| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| |
| target datalayout = "e-p:64:64:64-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128" |
| |
| define i32 @sub_constant(i32 %x) { |
| ; CHECK-LABEL: @sub_constant( |
| ; CHECK-NEXT: [[R:%.*]] = add i32 [[X:%.*]], -42 |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %r = sub i32 %x, 42 |
| ret i32 %r |
| } |
| |
| @g = global i32 0 |
| |
| define i32 @sub_constant_expression(i32 %x) { |
| ; CHECK-LABEL: @sub_constant_expression( |
| ; CHECK-NEXT: [[R:%.*]] = sub i32 [[X:%.*]], ptrtoint (i32* @g to i32) |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %r = sub i32 %x, ptrtoint (i32* @g to i32) |
| ret i32 %r |
| } |
| |
| define <2 x i32> @sub_constant_vec(<2 x i32> %x) { |
| ; CHECK-LABEL: @sub_constant_vec( |
| ; CHECK-NEXT: [[R:%.*]] = add <2 x i32> [[X:%.*]], <i32 -42, i32 12> |
| ; CHECK-NEXT: ret <2 x i32> [[R]] |
| ; |
| %r = sub <2 x i32> %x, <i32 42, i32 -12> |
| ret <2 x i32> %r |
| } |
| |
| define <3 x i33> @sub_constant_vec_weird_type(<3 x i33> %x) { |
| ; CHECK-LABEL: @sub_constant_vec_weird_type( |
| ; CHECK-NEXT: [[R:%.*]] = add <3 x i33> [[X:%.*]], <i33 42, i33 -42, i33 12> |
| ; CHECK-NEXT: ret <3 x i33> [[R]] |
| ; |
| %r = sub <3 x i33> %x, <i33 -42, i33 42, i33 -12> |
| ret <3 x i33> %r |
| } |
| |
| define <4 x i32> @sub_constant_expression_vec(<4 x i32> %x) { |
| ; CHECK-LABEL: @sub_constant_expression_vec( |
| ; CHECK-NEXT: [[R:%.*]] = sub <4 x i32> [[X:%.*]], bitcast (i128 ptrtoint (i32* @g to i128) to <4 x i32>) |
| ; CHECK-NEXT: ret <4 x i32> [[R]] |
| ; |
| %r = sub <4 x i32> %x, bitcast (i128 ptrtoint (i32* @g to i128) to <4 x i32>) |
| ret <4 x i32> %r |
| } |
| |
| define i32 @neg_sub(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @neg_sub( |
| ; CHECK-NEXT: [[R:%.*]] = add i32 [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %neg = sub i32 0, %x |
| %r = sub i32 %y, %neg |
| ret i32 %r |
| } |
| |
| define i32 @neg_nsw_sub(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @neg_nsw_sub( |
| ; CHECK-NEXT: [[R:%.*]] = add i32 [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %neg = sub nsw i32 0, %x |
| %r = sub i32 %y, %neg |
| ret i32 %r |
| } |
| |
| define i32 @neg_sub_nsw(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @neg_sub_nsw( |
| ; CHECK-NEXT: [[R:%.*]] = add i32 [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %neg = sub i32 0, %x |
| %r = sub nsw i32 %y, %neg |
| ret i32 %r |
| } |
| |
| define i32 @neg_nsw_sub_nsw(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @neg_nsw_sub_nsw( |
| ; CHECK-NEXT: [[R:%.*]] = add nsw i32 [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %neg = sub nsw i32 0, %x |
| %r = sub nsw i32 %y, %neg |
| ret i32 %r |
| } |
| |
| define <2 x i32> @neg_sub_vec(<2 x i32> %x, <2 x i32> %y) { |
| ; CHECK-LABEL: @neg_sub_vec( |
| ; CHECK-NEXT: [[R:%.*]] = add <2 x i32> [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: ret <2 x i32> [[R]] |
| ; |
| %neg = sub <2 x i32> zeroinitializer, %x |
| %r = sub <2 x i32> %y, %neg |
| ret <2 x i32> %r |
| } |
| |
| define <2 x i32> @neg_nsw_sub_vec(<2 x i32> %x, <2 x i32> %y) { |
| ; CHECK-LABEL: @neg_nsw_sub_vec( |
| ; CHECK-NEXT: [[R:%.*]] = add <2 x i32> [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: ret <2 x i32> [[R]] |
| ; |
| %neg = sub nsw <2 x i32> zeroinitializer, %x |
| %r = sub <2 x i32> %y, %neg |
| ret <2 x i32> %r |
| } |
| |
| define <2 x i32> @neg_sub_nsw_vec(<2 x i32> %x, <2 x i32> %y) { |
| ; CHECK-LABEL: @neg_sub_nsw_vec( |
| ; CHECK-NEXT: [[R:%.*]] = add <2 x i32> [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: ret <2 x i32> [[R]] |
| ; |
| %neg = sub <2 x i32> zeroinitializer, %x |
| %r = sub nsw <2 x i32> %y, %neg |
| ret <2 x i32> %r |
| } |
| |
| define <2 x i32> @neg_nsw_sub_nsw_vec(<2 x i32> %x, <2 x i32> %y) { |
| ; CHECK-LABEL: @neg_nsw_sub_nsw_vec( |
| ; CHECK-NEXT: [[R:%.*]] = add nsw <2 x i32> [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: ret <2 x i32> [[R]] |
| ; |
| %neg = sub nsw <2 x i32> zeroinitializer, %x |
| %r = sub nsw <2 x i32> %y, %neg |
| ret <2 x i32> %r |
| } |
| |
| define <2 x i32> @neg_sub_vec_undef(<2 x i32> %x, <2 x i32> %y) { |
| ; CHECK-LABEL: @neg_sub_vec_undef( |
| ; CHECK-NEXT: [[R:%.*]] = add <2 x i32> [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: ret <2 x i32> [[R]] |
| ; |
| %neg = sub <2 x i32> <i32 0, i32 undef>, %x |
| %r = sub <2 x i32> %y, %neg |
| ret <2 x i32> %r |
| } |
| |
| define <2 x i32> @neg_nsw_sub_vec_undef(<2 x i32> %x, <2 x i32> %y) { |
| ; CHECK-LABEL: @neg_nsw_sub_vec_undef( |
| ; CHECK-NEXT: [[R:%.*]] = add <2 x i32> [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: ret <2 x i32> [[R]] |
| ; |
| %neg = sub nsw <2 x i32> <i32 undef, i32 0>, %x |
| %r = sub <2 x i32> %y, %neg |
| ret <2 x i32> %r |
| } |
| |
| define <2 x i32> @neg_sub_nsw_vec_undef(<2 x i32> %x, <2 x i32> %y) { |
| ; CHECK-LABEL: @neg_sub_nsw_vec_undef( |
| ; CHECK-NEXT: [[R:%.*]] = add <2 x i32> [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: ret <2 x i32> [[R]] |
| ; |
| %neg = sub <2 x i32> <i32 undef, i32 0>, %x |
| %r = sub nsw <2 x i32> %y, %neg |
| ret <2 x i32> %r |
| } |
| |
| ; This should not drop 'nsw'. |
| |
| define <2 x i32> @neg_nsw_sub_nsw_vec_undef(<2 x i32> %x, <2 x i32> %y) { |
| ; CHECK-LABEL: @neg_nsw_sub_nsw_vec_undef( |
| ; CHECK-NEXT: [[R:%.*]] = add nsw <2 x i32> [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: ret <2 x i32> [[R]] |
| ; |
| %neg = sub nsw <2 x i32> <i32 0, i32 undef>, %x |
| %r = sub nsw <2 x i32> %y, %neg |
| ret <2 x i32> %r |
| } |
| |
| ; (~X) - (~Y) --> Y - X |
| ; Also, show that we can handle extra uses and vectors. |
| |
| declare void @use8(i8) |
| |
| define i8 @notnotsub(i8 %x, i8 %y) { |
| ; CHECK-LABEL: @notnotsub( |
| ; CHECK-NEXT: [[NX:%.*]] = xor i8 [[X:%.*]], -1 |
| ; CHECK-NEXT: [[NY:%.*]] = xor i8 [[Y:%.*]], -1 |
| ; CHECK-NEXT: [[SUB:%.*]] = sub i8 [[Y]], [[X]] |
| ; CHECK-NEXT: call void @use8(i8 [[NX]]) |
| ; CHECK-NEXT: call void @use8(i8 [[NY]]) |
| ; CHECK-NEXT: ret i8 [[SUB]] |
| ; |
| %nx = xor i8 %x, -1 |
| %ny = xor i8 %y, -1 |
| %sub = sub i8 %nx, %ny |
| call void @use8(i8 %nx) |
| call void @use8(i8 %ny) |
| ret i8 %sub |
| } |
| |
| define <2 x i8> @notnotsub_vec(<2 x i8> %x, <2 x i8> %y) { |
| ; CHECK-LABEL: @notnotsub_vec( |
| ; CHECK-NEXT: [[SUB:%.*]] = sub <2 x i8> [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: ret <2 x i8> [[SUB]] |
| ; |
| %nx = xor <2 x i8> %x, <i8 -1, i8 -1> |
| %ny = xor <2 x i8> %y, <i8 -1, i8 -1> |
| %sub = sub <2 x i8> %nx, %ny |
| ret <2 x i8> %sub |
| } |
| |
| define <2 x i8> @notnotsub_vec_undef_elts(<2 x i8> %x, <2 x i8> %y) { |
| ; CHECK-LABEL: @notnotsub_vec_undef_elts( |
| ; CHECK-NEXT: [[SUB:%.*]] = sub <2 x i8> [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: ret <2 x i8> [[SUB]] |
| ; |
| %nx = xor <2 x i8> %x, <i8 undef, i8 -1> |
