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llvm / llvm / 2b38b84a12ff96d6862b7927f92cbdae77653deb / . / test / Transforms / InstCombine / sub.ll
blob: 6e1f34868f2cc4e67c321c40581de65c29516661 [file] [log] [blame]
; 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: [[D1:%.*]] = sub i32 [[C:%.*]], [[B:%.*]]
; CHECK-NEXT: [[E:%.*]] = add i32 [[D1]], [[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: [[C:%.*]] = lshr i32 [[A:%.*]], 31
; CHECK-NEXT: ret i32 [[C]]
;
%B = ashr i32 %A, 31
%C = sub i32 0, %B
ret i32 %C
}
define i32 @test13(i32 %A) {
; CHECK-LABEL: @test13(
; CHECK-NEXT: [[C:%.*]] = ashr i32 [[A:%.*]], 31
; CHECK-NEXT: ret i32 [[C]]
;
%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: [[C:%.*]] = lshr <2 x i32> [[A:%.*]], <i32 31, i32 31>
; CHECK-NEXT: ret <2 x i32> [[C]]
;
%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: [[C:%.*]] = ashr <2 x i32> [[A:%.*]], <i32 31, i32 31>
; CHECK-NEXT: ret <2 x i32> [[C]]
;
%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: [[Y:%.*]] = sdiv i32 [[A:%.*]], -1123
; CHECK-NEXT: ret i32 [[Y]]
;
%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
;
%tmp.4 = shl i64 %Y, 2
%tmp.12 = shl i64 %Y, 2
%tmp.8 = sub i64 %tmp.4, %tmp.12
ret i64 %tmp.8
}
define i1 @test20(i32 %g, i32 %h) {
; CHECK-LABEL: @test20(
; CHECK-NEXT: [[TMP_4:%.*]] = icmp ne i32 [[H:%.*]], 0
; CHECK-NEXT: ret i1 [[TMP_4]]
;
%tmp.2 = sub i32 %g, %h
%tmp.4 = icmp ne i32 %tmp.2, %g
ret i1 %tmp.4
}
define i1 @test21(i32 %g, i32 %h) {
; CHECK-LABEL: @test21(
; CHECK-NEXT: [[TMP_4:%.*]] = icmp ne i32 [[H:%.*]], 0
; CHECK-NEXT: ret i1 [[TMP_4]]
;
%tmp.2 = sub i32 %g, %h
%tmp.4 = icmp ne i32 %tmp.2, %g
ret i1 %tmp.4
}
; PR2298
define zeroext i1 @test22(i32 %a, i32 %b) nounwind {
; CHECK-LABEL: @test22(
; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: ret i1 [[TMP5]]
;
%tmp2 = sub i32 0, %a
%tmp4 = sub i32 0, %b
%tmp5 = icmp eq i32 %tmp2, %tmp4
ret i1 %tmp5
}
; rdar://7362831
define i32 @test23(i8* %P, i64 %A){
; CHECK-LABEL: @test23(
; CHECK-NEXT: [[TMP1:%.*]] = trunc i64 [[A:%.*]] to i32
; CHECK-NEXT: ret i32 [[TMP1]]
;
%B = getelementptr inbounds i8, i8* %P, i64 %A
%C = ptrtoint i8* %B to i64
%D = trunc i64 %C to i32
%E = ptrtoint i8* %P to i64
%F = trunc i64 %E to i32
%G = sub i32 %D, %F
ret i32 %G
}
define i8 @test23_as1(i8 addrspace(1)* %P, i16 %A) {
; CHECK-LABEL: @test23_as1(
; CHECK-NEXT: [[TMP1:%.*]] = trunc i16 [[A:%.*]] to i8
; CHECK-NEXT: ret i8 [[TMP1]]
;
%B = getelementptr inbounds i8, i8 addrspace(1)* %P, i16 %A
%C = ptrtoint i8 addrspace(1)* %B to i16