| %ny = xor <2 x i8> %y, <i8 -1, i8 undef> |
| %sub = sub <2 x i8> %nx, %ny |
| ret <2 x i8> %sub |
| } |
| |
| define i32 @test5(i32 %A, i32 %B, i32 %C) { |
| ; CHECK-LABEL: @test5( |
| ; CHECK-NEXT: [[D_NEG:%.*]] = sub i32 [[C:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: [[E:%.*]] = add i32 [[D_NEG]], [[A:%.*]] |
| ; CHECK-NEXT: ret i32 [[E]] |
| ; |
| %D = sub i32 %B, %C |
| %E = sub i32 %A, %D |
| ret i32 %E |
| } |
| |
| define i32 @test6(i32 %A, i32 %B) { |
| ; CHECK-LABEL: @test6( |
| ; CHECK-NEXT: [[B_NOT:%.*]] = xor i32 [[B:%.*]], -1 |
| ; CHECK-NEXT: [[D:%.*]] = and i32 [[B_NOT]], [[A:%.*]] |
| ; CHECK-NEXT: ret i32 [[D]] |
| ; |
| %C = and i32 %A, %B |
| %D = sub i32 %A, %C |
| ret i32 %D |
| } |
| |
| define i32 @test6commuted(i32 %A, i32 %B) { |
| ; CHECK-LABEL: @test6commuted( |
| ; CHECK-NEXT: [[B_NOT:%.*]] = xor i32 [[B:%.*]], -1 |
| ; CHECK-NEXT: [[D:%.*]] = and i32 [[B_NOT]], [[A:%.*]] |
| ; CHECK-NEXT: ret i32 [[D]] |
| ; |
| %C = and i32 %B, %A |
| %D = sub i32 %A, %C |
| ret i32 %D |
| } |
| |
| define i32 @test7(i32 %A) { |
| ; CHECK-LABEL: @test7( |
| ; CHECK-NEXT: [[B:%.*]] = xor i32 [[A:%.*]], -1 |
| ; CHECK-NEXT: ret i32 [[B]] |
| ; |
| %B = sub i32 -1, %A |
| ret i32 %B |
| } |
| |
| define i32 @test8(i32 %A) { |
| ; CHECK-LABEL: @test8( |
| ; CHECK-NEXT: [[C:%.*]] = shl i32 [[A:%.*]], 3 |
| ; CHECK-NEXT: ret i32 [[C]] |
| ; |
| %B = mul i32 9, %A |
| %C = sub i32 %B, %A |
| ret i32 %C |
| } |
| |
| define i32 @test9(i32 %A) { |
| ; CHECK-LABEL: @test9( |
| ; CHECK-NEXT: [[C:%.*]] = mul i32 [[A:%.*]], -2 |
| ; CHECK-NEXT: ret i32 [[C]] |
| ; |
| %B = mul i32 3, %A |
| %C = sub i32 %A, %B |
| ret i32 %C |
| } |
| |
| define i1 @test11(i8 %A, i8 %B) { |
| ; CHECK-LABEL: @test11( |
| ; CHECK-NEXT: [[D:%.*]] = icmp ne i8 [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: ret i1 [[D]] |
| ; |
| %C = sub i8 %A, %B |
| %D = icmp ne i8 %C, 0 |
| ret i1 %D |
| } |
| |
| define <2 x i1> @test11vec(<2 x i8> %A, <2 x i8> %B) { |
| ; CHECK-LABEL: @test11vec( |
| ; CHECK-NEXT: [[D:%.*]] = icmp ne <2 x i8> [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: ret <2 x i1> [[D]] |
| ; |
| %C = sub <2 x i8> %A, %B |
| %D = icmp ne <2 x i8> %C, zeroinitializer |
| ret <2 x i1> %D |
| } |
| |
| define i32 @test12(i32 %A) { |
| ; CHECK-LABEL: @test12( |
| ; CHECK-NEXT: [[B_NEG:%.*]] = lshr i32 [[A:%.*]], 31 |
| ; CHECK-NEXT: ret i32 [[B_NEG]] |
| ; |
| %B = ashr i32 %A, 31 |
| %C = sub i32 0, %B |
| ret i32 %C |
| } |
| |
| define i32 @test13(i32 %A) { |
| ; CHECK-LABEL: @test13( |
| ; CHECK-NEXT: [[B_NEG:%.*]] = ashr i32 [[A:%.*]], 31 |
| ; CHECK-NEXT: ret i32 [[B_NEG]] |
| ; |
| %B = lshr i32 %A, 31 |
| %C = sub i32 0, %B |
| ret i32 %C |
| } |
| |
| define <2 x i32> @test12vec(<2 x i32> %A) { |
| ; CHECK-LABEL: @test12vec( |
| ; CHECK-NEXT: [[B_NEG:%.*]] = lshr <2 x i32> [[A:%.*]], <i32 31, i32 31> |
| ; CHECK-NEXT: ret <2 x i32> [[B_NEG]] |
| ; |
| %B = ashr <2 x i32> %A, <i32 31, i32 31> |
| %C = sub <2 x i32> zeroinitializer, %B |
| ret <2 x i32> %C |
| } |
| |
| define <2 x i32> @test13vec(<2 x i32> %A) { |
| ; CHECK-LABEL: @test13vec( |
| ; CHECK-NEXT: [[B_NEG:%.*]] = ashr <2 x i32> [[A:%.*]], <i32 31, i32 31> |
| ; CHECK-NEXT: ret <2 x i32> [[B_NEG]] |
| ; |
| %B = lshr <2 x i32> %A, <i32 31, i32 31> |
| %C = sub <2 x i32> zeroinitializer, %B |
| ret <2 x i32> %C |
| } |
| |
| define i32 @test15(i32 %A, i32 %B) { |
| ; CHECK-LABEL: @test15( |
| ; CHECK-NEXT: [[C:%.*]] = sub i32 0, [[A:%.*]] |
| ; CHECK-NEXT: [[D:%.*]] = srem i32 [[B:%.*]], [[C]] |
| ; CHECK-NEXT: ret i32 [[D]] |
| ; |
| %C = sub i32 0, %A |
| %D = srem i32 %B, %C |
| ret i32 %D |
| } |
| |
| define i32 @test16(i32 %A) { |
| ; CHECK-LABEL: @test16( |
| ; CHECK-NEXT: [[X_NEG:%.*]] = sdiv i32 [[A:%.*]], -1123 |
| ; CHECK-NEXT: ret i32 [[X_NEG]] |
| ; |
| %X = sdiv i32 %A, 1123 |
| %Y = sub i32 0, %X |
| ret i32 %Y |
| } |
| |
| ; Can't fold subtract here because negation it might oveflow. |
| ; PR3142 |
| define i32 @test17(i32 %A) { |
| ; CHECK-LABEL: @test17( |
| ; CHECK-NEXT: [[B:%.*]] = sub i32 0, [[A:%.*]] |
| ; CHECK-NEXT: [[C:%.*]] = sdiv i32 [[B]], 1234 |
| ; CHECK-NEXT: ret i32 [[C]] |
| ; |
| %B = sub i32 0, %A |
| %C = sdiv i32 %B, 1234 |
| ret i32 %C |
| } |
| |
| define i64 @test18(i64 %Y) { |
| ; CHECK-LABEL: @test18( |
| ; CHECK-NEXT: ret i64 0 |
| ; |
| %i.4 = shl i64 %Y, 2 |
| %i.12 = shl i64 %Y, 2 |
| %i.8 = sub i64 %i.4, %i.12 |
| ret i64 %i.8 |
| } |
| |
| define i1 @test20(i32 %g, i32 %h) { |
| ; CHECK-LABEL: @test20( |
| ; CHECK-NEXT: [[I_4:%.*]] = icmp ne i32 [[H:%.*]], 0 |
| ; CHECK-NEXT: ret i1 [[I_4]] |
| ; |
| %i.2 = sub i32 %g, %h |
| %i.4 = icmp ne i32 %i.2, %g |
| ret i1 %i.4 |
| } |
| |
| define i1 @test21(i32 %g, i32 %h) { |
| ; CHECK-LABEL: @test21( |
| ; CHECK-NEXT: [[I_4:%.*]] = icmp ne i32 [[H:%.*]], 0 |
| ; CHECK-NEXT: ret i1 [[I_4]] |
| ; |
| %i.2 = sub i32 %g, %h |
| %i.4 = icmp ne i32 %i.2, %g |
| ret i1 %i.4 |
| } |
| |
| ; PR2298 |
| define zeroext i1 @test22(i32 %a, i32 %b) nounwind { |
| ; CHECK-LABEL: @test22( |
| ; CHECK-NEXT: [[I5:%.*]] = icmp eq i32 [[B:%.*]], [[A:%.*]] |
| ; CHECK-NEXT: ret i1 [[I5]] |
| ; |
| %i2 = sub i32 0, %a |
| %i4 = sub i32 0, %b |
| %i5 = icmp eq i32 %i2, %i4 |
| ret i1 %i5 |
| } |
| |
| define i32 @test26(i32 %x) { |
| ; CHECK-LABEL: @test26( |
| ; CHECK-NEXT: [[SHL_NEG:%.*]] = shl i32 -3, [[X:%.*]] |
| ; CHECK-NEXT: ret i32 [[SHL_NEG]] |
| ; |
| %shl = shl i32 3, %x |
| %neg = sub i32 0, %shl |
| ret i32 %neg |
| } |
| |
| define i64 @test_neg_shl_sub(i64 %a, i64 %b) { |
| ; CHECK-LABEL: @test_neg_shl_sub( |
| ; CHECK-NEXT: [[SUB_NEG:%.*]] = sub i64 [[B:%.*]], [[A:%.*]] |
| ; CHECK-NEXT: [[MUL_NEG:%.*]] = shl i64 [[SUB_NEG]], 2 |
| ; CHECK-NEXT: ret i64 [[MUL_NEG]] |
| ; |
| %sub = sub i64 %a, %b |
| %mul = shl i64 %sub, 2 |
| %neg = sub i64 0, %mul |
| ret i64 %neg |
| } |
| |
| define i64 @test_neg_shl_sub_extra_use1(i64 %a, i64 %b, i64* %p) { |
| ; CHECK-LABEL: @test_neg_shl_sub_extra_use1( |
| ; CHECK-NEXT: [[SUB:%.*]] = sub i64 [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: store i64 [[SUB]], i64* [[P:%.*]], align 8 |
| ; CHECK-NEXT: [[MUL_NEG:%.*]] = mul i64 [[SUB]], -4 |
| ; CHECK-NEXT: ret i64 [[MUL_NEG]] |
| ; |
| %sub = sub i64 %a, %b |
| store i64 %sub, i64* %p |
| %mul = shl i64 %sub, 2 |
| %neg = sub i64 0, %mul |
| ret i64 %neg |
| } |
| |
| define i64 @test_neg_shl_sub_extra_use2(i64 %a, i64 %b, i64* %p) { |
| ; CHECK-LABEL: @test_neg_shl_sub_extra_use2( |
| ; CHECK-NEXT: [[SUB:%.*]] = sub i64 [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: [[MUL:%.*]] = shl i64 [[SUB]], 2 |
| ; CHECK-NEXT: store i64 [[MUL]], i64* [[P:%.*]], align 8 |
| ; CHECK-NEXT: [[NEG:%.*]] = sub i64 0, [[MUL]] |
| ; CHECK-NEXT: ret i64 [[NEG]] |
| ; |
| %sub = sub i64 %a, %b |
| %mul = shl i64 %sub, 2 |
| store i64 %mul, i64* %p |
| %neg = sub i64 0, %mul |
| ret i64 %neg |
| } |
| |
| define i64 @test_neg_shl_div(i64 %a) { |