%D = trunc i16 %C to i8
%E = ptrtoint i8 addrspace(1)* %P to i16
%F = trunc i16 %E to i8
%G = sub i8 %D, %F
ret i8 %G
}
define i64 @test24(i8* %P, i64 %A){
; CHECK-LABEL: @test24(
; CHECK-NEXT: ret i64 [[A:%.*]]
;
%B = getelementptr inbounds i8, i8* %P, i64 %A
%C = ptrtoint i8* %B to i64
%E = ptrtoint i8* %P to i64
%G = sub i64 %C, %E
ret i64 %G
}
define i16 @test24_as1(i8 addrspace(1)* %P, i16 %A) {
; CHECK-LABEL: @test24_as1(
; CHECK-NEXT: ret i16 [[A:%.*]]
;
%B = getelementptr inbounds i8, i8 addrspace(1)* %P, i16 %A
%C = ptrtoint i8 addrspace(1)* %B to i16
%E = ptrtoint i8 addrspace(1)* %P to i16
%G = sub i16 %C, %E
ret i16 %G
}
define i64 @test24a(i8* %P, i64 %A){
; CHECK-LABEL: @test24a(
; CHECK-NEXT: [[DIFF_NEG:%.*]] = sub i64 0, [[A:%.*]]
; CHECK-NEXT: ret i64 [[DIFF_NEG]]
;
%B = getelementptr inbounds i8, i8* %P, i64 %A
%C = ptrtoint i8* %B to i64
%E = ptrtoint i8* %P to i64
%G = sub i64 %E, %C
ret i64 %G
}
define i16 @test24a_as1(i8 addrspace(1)* %P, i16 %A) {
; CHECK-LABEL: @test24a_as1(
; CHECK-NEXT: [[DIFF_NEG:%.*]] = sub i16 0, [[A:%.*]]
; CHECK-NEXT: ret i16 [[DIFF_NEG]]
;
%B = getelementptr inbounds i8, i8 addrspace(1)* %P, i16 %A
%C = ptrtoint i8 addrspace(1)* %B to i16
%E = ptrtoint i8 addrspace(1)* %P to i16
%G = sub i16 %E, %C
ret i16 %G
}
@Arr = external global [42 x i16]
define i64 @test24b(i8* %P, i64 %A){
; CHECK-LABEL: @test24b(
; CHECK-NEXT: [[B_IDX:%.*]] = shl nuw i64 [[A:%.*]], 1
; CHECK-NEXT: ret i64 [[B_IDX]]
;
%B = getelementptr inbounds [42 x i16], [42 x i16]* @Arr, i64 0, i64 %A
%C = ptrtoint i16* %B to i64
%G = sub i64 %C, ptrtoint ([42 x i16]* @Arr to i64)
ret i64 %G
}
define i64 @test25(i8* %P, i64 %A){
; CHECK-LABEL: @test25(
; CHECK-NEXT: [[B_IDX:%.*]] = shl nuw i64 [[A:%.*]], 1
; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[B_IDX]], -84
; CHECK-NEXT: ret i64 [[TMP1]]
;
%B = getelementptr inbounds [42 x i16], [42 x i16]* @Arr, i64 0, i64 %A
%C = ptrtoint i16* %B to i64
%G = sub i64 %C, ptrtoint (i16* getelementptr ([42 x i16], [42 x i16]* @Arr, i64 1, i64 0) to i64)
ret i64 %G
}
@Arr_as1 = external addrspace(1) global [42 x i16]
define i16 @test25_as1(i8 addrspace(1)* %P, i64 %A) {
; CHECK-LABEL: @test25_as1(
; CHECK-NEXT: [[TMP1:%.*]] = trunc i64 [[A:%.*]] to i16
; CHECK-NEXT: [[B_IDX:%.*]] = shl nuw i16 [[TMP1]], 1
; CHECK-NEXT: [[TMP2:%.*]] = add i16 [[B_IDX]], -84
; CHECK-NEXT: ret i16 [[TMP2]]
;
%B = getelementptr inbounds [42 x i16], [42 x i16] addrspace(1)* @Arr_as1, i64 0, i64 %A
%C = ptrtoint i16 addrspace(1)* %B to i16