| ; CHECK-LABEL: @test_neg_shl_div( |
| ; CHECK-NEXT: [[DIV_NEG:%.*]] = sdiv i64 [[A:%.*]], -3 |
| ; CHECK-NEXT: [[SHL_NEG:%.*]] = shl i64 [[DIV_NEG]], 2 |
| ; CHECK-NEXT: ret i64 [[SHL_NEG]] |
| ; |
| %div = sdiv i64 %a, 3 |
| %shl = shl i64 %div, 2 |
| %neg = sub i64 0, %shl |
| ret i64 %neg |
| } |
| |
| define i64 @test_neg_shl_zext_i1(i1 %a, i64 %b) { |
| ; CHECK-LABEL: @test_neg_shl_zext_i1( |
| ; CHECK-NEXT: [[EXT_NEG:%.*]] = sext i1 [[A:%.*]] to i64 |
| ; CHECK-NEXT: [[SHL_NEG:%.*]] = shl i64 [[EXT_NEG]], [[B:%.*]] |
| ; CHECK-NEXT: ret i64 [[SHL_NEG]] |
| ; |
| %ext = zext i1 %a to i64 |
| %shl = shl i64 %ext, %b |
| %neg = sub i64 0, %shl |
| ret i64 %neg |
| } |
| |
| define i64 @test_neg_shl_sext_i1(i1 %a, i64 %b) { |
| ; CHECK-LABEL: @test_neg_shl_sext_i1( |
| ; CHECK-NEXT: [[EXT_NEG:%.*]] = zext i1 [[A:%.*]] to i64 |
| ; CHECK-NEXT: [[SHL_NEG:%.*]] = shl i64 [[EXT_NEG]], [[B:%.*]] |
| ; CHECK-NEXT: ret i64 [[SHL_NEG]] |
| ; |
| %ext = sext i1 %a to i64 |
| %shl = shl i64 %ext, %b |
| %neg = sub i64 0, %shl |
| ret i64 %neg |
| } |
| |
| define i64 @test_neg_zext_i1_extra_use(i1 %a, i64 %b, i64* %p) { |
| ; CHECK-LABEL: @test_neg_zext_i1_extra_use( |
| ; CHECK-NEXT: [[EXT_NEG:%.*]] = sext i1 [[A:%.*]] to i64 |
| ; CHECK-NEXT: [[EXT:%.*]] = zext i1 [[A]] to i64 |
| ; CHECK-NEXT: store i64 [[EXT]], i64* [[P:%.*]], align 8 |
| ; CHECK-NEXT: ret i64 [[EXT_NEG]] |
| ; |
| %ext = zext i1 %a to i64 |
| %neg = sub i64 0, %ext |
| store i64 %ext, i64* %p |
| ret i64 %neg |
| } |
| |
| define i64 @test_neg_sext_i1_extra_use(i1 %a, i64 %b, i64* %p) { |
| ; CHECK-LABEL: @test_neg_sext_i1_extra_use( |
| ; CHECK-NEXT: [[EXT_NEG:%.*]] = zext i1 [[A:%.*]] to i64 |
| ; CHECK-NEXT: [[EXT:%.*]] = sext i1 [[A]] to i64 |
| ; CHECK-NEXT: store i64 [[EXT]], i64* [[P:%.*]], align 8 |
| ; CHECK-NEXT: ret i64 [[EXT_NEG]] |
| ; |
| %ext = sext i1 %a to i64 |
| %neg = sub i64 0, %ext |
| store i64 %ext, i64* %p |
| ret i64 %neg |
| } |
| |
| define i32 @test_neg_trunc_shl_sub(i64 %a, i64 %b) { |
| ; CHECK-LABEL: @test_neg_trunc_shl_sub( |
| ; CHECK-NEXT: [[SUB_NEG:%.*]] = sub i64 [[B:%.*]], [[A:%.*]] |
| ; CHECK-NEXT: [[SUB_TR_NEG:%.*]] = trunc i64 [[SUB_NEG]] to i32 |
| ; CHECK-NEXT: [[TRUNC_NEG:%.*]] = shl i32 [[SUB_TR_NEG]], 2 |
| ; CHECK-NEXT: ret i32 [[TRUNC_NEG]] |
| ; |
| %sub = sub i64 %a, %b |
| %shl = shl i64 %sub, 2 |
| %trunc = trunc i64 %shl to i32 |
| %neg = sub i32 0, %trunc |
| ret i32 %neg |
| } |
| |
| define i32 @test_neg_trunc_shl_ashr(i64 %a, i64 %b) { |
| ; CHECK-LABEL: @test_neg_trunc_shl_ashr( |
| ; CHECK-NEXT: [[SHR_NEG:%.*]] = lshr i64 [[A:%.*]], 63 |
| ; CHECK-NEXT: [[SHL_NEG:%.*]] = shl i64 [[SHR_NEG]], [[B:%.*]] |
| ; CHECK-NEXT: [[TRUNC_NEG:%.*]] = trunc i64 [[SHL_NEG]] to i32 |
| ; CHECK-NEXT: ret i32 [[TRUNC_NEG]] |
| ; |
| %shr = ashr i64 %a, 63 |
| %shl = shl i64 %shr, %b |
| %trunc = trunc i64 %shl to i32 |
| %neg = sub i32 0, %trunc |
| ret i32 %neg |
| } |
| |
| define i32 @test_neg_trunc_shl_lshr(i64 %a, i64 %b) { |
| ; CHECK-LABEL: @test_neg_trunc_shl_lshr( |
| ; CHECK-NEXT: [[SHR_NEG:%.*]] = ashr i64 [[A:%.*]], 63 |
| ; CHECK-NEXT: [[SHL_NEG:%.*]] = shl i64 [[SHR_NEG]], [[B:%.*]] |
| ; CHECK-NEXT: [[TRUNC_NEG:%.*]] = trunc i64 [[SHL_NEG]] to i32 |
| ; CHECK-NEXT: ret i32 [[TRUNC_NEG]] |
| ; |
| %shr = lshr i64 %a, 63 |
| %shl = shl i64 %shr, %b |
| %trunc = trunc i64 %shl to i32 |
| %neg = sub i32 0, %trunc |
| ret i32 %neg |
| } |
| |
| define i64 @test_neg_mul_sub(i64 %a, i64 %b, i64 %c) { |
| ; CHECK-LABEL: @test_neg_mul_sub( |
| ; CHECK-NEXT: [[SUB_NEG:%.*]] = sub i64 [[B:%.*]], [[A:%.*]] |
| ; CHECK-NEXT: [[MUL_NEG:%.*]] = mul i64 [[SUB_NEG]], [[C:%.*]] |
| ; CHECK-NEXT: ret i64 [[MUL_NEG]] |
| ; |
| %sub = sub i64 %a, %b |
| %mul = mul i64 %sub, %c |
| %neg = sub i64 0, %mul |
| ret i64 %neg |
| } |
| |
| define i64 @test_neg_mul_sub_commuted(i64 %a, i64 %b, i64 %c) { |
| ; CHECK-LABEL: @test_neg_mul_sub_commuted( |
| ; CHECK-NEXT: [[COMPLEX:%.*]] = mul i64 [[C:%.*]], [[C]] |
| ; CHECK-NEXT: [[SUB_NEG:%.*]] = sub i64 [[B:%.*]], [[A:%.*]] |
| ; CHECK-NEXT: [[MUL_NEG:%.*]] = mul i64 [[SUB_NEG]], [[COMPLEX]] |
| ; CHECK-NEXT: ret i64 [[MUL_NEG]] |
| ; |
| %complex = mul i64 %c, %c |
| %sub = sub i64 %a, %b |
| %mul = mul i64 %complex, %sub |
| %neg = sub i64 0, %mul |
| ret i64 %neg |
| } |
| |
| define i32 @test27(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @test27( |
| ; CHECK-NEXT: [[MUL_NEG:%.*]] = shl i32 [[Y:%.*]], 3 |
| ; CHECK-NEXT: [[SUB:%.*]] = add i32 [[MUL_NEG]], [[X:%.*]] |
| ; CHECK-NEXT: ret i32 [[SUB]] |
| ; |
| %mul = mul i32 %y, -8 |
| %sub = sub i32 %x, %mul |
| ret i32 %sub |
| } |
| |
| define <2 x i32> @test27vec(<2 x i32> %x, <2 x i32> %y) { |
| ; CHECK-LABEL: @test27vec( |
| ; CHECK-NEXT: [[MUL_NEG:%.*]] = mul <2 x i32> [[Y:%.*]], <i32 8, i32 6> |
| ; CHECK-NEXT: [[SUB:%.*]] = add <2 x i32> [[MUL_NEG]], [[X:%.*]] |
| ; CHECK-NEXT: ret <2 x i32> [[SUB]] |
| ; |
| %mul = mul <2 x i32> %y, <i32 -8, i32 -6> |
| %sub = sub <2 x i32> %x, %mul |
| ret <2 x i32> %sub |
| } |
| |
| define <2 x i32> @test27vecsplat(<2 x i32> %x, <2 x i32> %y) { |
| ; CHECK-LABEL: @test27vecsplat( |
| ; CHECK-NEXT: [[MUL_NEG:%.*]] = shl <2 x i32> [[Y:%.*]], <i32 3, i32 3> |
| ; CHECK-NEXT: [[SUB:%.*]] = add <2 x i32> [[MUL_NEG]], [[X:%.*]] |
| ; CHECK-NEXT: ret <2 x i32> [[SUB]] |
| ; |
| %mul = mul <2 x i32> %y, <i32 -8, i32 -8> |
| %sub = sub <2 x i32> %x, %mul |
| ret <2 x i32> %sub |
| } |
| |
| define <2 x i32> @test27vecmixed(<2 x i32> %x, <2 x i32> %y) { |
| ; CHECK-LABEL: @test27vecmixed( |
| ; CHECK-NEXT: [[MUL_NEG:%.*]] = mul <2 x i32> [[Y:%.*]], <i32 8, i32 -8> |
| ; CHECK-NEXT: [[SUB:%.*]] = add <2 x i32> [[MUL_NEG]], [[X:%.*]] |
| ; CHECK-NEXT: ret <2 x i32> [[SUB]] |
| ; |
| %mul = mul <2 x i32> %y, <i32 -8, i32 8> |
| %sub = sub <2 x i32> %x, %mul |
| ret <2 x i32> %sub |
| } |
| |
| define i32 @test27commuted(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @test27commuted( |
| ; CHECK-NEXT: [[MUL_NEG:%.*]] = shl i32 [[Y:%.*]], 3 |
| ; CHECK-NEXT: [[SUB:%.*]] = add i32 [[MUL_NEG]], [[X:%.*]] |
| ; CHECK-NEXT: ret i32 [[SUB]] |
| ; |
| %mul = mul i32 -8, %y |
| %sub = sub i32 %x, %mul |
| ret i32 %sub |
| } |
| |
| define <2 x i32> @test27commutedvec(<2 x i32> %x, <2 x i32> %y) { |
| ; CHECK-LABEL: @test27commutedvec( |
| ; CHECK-NEXT: [[MUL_NEG:%.*]] = mul <2 x i32> [[Y:%.*]], <i32 8, i32 6> |
| ; CHECK-NEXT: [[SUB:%.*]] = add <2 x i32> [[MUL_NEG]], [[X:%.*]] |
| ; CHECK-NEXT: ret <2 x i32> [[SUB]] |
| ; |
| %mul = mul <2 x i32> <i32 -8, i32 -6>, %y |
| %sub = sub <2 x i32> %x, %mul |
| ret <2 x i32> %sub |
| } |
| |
| define <2 x i32> @test27commutedvecsplat(<2 x i32> %x, <2 x i32> %y) { |
| ; CHECK-LABEL: @test27commutedvecsplat( |
| ; CHECK-NEXT: [[MUL_NEG:%.*]] = shl <2 x i32> [[Y:%.*]], <i32 3, i32 3> |
| ; CHECK-NEXT: [[SUB:%.*]] = add <2 x i32> [[MUL_NEG]], [[X:%.*]] |
| ; CHECK-NEXT: ret <2 x i32> [[SUB]] |
| ; |
| %mul = mul <2 x i32> <i32 -8, i32 -8>, %y |
| %sub = sub <2 x i32> %x, %mul |
| ret <2 x i32> %sub |
| } |
| |
| define <2 x i32> @test27commutedvecmixed(<2 x i32> %x, <2 x i32> %y) { |
| ; CHECK-LABEL: @test27commutedvecmixed( |
| ; CHECK-NEXT: [[MUL_NEG:%.*]] = mul <2 x i32> [[Y:%.*]], <i32 8, i32 -8> |
| ; CHECK-NEXT: [[SUB:%.*]] = add <2 x i32> [[MUL_NEG]], [[X:%.*]] |
| ; CHECK-NEXT: ret <2 x i32> [[SUB]] |
| ; |
| %mul = mul <2 x i32> <i32 -8, i32 8>, %y |
| %sub = sub <2 x i32> %x, %mul |
| ret <2 x i32> %sub |
| } |
| |
| define i32 @test28(i32 %x, i32 %y, i32 %z) { |
| ; CHECK-LABEL: @test28( |
| ; CHECK-NEXT: [[TMP1:%.*]] = mul i32 [[Z:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[SUB:%.*]] = add i32 [[TMP1]], [[X:%.*]] |
| ; CHECK-NEXT: ret i32 [[SUB]] |
| ; |
| %neg = sub i32 0, %z |
| %mul = mul i32 %neg, %y |
| %sub = sub i32 %x, %mul |
| ret i32 %sub |
| } |
| |
| define i32 @test28commuted(i32 %x, i32 %y, i32 %z) { |
| ; CHECK-LABEL: @test28commuted( |
| ; CHECK-NEXT: [[TMP1:%.*]] = mul i32 [[Z:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[SUB:%.*]] = add i32 [[TMP1]], [[X:%.*]] |
| ; CHECK-NEXT: ret i32 [[SUB]] |
| ; |
| %neg = sub i32 0, %z |
| %mul = mul i32 %y, %neg |
| %sub = sub i32 %x, %mul |
| ret i32 %sub |
| } |
| |
| define <2 x i64> @test31(<2 x i64> %A) { |
| ; CHECK-LABEL: @test31( |
| ; CHECK-NEXT: [[SUB:%.*]] = add <2 x i64> [[A:%.*]], <i64 3, i64 4> |
| ; CHECK-NEXT: ret <2 x i64> [[SUB]] |
| ; |
| %xor = xor <2 x i64> %A, <i64 -1, i64 -1> |
| %sub = sub <2 x i64> <i64 2, i64 3>, %xor |
| ret <2 x i64> %sub |
| } |
| |
| define <2 x i64> @test32(<2 x i64> %A) { |
| ; CHECK-LABEL: @test32( |
| ; CHECK-NEXT: [[SUB:%.*]] = sub <2 x i64> <i64 3, i64 4>, [[A:%.*]] |
| ; CHECK-NEXT: ret <2 x i64> [[SUB]] |
| ; |
| %add = add <2 x i64> %A, <i64 -1, i64 -1> |
| %sub = sub <2 x i64> <i64 2, i64 3>, %add |
| ret <2 x i64> %sub |
| } |
| |
| define <2 x i64> @test35(<2 x i64> %A) { |
| ; CHECK-LABEL: @test35( |
| ; CHECK-NEXT: [[SUB:%.*]] = mul <2 x i64> [[A:%.*]], <i64 -2, i64 -3> |
| ; CHECK-NEXT: ret <2 x i64> [[SUB]] |
| ; |
| %mul = mul <2 x i64> %A, <i64 3, i64 4> |
| %sub = sub <2 x i64> %A, %mul |
| ret <2 x i64> %sub |
| } |
| |
| define <2 x i64> @test36(<2 x i64> %A) { |
| ; CHECK-LABEL: @test36( |
| ; CHECK-NEXT: [[SUB:%.*]] = mul <2 x i64> [[A:%.*]], <i64 7, i64 15> |
| ; CHECK-NEXT: ret <2 x i64> [[SUB]] |
| ; |
| %shl = shl <2 x i64> %A, <i64 3, i64 4> |
| %sub = sub <2 x i64> %shl, %A |
| ret <2 x i64> %sub |
| } |
| |
| define <2 x i32> @test37(<2 x i32> %A) { |
| ; CHECK-LABEL: @test37( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp eq <2 x i32> [[A:%.*]], <i32 -2147483648, i32 -2147483648> |
| ; CHECK-NEXT: [[DIV_NEG:%.*]] = sext <2 x i1> [[TMP1]] to <2 x i32> |
| ; CHECK-NEXT: ret <2 x i32> [[DIV_NEG]] |
| ; |
| %div = sdiv <2 x i32> %A, <i32 -2147483648, i32 -2147483648> |
| %sub = sub nsw <2 x i32> zeroinitializer, %div |
| ret <2 x i32> %sub |
| } |
| |
| define i32 @test38(i32 %A) { |
| ; CHECK-LABEL: @test38( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[A:%.*]], -2147483648 |
| ; CHECK-NEXT: [[DIV_NEG:%.*]] = sext i1 [[TMP1]] to i32 |
| ; CHECK-NEXT: ret i32 [[DIV_NEG]] |
| ; |
| %div = sdiv i32 %A, -2147483648 |
| %sub = sub nsw i32 0, %div |
| ret i32 %sub |
| } |
| |
| define i16 @test40(i16 %a, i16 %b) { |
| ; CHECK-LABEL: @test40( |
| ; CHECK-NEXT: [[ASHR:%.*]] = ashr i16 [[A:%.*]], 1 |
| ; CHECK-NEXT: [[ASHR1:%.*]] = ashr i16 [[B:%.*]], 1 |
| ; CHECK-NEXT: [[SUB:%.*]] = sub nsw i16 [[ASHR]], [[ASHR1]] |
| ; CHECK-NEXT: ret i16 [[SUB]] |
| ; |
| %ashr = ashr i16 %a, 1 |
| %ashr1 = ashr i16 %b, 1 |
| %sub = sub i16 %ashr, %ashr1 |
| ret i16 %sub |
| } |
| |
| define i32 @test41(i16 %a, i16 %b) { |
| ; CHECK-LABEL: @test41( |
| ; CHECK-NEXT: [[CONV:%.*]] = sext i16 [[A:%.*]] to i32 |
| ; CHECK-NEXT: [[CONV1:%.*]] = sext i16 [[B:%.*]] to i32 |
| ; CHECK-NEXT: [[SUB:%.*]] = sub nsw i32 [[CONV]], [[CONV1]] |
| ; CHECK-NEXT: ret i32 [[SUB]] |
| ; |
| %conv = sext i16 %a to i32 |
| %conv1 = sext i16 %b to i32 |
| %sub = sub i32 %conv, %conv1 |
| ret i32 %sub |
| } |
| |
| define i4 @test42(i4 %x, i4 %y) { |
| ; CHECK-LABEL: @test42( |
| ; CHECK-NEXT: [[A:%.*]] = and i4 [[Y:%.*]], 7 |
| ; CHECK-NEXT: [[B:%.*]] = and i4 [[X:%.*]], 7 |
| ; CHECK-NEXT: [[C:%.*]] = sub nsw i4 [[A]], [[B]] |
| ; CHECK-NEXT: ret i4 [[C]] |
| ; |
| %a = and i4 %y, 7 |
| %b = and i4 %x, 7 |
| %c = sub i4 %a, %b |
| ret i4 %c |
| } |
| |
| define i4 @test43(i4 %x, i4 %y) { |
| ; CHECK-LABEL: @test43( |
| ; CHECK-NEXT: [[A:%.*]] = or i4 [[X:%.*]], -8 |
| ; CHECK-NEXT: [[B:%.*]] = and i4 [[Y:%.*]], 7 |
| ; CHECK-NEXT: [[C:%.*]] = sub nuw i4 [[A]], [[B]] |
| ; CHECK-NEXT: ret i4 [[C]] |
| ; |
| %a = or i4 %x, -8 |
| %b = and i4 %y, 7 |
| %c = sub i4 %a, %b |
| ret i4 %c |
| } |
| |
| define i32 @test44(i32 %x) { |
| ; CHECK-LABEL: @test44( |
| ; CHECK-NEXT: [[SUB:%.*]] = add nsw i32 [[X:%.*]], -32768 |
| ; CHECK-NEXT: ret i32 [[SUB]] |
| ; |
| %sub = sub nsw i32 %x, 32768 |
| ret i32 %sub |
| } |
| |
| define <2 x i32> @test44vec(<2 x i32> %x) { |
| ; CHECK-LABEL: @test44vec( |
| ; CHECK-NEXT: [[SUB:%.*]] = add nsw <2 x i32> [[X:%.*]], <i32 -32768, i32 -32768> |
| ; CHECK-NEXT: ret <2 x i32> [[SUB]] |
| ; |
| %sub = sub nsw <2 x i32> %x, <i32 32768, i32 32768> |
| ret <2 x i32> %sub |
| } |
| |
| define <vscale x 2 x i32> @test44scalablevec(<vscale x 2 x i32> %x) { |
| ; CHECK-LABEL: @test44scalablevec( |
| ; CHECK-NEXT: [[SUB:%.*]] = add nsw <vscale x 2 x i32> [[X:%.*]], shufflevector (<vscale x 2 x i32> insertelement (<vscale x 2 x i32> poison, i32 -32768, i32 0), <vscale x 2 x i32> poison, <vscale x 2 x i32> zeroinitializer) |
| ; CHECK-NEXT: ret <vscale x 2 x i32> [[SUB]] |
| ; |
| %sub = sub nsw <vscale x 2 x i32> %x, shufflevector (<vscale x 2 x i32> insertelement (<vscale x 2 x i32> undef, i32 32768, i32 0), <vscale x 2 x i32> undef, <vscale x 2 x i32> zeroinitializer) |
| ret <vscale x 2 x i32> %sub |
| } |
| |
| define <2 x i16> @test44vecminval(<2 x i16> %x) { |
| ; CHECK-LABEL: @test44vecminval( |
| ; CHECK-NEXT: [[SUB:%.*]] = xor <2 x i16> [[X:%.*]], <i16 -32768, i16 -32768> |
| ; CHECK-NEXT: ret <2 x i16> [[SUB]] |
| ; |
| %sub = sub nsw <2 x i16> %x, <i16 -32768, i16 -32768> |
| ret <2 x i16> %sub |
| } |
| |
| ; FIXME: This isn't combined to xor as above because the pattern in visitSub |
| ; uses m_ImmConstant which matches Constant but (explicitly) not ConstantExpr. |
| define <vscale x 2 x i16> @test44scalablevecminval(<vscale x 2 x i16> %x) { |
| ; CHECK-LABEL: @test44scalablevecminval( |
| ; CHECK-NEXT: [[SUB:%.*]] = add <vscale x 2 x i16> [[X:%.*]], shufflevector (<vscale x 2 x i16> insertelement (<vscale x 2 x i16> poison, i16 -32768, i32 0), <vscale x 2 x i16> poison, <vscale x 2 x i32> zeroinitializer) |
| ; CHECK-NEXT: ret <vscale x 2 x i16> [[SUB]] |
| ; |
| %sub = sub nsw <vscale x 2 x i16> %x, shufflevector (<vscale x 2 x i16> insertelement (<vscale x 2 x i16> undef, i16 -32768, i32 0), <vscale x 2 x i16> undef, <vscale x 2 x i32> zeroinitializer) |
| ret <vscale x 2 x i16> %sub |
| } |
| |
| define i32 @test45(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @test45( |
| ; CHECK-NEXT: [[SUB:%.*]] = and i32 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: ret i32 [[SUB]] |
| ; |
| %or = or i32 %x, %y |
| %xor = xor i32 %x, %y |
| %sub = sub i32 %or, %xor |
| ret i32 %sub |
| } |
| |
| define i32 @test45commuted(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @test45commuted( |
| ; CHECK-NEXT: [[SUB:%.*]] = and i32 [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: ret i32 [[SUB]] |
| ; |
| %or = or i32 %x, %y |
| %xor = xor i32 %y, %x |
| %sub = sub i32 %or, %xor |
| ret i32 %sub |
| } |
| |
| define i32 @test46(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @test46( |
| ; CHECK-NEXT: [[X_NOT:%.*]] = xor i32 [[X:%.*]], -1 |
| ; CHECK-NEXT: [[SUB:%.*]] = and i32 [[X_NOT]], [[Y:%.*]] |
| ; CHECK-NEXT: ret i32 [[SUB]] |
| ; |
| %or = or i32 %x, %y |
| %sub = sub i32 %or, %x |
| ret i32 %sub |
| } |
| |
| define i32 @test46commuted(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @test46commuted( |
| ; CHECK-NEXT: [[X_NOT:%.*]] = xor i32 [[X:%.*]], -1 |
| ; CHECK-NEXT: [[SUB:%.*]] = and i32 [[X_NOT]], [[Y:%.*]] |
| ; CHECK-NEXT: ret i32 [[SUB]] |
| ; |
| %or = or i32 %y, %x |
| %sub = sub i32 %or, %x |
| ret i32 %sub |
| } |
| |
| define i32 @test47(i1 %A, i32 %B, i32 %C, i32 %D) { |
| ; CHECK-LABEL: @test47( |
| ; CHECK-NEXT: [[TMP1:%.*]] = sub i32 [[D:%.*]], [[C:%.*]] |
| ; CHECK-NEXT: [[SUB:%.*]] = select i1 [[A:%.*]], i32 [[TMP1]], i32 0 |
| ; CHECK-NEXT: ret i32 [[SUB]] |
| ; |
| %sel0 = select i1 %A, i32 %D, i32 %B |
| %sel1 = select i1 %A, i32 %C, i32 %B |
| %sub = sub i32 %sel0, %sel1 |
| ret i32 %sub |
| } |
| |
| define i32 @test48(i1 %A, i32 %B, i32 %C, i32 %D) { |
| ; CHECK-LABEL: @test48( |
| ; CHECK-NEXT: [[TMP1:%.*]] = sub i32 [[D:%.*]], [[C:%.*]] |
| ; CHECK-NEXT: [[SUB:%.*]] = select i1 [[A:%.*]], i32 0, i32 [[TMP1]] |
| ; CHECK-NEXT: ret i32 [[SUB]] |
| ; |
| %sel0 = select i1 %A, i32 %B, i32 %D |
| %sel1 = select i1 %A, i32 %B, i32 %C |
| %sub = sub i32 %sel0, %sel1 |
| ret i32 %sub |
| } |
| |
| define i32 @test49(i32 %X) { |
| ; CHECK-LABEL: @test49( |
| ; CHECK-NEXT: [[SUB:%.*]] = sub i32 1, [[X:%.*]] |
| ; CHECK-NEXT: [[RES:%.*]] = and i32 [[SUB]], 64 |
| ; CHECK-NEXT: ret i32 [[RES]] |
| ; |
| %sub = sub i32 129, %X |
| %res = and i32 %sub, 64 |
| ret i32 %res |
| } |
| |
| define i32 @test50(i32 %X) { |
| ; CHECK-LABEL: @test50( |
| ; CHECK-NEXT: [[SUB:%.*]] = sub i32 1, [[X:%.*]] |
| ; CHECK-NEXT: [[RES:%.*]] = and i32 [[SUB]], 127 |
| ; CHECK-NEXT: ret i32 [[RES]] |
| ; |
| %sub = sub i32 129, %X |
| %res = and i32 %sub, 127 |
| ret i32 %res |
| } |
| |
| define i32 @test51(i32 %X) { |
| ; CHECK-LABEL: @test51( |
| ; CHECK-NEXT: [[SUB:%.*]] = sub i32 126, [[X:%.*]] |
| ; CHECK-NEXT: [[RES:%.*]] = and i32 [[SUB]], 64 |
| ; CHECK-NEXT: ret i32 [[RES]] |
| ; |
| %sub = sub i32 254, %X |
| %res = and i32 %sub, 64 |
| ret i32 %res |
| } |
| |
| define i32 @test52(i32 %X) { |
| ; CHECK-LABEL: @test52( |
| ; CHECK-NEXT: [[SUB:%.*]] = sub i32 126, [[X:%.*]] |
| ; CHECK-NEXT: [[RES:%.*]] = and i32 [[SUB]], 127 |
| ; CHECK-NEXT: ret i32 [[RES]] |
| ; |
| %sub = sub i32 254, %X |
| %res = and i32 %sub, 127 |
| ret i32 %res |
| } |
| |
| define <2 x i1> @test53(<2 x i1> %A, <2 x i1> %B) { |
| ; CHECK-LABEL: @test53( |
| ; CHECK-NEXT: [[SUB:%.*]] = xor <2 x i1> [[B:%.*]], [[A:%.*]] |
| ; CHECK-NEXT: ret <2 x i1> [[SUB]] |
| ; |
| %sub = sub <2 x i1> %A, %B |
| ret <2 x i1> %sub |
| } |
| |
| define i32 @test54(i1 %C) { |
| ; CHECK-LABEL: @test54( |
| ; CHECK-NEXT: [[V:%.*]] = select i1 [[C:%.*]], i32 -877, i32 113 |
| ; CHECK-NEXT: ret i32 [[V]] |
| ; |
| %A = select i1 %C, i32 1000, i32 10 |
| %V = sub i32 123, %A |
| ret i32 %V |
| } |
| |
| define <2 x i32> @test54vec(i1 %C) { |
| ; CHECK-LABEL: @test54vec( |
| ; CHECK-NEXT: [[V:%.*]] = select i1 [[C:%.*]], <2 x i32> <i32 -877, i32 -877>, <2 x i32> <i32 113, i32 113> |
| ; CHECK-NEXT: ret <2 x i32> [[V]] |
| ; |
| %A = select i1 %C, <2 x i32> <i32 1000, i32 1000>, <2 x i32> <i32 10, i32 10> |
| %V = sub <2 x i32> <i32 123, i32 123>, %A |
| ret <2 x i32> %V |
| } |
| |
| define <2 x i32> @test54vec2(i1 %C) { |
| ; CHECK-LABEL: @test54vec2( |
| ; CHECK-NEXT: [[V:%.*]] = select i1 [[C:%.*]], <2 x i32> <i32 -877, i32 -2167>, <2 x i32> <i32 113, i32 303> |
| ; CHECK-NEXT: ret <2 x i32> [[V]] |
| ; |
| %A = select i1 %C, <2 x i32> <i32 1000, i32 2500>, <2 x i32> <i32 10, i32 30> |
| %V = sub <2 x i32> <i32 123, i32 333>, %A |
| ret <2 x i32> %V |
| } |
| |
| define i32 @test55(i1 %which) { |
| ; CHECK-LABEL: @test55( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br i1 [[WHICH:%.*]], label [[FINAL:%.*]], label [[DELAY:%.*]] |
| ; CHECK: delay: |
| ; CHECK-NEXT: br label [[FINAL]] |
| ; CHECK: final: |
| ; CHECK-NEXT: [[A_NEG:%.*]] = phi i32 [ -877, [[ENTRY:%.*]] ], [ 113, [[DELAY]] ] |
| ; CHECK-NEXT: ret i32 [[A_NEG]] |
| ; |
| entry: |
| br i1 %which, label %final, label %delay |
| |
| delay: |
| br label %final |
| |
| final: |
| %A = phi i32 [ 1000, %entry ], [ 10, %delay ] |
| %value = sub i32 123, %A |
| ret i32 %value |
| } |
| |
| define <2 x i32> @test55vec(i1 %which) { |
| ; CHECK-LABEL: @test55vec( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br i1 [[WHICH:%.*]], label [[FINAL:%.*]], label [[DELAY:%.*]] |
| ; CHECK: delay: |
| ; CHECK-NEXT: br label [[FINAL]] |
| ; CHECK: final: |
| ; CHECK-NEXT: [[A_NEG:%.*]] = phi <2 x i32> [ <i32 -877, i32 -877>, [[ENTRY:%.*]] ], [ <i32 113, i32 113>, [[DELAY]] ] |
| ; CHECK-NEXT: ret <2 x i32> [[A_NEG]] |
| ; |
| entry: |
| br i1 %which, label %final, label %delay |
| |
| delay: |
| br label %final |
| |
| final: |
| %A = phi <2 x i32> [ <i32 1000, i32 1000>, %entry ], [ <i32 10, i32 10>, %delay ] |
| %value = sub <2 x i32> <i32 123, i32 123>, %A |
| ret <2 x i32> %value |
| } |
| |
| define <2 x i32> @test55vec2(i1 %which) { |
| ; CHECK-LABEL: @test55vec2( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br i1 [[WHICH:%.*]], label [[FINAL:%.*]], label [[DELAY:%.*]] |
| ; CHECK: delay: |
| ; CHECK-NEXT: br label [[FINAL]] |
| ; CHECK: final: |
| ; CHECK-NEXT: [[A_NEG:%.*]] = phi <2 x i32> [ <i32 -877, i32 -2167>, [[ENTRY:%.*]] ], [ <i32 113, i32 303>, [[DELAY]] ] |
| ; CHECK-NEXT: ret <2 x i32> [[A_NEG]] |
| ; |
| entry: |
| br i1 %which, label %final, label %delay |
| |
| delay: |
| br label %final |
| |
| final: |
| %A = phi <2 x i32> [ <i32 1000, i32 2500>, %entry ], [ <i32 10, i32 30>, %delay ] |
| %value = sub <2 x i32> <i32 123, i32 333>, %A |
| ret <2 x i32> %value |
| } |
| |
| define i32 @test56(i32 %A, i32 %B) { |
| ; CHECK-LABEL: @test56( |
| ; CHECK-NEXT: [[Y:%.*]] = sub i32 0, [[B:%.*]] |
| ; CHECK-NEXT: ret i32 [[Y]] |
| ; |
| %X = add i32 %A, %B |
| %Y = sub i32 %A, %X |
| ret i32 %Y |
| } |
| |
| define i32 @test57(i32 %A, i32 %B) { |
| ; CHECK-LABEL: @test57( |
| ; CHECK-NEXT: [[Y:%.*]] = sub i32 0, [[B:%.*]] |
| ; CHECK-NEXT: ret i32 [[Y]] |
| ; |
| %X = add i32 %B, %A |
| %Y = sub i32 %A, %X |
| ret i32 %Y |
| } |
| |
| @dummy_global1 = external global i8* |
| @dummy_global2 = external global i8* |
| |
| define i64 @test58([100 x [100 x i8]]* %foo, i64 %i, i64 %j) { |
| ; CHECK-LABEL: @test58( |
| ; CHECK-NEXT: [[TMP1:%.*]] = sub i64 [[I:%.*]], [[J:%.*]] |
| ; CHECK-NEXT: ret i64 [[TMP1]] |
| ; |
| %gep1 = getelementptr inbounds [100 x [100 x i8]], [100 x [100 x i8]]* %foo, i64 0, i64 42, i64 %i |
| %gep2 = getelementptr inbounds [100 x [100 x i8]], [100 x [100 x i8]]* %foo, i64 0, i64 42, i64 %j |
| %cast1 = ptrtoint i8* %gep1 to i64 |
| %cast2 = ptrtoint i8* %gep2 to i64 |
| %sub = sub i64 %cast1, %cast2 |
| ret i64 %sub |
| } |
| |
| define i64 @test59([100 x [100 x i8]]* %foo, i64 %i) { |
| ; CHECK-LABEL: @test59( |
| ; CHECK-NEXT: [[GEP1:%.*]] = getelementptr inbounds [100 x [100 x i8]], [100 x [100 x i8]]* [[FOO:%.*]], i64 0, i64 42, i64 [[I:%.*]] |
| ; CHECK-NEXT: [[GEP2:%.*]] = getelementptr inbounds [100 x [100 x i8]], [100 x [100 x i8]]* [[FOO]], i64 0, i64 42, i64 0 |
| ; CHECK-NEXT: store i8* [[GEP1]], i8** @dummy_global1, align 8 |
| ; CHECK-NEXT: store i8* [[GEP2]], i8** @dummy_global2, align 8 |
| ; CHECK-NEXT: ret i64 [[I]] |
| ; |
| ; gep1 and gep2 have more than one uses |
| %gep1 = getelementptr inbounds [100 x [100 x i8]], [100 x [100 x i8]]* %foo, i64 0, i64 42, i64 %i |
| %gep2 = getelementptr inbounds [100 x [100 x i8]], [100 x [100 x i8]]* %foo, i64 0, i64 42, i64 0 |
| %cast1 = ptrtoint i8* %gep1 to i64 |
| %cast2 = ptrtoint i8* %gep2 to i64 |
| %sub = sub i64 %cast1, %cast2 |
| store i8* %gep1, i8** @dummy_global1 |
| store i8* %gep2, i8** @dummy_global2 |
| ret i64 %sub |
| } |
| |
| define i64 @test60([100 x [100 x i8]]* %foo, i64 %i, i64 %j) { |
| ; CHECK-LABEL: @test60( |
| ; CHECK-NEXT: [[GEP1:%.*]] = getelementptr inbounds [100 x [100 x i8]], [100 x [100 x i8]]* [[FOO:%.*]], i64 0, i64 [[J:%.*]], i64 [[I:%.*]] |
| ; CHECK-NEXT: [[GEP2:%.*]] = getelementptr inbounds [100 x [100 x i8]], [100 x [100 x i8]]* [[FOO]], i64 0, i64 42, i64 0 |
| ; CHECK-NEXT: [[CAST1:%.*]] = ptrtoint i8* [[GEP1]] to i64 |
| ; CHECK-NEXT: [[CAST2:%.*]] = ptrtoint i8* [[GEP2]] to i64 |
| ; CHECK-NEXT: [[SUB:%.*]] = sub i64 [[CAST1]], [[CAST2]] |
| ; CHECK-NEXT: store i8* [[GEP1]], i8** @dummy_global1, align 8 |
| ; CHECK-NEXT: ret i64 [[SUB]] |
| ; |
| ; gep1 has a non-constant index and more than one uses. Shouldn't duplicate the arithmetic. |
| %gep1 = getelementptr inbounds [100 x [100 x i8]], [100 x [100 x i8]]* %foo, i64 0, i64 %j, i64 %i |
| %gep2 = getelementptr inbounds [100 x [100 x i8]], [100 x [100 x i8]]* %foo, i64 0, i64 42, i64 0 |
| %cast1 = ptrtoint i8* %gep1 to i64 |
| %cast2 = ptrtoint i8* %gep2 to i64 |
| %sub = sub i64 %cast1, %cast2 |
| store i8* %gep1, i8** @dummy_global1 |
| ret i64 %sub |
| } |
| |
| define i64 @test61([100 x [100 x i8]]* %foo, i64 %i, i64 %j) { |
| ; CHECK-LABEL: @test61( |
| ; CHECK-NEXT: [[GEP1:%.*]] = getelementptr inbounds [100 x [100 x i8]], [100 x [100 x i8]]* [[FOO:%.*]], i64 0, i64 42, i64 0 |
| ; CHECK-NEXT: [[GEP2:%.*]] = getelementptr inbounds [100 x [100 x i8]], [100 x [100 x i8]]* [[FOO]], i64 0, i64 [[J:%.*]], i64 [[I:%.*]] |
| ; CHECK-NEXT: [[CAST1:%.*]] = ptrtoint i8* [[GEP1]] to i64 |
| ; CHECK-NEXT: [[CAST2:%.*]] = ptrtoint i8* [[GEP2]] to i64 |
| ; CHECK-NEXT: [[SUB:%.*]] = sub i64 [[CAST1]], [[CAST2]] |
| ; CHECK-NEXT: store i8* [[GEP2]], i8** @dummy_global2, align 8 |
| ; CHECK-NEXT: ret i64 [[SUB]] |
| ; |
| ; gep2 has a non-constant index and more than one uses. Shouldn't duplicate the arithmetic. |
| %gep1 = getelementptr inbounds [100 x [100 x i8]], [100 x [100 x i8]]* %foo, i64 0, i64 42, i64 0 |
| %gep2 = getelementptr inbounds [100 x [100 x i8]], [100 x [100 x i8]]* %foo, i64 0, i64 %j, i64 %i |
| %cast1 = ptrtoint i8* %gep1 to i64 |
| %cast2 = ptrtoint i8* %gep2 to i64 |
| %sub = sub i64 %cast1, %cast2 |
| store i8* %gep2, i8** @dummy_global2 |
| ret i64 %sub |
| } |
| |
| define i32 @test62(i32 %A) { |
| ; CHECK-LABEL: @test62( |
| ; CHECK-NEXT: [[B_NEG:%.*]] = mul i32 [[A:%.*]], -2 |
| ; CHECK-NEXT: [[C:%.*]] = add i32 [[B_NEG]], 2 |
| ; CHECK-NEXT: ret i32 [[C]] |
| ; |
| %B = sub i32 1, %A |
| %C = shl i32 %B, 1 |
| ret i32 %C |
| } |
| |
| define <2 x i32> @test62vec(<2 x i32> %A) { |
| ; CHECK-LABEL: @test62vec( |
| ; CHECK-NEXT: [[B_NEG:%.*]] = mul <2 x i32> [[A:%.*]], <i32 -2, i32 -2> |
| ; CHECK-NEXT: [[C:%.*]] = add <2 x i32> [[B_NEG]], <i32 2, i32 2> |
| ; CHECK-NEXT: ret <2 x i32> [[C]] |
| ; |
| %B = sub <2 x i32> <i32 1, i32 1>, %A |
| %C = shl <2 x i32> %B, <i32 1, i32 1> |
| ret <2 x i32> %C |
| } |
| |
| define i32 @test63(i32 %A) { |
| ; CHECK-LABEL: @test63( |
| ; CHECK-NEXT: [[B_NEG_NEG:%.*]] = shl i32 [[A:%.*]], 1 |
| ; CHECK-NEXT: ret i32 [[B_NEG_NEG]] |
| ; |
| %B = sub i32 1, %A |
| %C = shl i32 %B, 1 |
| %D = sub i32 2, %C |
| ret i32 %D |
| } |
| |
| define <2 x i32> @test63vec(<2 x i32> %A) { |
| ; CHECK-LABEL: @test63vec( |
| ; CHECK-NEXT: [[B_NEG_NEG:%.*]] = shl <2 x i32> [[A:%.*]], <i32 1, i32 1> |
| ; CHECK-NEXT: ret <2 x i32> [[B_NEG_NEG]] |
| ; |
| %B = sub <2 x i32> <i32 1, i32 1>, %A |
| %C = shl <2 x i32> %B, <i32 1, i32 1> |
| %D = sub <2 x i32> <i32 2, i32 2>, %C |
| ret <2 x i32> %D |
| } |
| |
| define i32 @test64(i32 %x) { |
| ; CHECK-LABEL: @test64( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 [[X:%.*]], 255 |
| ; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 [[X]], i32 255 |
| ; CHECK-NEXT: [[DOTNEG:%.*]] = add nsw i32 [[TMP2]], 1 |
| ; CHECK-NEXT: ret i32 [[DOTNEG]] |
| ; |
| %1 = xor i32 %x, -1 |
| %2 = icmp sgt i32 %1, -256 |
| %3 = select i1 %2, i32 %1, i32 -256 |
| %res = sub i32 0, %3 |
| ret i32 %res |
| } |
| |
| define i32 @test65(i32 %x) { |
| ; CHECK-LABEL: @test65( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i32 [[X:%.*]], -256 |
| ; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 [[X]], i32 -256 |
| ; CHECK-NEXT: [[DOTNEG:%.*]] = add i32 [[TMP2]], 1 |
| ; CHECK-NEXT: ret i32 [[DOTNEG]] |
| ; |
| %1 = xor i32 %x, -1 |
| %2 = icmp slt i32 %1, 255 |
| %3 = select i1 %2, i32 %1, i32 255 |
| %res = sub i32 0, %3 |
| ret i32 %res |
| } |
| |
| define i32 @test66(i32 %x) { |
| ; CHECK-LABEL: @test66( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 [[X:%.*]], -101 |
| ; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 [[X]], i32 -101 |
| ; CHECK-NEXT: [[DOTNEG:%.*]] = add nuw i32 [[TMP2]], 1 |
| ; CHECK-NEXT: ret i32 [[DOTNEG]] |
| ; |
| %1 = xor i32 %x, -1 |
| %2 = icmp ugt i32 %1, 100 |
| %3 = select i1 %2, i32 %1, i32 100 |
| %res = sub i32 0, %3 |
| ret i32 %res |
| } |
| |
| define i32 @test67(i32 %x) { |
| ; CHECK-LABEL: @test67( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ugt i32 [[X:%.*]], 100 |
| ; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 [[X]], i32 100 |
| ; CHECK-NEXT: [[DOTNEG:%.*]] = add i32 [[TMP2]], 1 |
| ; CHECK-NEXT: ret i32 [[DOTNEG]] |
| ; |
| %1 = xor i32 %x, -1 |
| %2 = icmp ult i32 %1, -101 |
| %3 = select i1 %2, i32 %1, i32 -101 |
| %res = sub i32 0, %3 |
| ret i32 %res |
| } |
| |
| ; Check splat vectors too |
| define <2 x i32> @test68(<2 x i32> %x) { |
| ; CHECK-LABEL: @test68( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt <2 x i32> [[X:%.*]], <i32 255, i32 255> |
| ; CHECK-NEXT: [[TMP2:%.*]] = select <2 x i1> [[TMP1]], <2 x i32> [[X]], <2 x i32> <i32 255, i32 255> |
| ; CHECK-NEXT: [[DOTNEG:%.*]] = add nsw <2 x i32> [[TMP2]], <i32 1, i32 1> |
| ; CHECK-NEXT: ret <2 x i32> [[DOTNEG]] |
| ; |
| %1 = xor <2 x i32> %x, <i32 -1, i32 -1> |
| %2 = icmp sgt <2 x i32> %1, <i32 -256, i32 -256> |
| %3 = select <2 x i1> %2, <2 x i32> %1, <2 x i32> <i32 -256, i32 -256> |
| %res = sub <2 x i32> zeroinitializer, %3 |
| ret <2 x i32> %res |
| } |
| |
| ; And non-splat constant vectors. |
| define <2 x i32> @test69(<2 x i32> %x) { |
| ; CHECK-LABEL: @test69( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt <2 x i32> [[X:%.*]], <i32 255, i32 127> |
| ; CHECK-NEXT: [[TMP2:%.*]] = select <2 x i1> [[TMP1]], <2 x i32> [[X]], <2 x i32> <i32 255, i32 127> |
| ; CHECK-NEXT: [[DOTNEG:%.*]] = add <2 x i32> [[TMP2]], <i32 1, i32 1> |
| ; CHECK-NEXT: ret <2 x i32> [[DOTNEG]] |
| ; |
| %1 = xor <2 x i32> %x, <i32 -1, i32 -1> |
| %2 = icmp sgt <2 x i32> %1, <i32 -256, i32 -128> |
| %3 = select <2 x i1> %2, <2 x i32> %1, <2 x i32> <i32 -256, i32 -128> |
| %res = sub <2 x i32> zeroinitializer, %3 |
| ret <2 x i32> %res |
| } |
| |
| ; Check (X | Y) - Y --> X & ~Y when Y is a constant |
| define i32 @test70(i32 %A) { |
| ; CHECK-LABEL: @test70( |
| ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[A:%.*]], -124 |
| ; CHECK-NEXT: ret i32 [[TMP1]] |
| ; |
| %B = or i32 %A, 123 |
| %C = sub i32 %B, 123 |
| ret i32 %C |
| } |
| |
| ; Check (X | Y) - Y --> (X | Y) ^ Y doesn't happen where (X | Y) has multiple uses |
| define i32 @test71(i32 %A, i32 %B) { |
| ; CHECK-LABEL: @test71( |
| ; CHECK-NEXT: [[C:%.*]] = or i32 [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: [[D:%.*]] = sub i32 [[C]], [[B]] |
| ; CHECK-NEXT: [[E:%.*]] = mul i32 [[C]], [[D]] |
| ; CHECK-NEXT: ret i32 [[E]] |
| ; |
| %C = or i32 %A, %B |
| %D = sub i32 %C, %B |
| %E = mul i32 %C, %D |
| ret i32 %E |
| } |
| |
| ; Check (X | Y) - Y --> X & ~Y where X and Y are vectors |
| define <2 x i32> @test72(<2 x i32> %A, <2 x i32> %B) { |
| ; CHECK-LABEL: @test72( |
| ; CHECK-NEXT: [[B_NOT:%.*]] = xor <2 x i32> [[B:%.*]], <i32 -1, i32 -1> |
| ; CHECK-NEXT: [[D:%.*]] = and <2 x i32> [[B_NOT]], [[A:%.*]] |
| ; CHECK-NEXT: ret <2 x i32> [[D]] |
| ; |
| %C = or <2 x i32> %A, %B |
| %D = sub <2 x i32> %C, %B |
| ret <2 x i32> %D |
| } |
| |
| ; Check reversing sub operands won't trigger (X | Y) - Y --> X & ~Y |
| define i32 @test73(i32 %A, i32 %B) { |
| ; CHECK-LABEL: @test73( |
| ; CHECK-NEXT: [[C:%.*]] = or i32 [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: [[D:%.*]] = sub i32 [[B]], [[C]] |
| ; CHECK-NEXT: ret i32 [[D]] |
| ; |
| %C = or i32 %A, %B |
| %D = sub i32 %B, %C |
| ret i32 %D |
| } |
| |
| define i32 @nsw_inference1(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @nsw_inference1( |
| ; CHECK-NEXT: [[X2:%.*]] = or i32 [[X:%.*]], 1024 |
| ; CHECK-NEXT: [[Y2:%.*]] = and i32 [[Y:%.*]], 1 |
| ; CHECK-NEXT: [[Z:%.*]] = sub nuw nsw i32 [[X2]], [[Y2]] |
| ; CHECK-NEXT: ret i32 [[Z]] |
| ; |
| %x2 = or i32 %x, 1024 |
| %y2 = and i32 %y, 1 |
| %z = sub i32 %x2, %y2 |
| ret i32 %z |
| } |
| |
| define i32 @nsw_inference2(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @nsw_inference2( |
| ; CHECK-NEXT: [[X2:%.*]] = and i32 [[X:%.*]], -1025 |
| ; CHECK-NEXT: [[Y2:%.*]] = or i32 [[Y:%.*]], -2 |
| ; CHECK-NEXT: [[Z:%.*]] = sub nsw i32 [[X2]], [[Y2]] |
| ; CHECK-NEXT: ret i32 [[Z]] |
| ; |
| %x2 = and i32 %x, -1025 |
| %y2 = or i32 %y, -2 |
| %z = sub i32 %x2, %y2 |
| ret i32 %z |
| } |
| |
| define i8 @test74(i8 %x, i8 %y) { |
| ; CHECK-LABEL: @test74( |
| ; CHECK-NEXT: [[T0:%.*]] = and i8 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: call void @use8(i8 [[T0]]) |
| ; CHECK-NEXT: [[T1:%.*]] = sub i8 [[X]], [[T0]] |
| ; CHECK-NEXT: ret i8 [[T1]] |
| ; |
| %t0 = and i8 %x, %y |
| call void @use8(i8 %t0) |
| %t1 = sub i8 %x, %t0 |
| ret i8 %t1 |
| } |
| |
| define i8 @test75(i8 %x) { |
| ; CHECK-LABEL: @test75( |
| ; CHECK-NEXT: [[T0:%.*]] = and i8 [[X:%.*]], -8 |
| ; CHECK-NEXT: call void @use8(i8 [[T0]]) |
| ; CHECK-NEXT: [[T1:%.*]] = and i8 [[X]], 7 |
| ; CHECK-NEXT: ret i8 [[T1]] |
| ; |
| %t0 = and i8 %x, -8 |
| call void @use8(i8 %t0) |
| %t1 = sub i8 %x, %t0 |
| ret i8 %t1 |
| } |
| |
| ; ((w-x) + y) - z --> (w+y) - (x+z) |
| |
| define i8 @sub_add_sub_reassoc(i8 %w, i8 %x, i8 %y, i8 %z) { |
| ; CHECK-LABEL: @sub_add_sub_reassoc( |
| ; CHECK-NEXT: [[TMP1:%.*]] = add i8 [[W:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = add i8 [[X:%.*]], [[Z:%.*]] |
| ; CHECK-NEXT: [[S2:%.*]] = sub i8 [[TMP1]], [[TMP2]] |
| ; CHECK-NEXT: ret i8 [[S2]] |
| ; |
| %s1 = sub i8 %w, %x |
| %a = add i8 %s1, %y |
| %s2 = sub i8 %a, %z |
| ret i8 %s2 |
| } |
| |
| ; vectors work too. |
| |
| define <2 x i8> @sub_add_sub_reassoc_commute(<2 x i8> %w, <2 x i8> %x, <2 x i8> %y, <2 x i8> %z) { |
| ; CHECK-LABEL: @sub_add_sub_reassoc_commute( |
| ; CHECK-NEXT: [[D:%.*]] = sdiv <2 x i8> [[Y:%.*]], <i8 42, i8 -42> |
| ; CHECK-NEXT: [[TMP1:%.*]] = add <2 x i8> [[D]], [[W:%.*]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = add <2 x i8> [[X:%.*]], [[Z:%.*]] |
| ; CHECK-NEXT: [[S2:%.*]] = sub <2 x i8> [[TMP1]], [[TMP2]] |
| ; CHECK-NEXT: ret <2 x i8> [[S2]] |
| ; |
| %d = sdiv <2 x i8> %y, <i8 42, i8 -42> ; thwart complexity-based canonicalization |
| %s1 = sub <2 x i8> %w, %x |
| %a = add <2 x i8> %d, %s1 |
| %s2 = sub <2 x i8> %a, %z |
| ret <2 x i8> %s2 |
| } |
| |
| ; (v-w) + (x-y) - z --> (v+x) - (w+y+z) |
| |
| define i8 @sub_add_sub_reassoc_twice(i8 %v, i8 %w, i8 %x, i8 %y, i8 %z) { |
| ; CHECK-LABEL: @sub_add_sub_reassoc_twice( |
| ; CHECK-NEXT: [[TMP1:%.*]] = add i8 [[W:%.*]], [[Z:%.*]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = add i8 [[X:%.*]], [[V:%.*]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = add i8 [[TMP1]], [[Y:%.*]] |
| ; CHECK-NEXT: [[S3:%.*]] = sub i8 [[TMP2]], [[TMP3]] |
| ; CHECK-NEXT: ret i8 [[S3]] |
| ; |
| %s1 = sub i8 %v, %w |
| %s2 = sub i8 %x, %y |
| %a = add i8 %s1, %s2 |
| %s3 = sub i8 %a, %z |
| ret i8 %s3 |
| } |
| |
| ; negative test - uses |
| |
| define i8 @sub_add_sub_reassoc_use1(i8 %w, i8 %x, i8 %y, i8 %z) { |
| ; CHECK-LABEL: @sub_add_sub_reassoc_use1( |
| ; CHECK-NEXT: [[S1:%.*]] = sub i8 [[W:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: call void @use8(i8 [[S1]]) |
| ; CHECK-NEXT: [[A:%.*]] = add i8 [[S1]], [[Y:%.*]] |
| ; CHECK-NEXT: [[S2:%.*]] = sub i8 [[A]], [[Z:%.*]] |
| ; CHECK-NEXT: ret i8 [[S2]] |
| ; |
| %s1 = sub i8 %w, %x |
| call void @use8(i8 %s1) |
| %a = add i8 %s1, %y |
| %s2 = sub i8 %a, %z |
| ret i8 %s2 |
| } |
| |
| ; negative test - uses |
| |
| define i8 @sub_add_sub_reassoc_use2(i8 %w, i8 %x, i8 %y, i8 %z) { |
| ; CHECK-LABEL: @sub_add_sub_reassoc_use2( |
| ; CHECK-NEXT: [[S1:%.*]] = sub i8 [[W:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: [[A:%.*]] = add i8 [[S1]], [[Y:%.*]] |
| ; CHECK-NEXT: call void @use8(i8 [[A]]) |
| ; CHECK-NEXT: [[S2:%.*]] = sub i8 [[A]], [[Z:%.*]] |
| ; CHECK-NEXT: ret i8 [[S2]] |
| ; |
| %s1 = sub i8 %w, %x |
| %a = add i8 %s1, %y |
| call void @use8(i8 %a) |
| %s2 = sub i8 %a, %z |
| ret i8 %s2 |
| } |
| |
| define i8 @sub_mask_lowbits(i8 %x) { |
| ; CHECK-LABEL: @sub_mask_lowbits( |
| ; CHECK-NEXT: [[A1:%.*]] = add i8 [[X:%.*]], -108 |
| ; CHECK-NEXT: [[R:%.*]] = and i8 [[A1]], -4 |
| ; CHECK-NEXT: ret i8 [[R]] |
| ; |
| %a1 = add i8 %x, 148 ; 0x94 |
| %a2 = and i8 %x, 3 |
| %r = sub i8 %a1, %a2 |
| ret i8 %r |
| } |
| |
| ; Negative test - low-bit mask must not overlap with offset |
| |
| define i8 @sub_not_mask_lowbits(i8 %x) { |
| ; CHECK-LABEL: @sub_not_mask_lowbits( |
| ; CHECK-NEXT: [[A1:%.*]] = add i8 [[X:%.*]], 4 |
| ; CHECK-NEXT: [[A2:%.*]] = and i8 [[X]], 7 |
| ; CHECK-NEXT: [[R:%.*]] = sub i8 [[A1]], [[A2]] |
| ; CHECK-NEXT: ret i8 [[R]] |
| ; |
| %a1 = add i8 %x, 4 |
| %a2 = and i8 %x, 7 |
| %r = sub i8 %a1, %a2 |
| ret i8 %r |
| } |
| |
| define <2 x i8> @sub_mask_lowbits_splat_extra_use(<2 x i8> %x, <2 x i8>* %p) { |
| ; CHECK-LABEL: @sub_mask_lowbits_splat_extra_use( |
| ; CHECK-NEXT: [[A1:%.*]] = add <2 x i8> [[X:%.*]], <i8 -64, i8 -64> |
| ; CHECK-NEXT: [[A2:%.*]] = and <2 x i8> [[X]], <i8 10, i8 10> |
| ; CHECK-NEXT: store <2 x i8> [[A2]], <2 x i8>* [[P:%.*]], align 2 |
| ; CHECK-NEXT: [[R:%.*]] = and <2 x i8> [[A1]], <i8 -11, i8 -11> |
| ; CHECK-NEXT: ret <2 x i8> [[R]] |
| ; |
| %a1 = add <2 x i8> %x, <i8 192, i8 192> ; 0xc0 |
| %a2 = and <2 x i8> %x, <i8 10, i8 10> ; 0x0a |
| store <2 x i8> %a2, <2 x i8>* %p |
| %r = sub <2 x i8> %a1, %a2 |
| ret <2 x i8> %r |
| } |
| |
| define i16 @sub_nsw_mul_nsw(i16 %x, i16 %y) { |
| ; CHECK-LABEL: @sub_nsw_mul_nsw( |
| ; CHECK-NEXT: [[TMP1:%.*]] = sub nsw i16 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = shl nsw i16 [[TMP1]], 3 |
| ; CHECK-NEXT: ret i16 [[R]] |
| ; |
| %x8 = mul nsw i16 %x, 8 |
| %y8 = mul nsw i16 %y, 8 |
| %r = sub nsw i16 %x8, %y8 |
| ret i16 %r |
| } |
| |
| define i16 @sub_nuw_mul_nsw(i16 %x, i16 %y) { |
| ; CHECK-LABEL: @sub_nuw_mul_nsw( |
| ; CHECK-NEXT: [[TMP1:%.*]] = sub i16 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = shl i16 [[TMP1]], 2 |
| ; CHECK-NEXT: ret i16 [[R]] |
| ; |
| %x8 = mul nsw i16 %x, 4 |
| %y8 = mul nsw i16 %y, 4 |
| %r = sub nuw i16 %x8, %y8 |
| ret i16 %r |
| } |
| |
| define i16 @sub_mul_nsw(i16 %x, i16 %y) { |
| ; CHECK-LABEL: @sub_mul_nsw( |
| ; CHECK-NEXT: [[TMP1:%.*]] = sub i16 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = shl i16 [[TMP1]], 4 |
| ; CHECK-NEXT: ret i16 [[R]] |
| ; |
| %x8 = mul nsw i16 %x, 16 |
| %y8 = mul nsw i16 %y, 16 |
| %r = sub i16 %x8, %y8 |
| ret i16 %r |
| } |
| |
| define i16 @sub_nsw_mul_nuw(i16 %x, i16 %y) { |
| ; CHECK-LABEL: @sub_nsw_mul_nuw( |
| ; CHECK-NEXT: [[TMP1:%.*]] = sub i16 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = shl i16 [[TMP1]], 3 |
| ; CHECK-NEXT: ret i16 [[R]] |
| ; |
| %x8 = mul nuw i16 %x, 8 |
| %y8 = mul nuw i16 %y, 8 |
| %r = sub nsw i16 %x8, %y8 |
| ret i16 %r |
| } |
| |
| define i16 @sub_nuw_mul_nuw(i16 %x, i16 %y) { |
| ; CHECK-LABEL: @sub_nuw_mul_nuw( |
| ; CHECK-NEXT: [[TMP1:%.*]] = sub nuw i16 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = shl nuw i16 [[TMP1]], 4 |
| ; CHECK-NEXT: ret i16 [[R]] |
| ; |
| %x8 = mul nuw i16 %x, 16 |
| %y8 = mul nuw i16 %y, 16 |
| %r = sub nuw i16 %x8, %y8 |
| ret i16 %r |
| } |
| |
| define i16 @sub_mul_nuw(i16 %x, i16 %y) { |
| ; CHECK-LABEL: @sub_mul_nuw( |
| ; CHECK-NEXT: [[TMP1:%.*]] = sub i16 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = shl i16 [[TMP1]], 5 |
| ; CHECK-NEXT: ret i16 [[R]] |
| ; |
| %x8 = mul nuw i16 %x, 32 |
| %y8 = mul nuw i16 %y, 32 |
| %r = sub i16 %x8, %y8 |
| ret i16 %r |
| } |
| define i32 @and_test(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @and_test( |
| ; CHECK-NEXT: [[R:%.*]] = and i32 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %a = add i32 %x, %y |
| %o = or i32 %x, %y |
| %r = sub i32 %a, %o |
| ret i32 %r |
| } |
| |
| define i32 @and_test2(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @and_test2( |
| ; CHECK-NEXT: [[R:%.*]] = and i32 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %a = add i32 %x, %y |
| %o = or i32 %y, %x |
| %r = sub i32 %a, %o |
| ret i32 %r |
| } |
| |
| define i32 @and_test3(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @and_test3( |
| ; CHECK-NEXT: [[R:%.*]] = and i32 [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %a = add i32 %y, %x |
| %o = or i32 %x, %y |
| %r = sub i32 %a, %o |
| ret i32 %r |
| } |
| |
| |
| define <2 x i8> @and_vec(<2 x i8> %X, <2 x i8> %Y) { |
| ; CHECK-LABEL: @and_vec( |
| ; CHECK-NEXT: [[R:%.*]] = and <2 x i8> [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: ret <2 x i8> [[R]] |
| ; |
| %a = add <2 x i8> %X, %Y |
| %o = or <2 x i8> %X, %Y |
| %r = sub <2 x i8> %a, %o |
| ret <2 x i8> %r |
| } |
| |
| define i32 @or_test(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @or_test( |
| ; CHECK-NEXT: [[R:%.*]] = or i32 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %a = add i32 %x, %y |
| %b = and i32 %x, %y |
| %r = sub i32 %a, %b |
| ret i32 %r |
| } |
| |
| define i32 @or_test2(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @or_test2( |
| ; CHECK-NEXT: [[R:%.*]] = or i32 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %a = add i32 %x, %y |
| %b = and i32 %y, %x |
| %r = sub i32 %a, %b |
| ret i32 %r |
| } |
| |
| define i32 @or_test3(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @or_test3( |
| ; CHECK-NEXT: [[R:%.*]] = or i32 [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: ret i32 [[R]] |
| ; |
| %a = add i32 %y, %x |
| %b = and i32 %x, %y |
| %r = sub i32 %a, %b |
| ret i32 %r |
| } |
| |
| define <2 x i8> @or_vec(<2 x i8> %X, <2 x i8> %Y) { |
| ; CHECK-LABEL: @or_vec( |
| ; CHECK-NEXT: [[R:%.*]] = or <2 x i8> [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: ret <2 x i8> [[R]] |
| ; |
| %a = add <2 x i8> %X, %Y |
| %b = and <2 x i8> %X, %Y |
| %r = sub <2 x i8> %a, %b |
| ret <2 x i8> %r |
| } |
| |
| define i32 @pr51584(i32 %a, i32 %b) { |
| ; CHECK-LABEL: @pr51584( |
| ; CHECK-NEXT: [[TMP1:%.*]] = add i32 [[B:%.*]], [[A:%.*]] |
| ; CHECK-NEXT: [[DOTNEG:%.*]] = sub i32 -11, [[TMP1]] |
| ; CHECK-NEXT: ret i32 [[DOTNEG]] |
| ; |
| %sub = sub i32 0, %a |
| %add = add nsw i32 11, %b |
| %sub1 = sub i32 %sub, %add |
| ret i32 %sub1 |
| } |