%G = sub i16 %C, ptrtoint (i16 addrspace(1)* getelementptr ([42 x i16], [42 x i16] addrspace(1)* @Arr_as1, i64 1, i64 0) to i16)
ret i16 %G
}
define i32 @test26(i32 %x) {
; CHECK-LABEL: @test26(
; CHECK-NEXT: [[NEG:%.*]] = shl i32 -3, [[X:%.*]]
; CHECK-NEXT: ret i32 [[NEG]]
;
%shl = shl i32 3, %x
%neg = sub i32 0, %shl
ret i32 %neg
}
define i32 @test27(i32 %x, i32 %y) {
; CHECK-LABEL: @test27(
; CHECK-NEXT: [[TMP1:%.*]] = shl i32 [[Y:%.*]], 3
; CHECK-NEXT: [[SUB:%.*]] = add i32 [[TMP1]], [[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: [[TMP1:%.*]] = mul <2 x i32> [[Y:%.*]], <i32 8, i32 6>
; CHECK-NEXT: [[SUB:%.*]] = add <2 x i32> [[TMP1]], [[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: [[TMP1:%.*]] = shl <2 x i32> [[Y:%.*]], <i32 3, i32 3>
; CHECK-NEXT: [[SUB:%.*]] = add <2 x i32> [[TMP1]], [[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: [[TMP1:%.*]] = mul <2 x i32> [[Y:%.*]], <i32 8, i32 -8>
; CHECK-NEXT: [[SUB:%.*]] = add <2 x i32> [[TMP1]], [[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: [[TMP1:%.*]] = shl i32 [[Y:%.*]], 3
; CHECK-NEXT: [[SUB:%.*]] = add i32 [[TMP1]], [[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: [[TMP1:%.*]] = mul <2 x i32> [[Y:%.*]], <i32 8, i32 6>
; CHECK-NEXT: [[SUB:%.*]] = add <2 x i32> [[TMP1]], [[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: [[TMP1:%.*]] = shl <2 x i32> [[Y:%.*]], <i32 3, i32 3>
; CHECK-NEXT: [[SUB:%.*]] = add <2 x i32> [[TMP1]], [[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: [[TMP1:%.*]] = mul <2 x i32> [[Y:%.*]], <i32 8, i32 -8>
; CHECK-NEXT: [[SUB:%.*]] = add <2 x i32> [[TMP1]], [[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 i64 @test29(i8* %foo, i64 %i, i64 %j) {
; CHECK-LABEL: @test29(
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 [[I:%.*]], [[J:%.*]]
; CHECK-NEXT: ret i64 [[TMP1]]
;
%gep1 = getelementptr inbounds i8, i8* %foo, i64 %i
%gep2 = getelementptr inbounds i8, i8* %foo, i64 %j
%cast1 = ptrtoint i8* %gep1 to i64
%cast2 = ptrtoint i8* %gep2 to i64
%sub = sub i64 %cast1, %cast2
ret i64 %sub
}
define i64 @test30(i8* %foo, i64 %i, i64 %j) {
; CHECK-LABEL: @test30(
; CHECK-NEXT: [[GEP1_IDX:%.*]] = shl nuw i64 [[I:%.*]], 2
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 [[GEP1_IDX]], [[J:%.*]]
; CHECK-NEXT: ret i64 [[TMP1]]
;
%bit = bitcast i8* %foo to i32*
%gep1 = getelementptr inbounds i32, i32* %bit, i64 %i
%gep2 = getelementptr inbounds i8, i8* %foo, i64 %j
%cast1 = ptrtoint i32* %gep1 to i64
%cast2 = ptrtoint i8* %gep2 to i64
%sub = sub i64 %cast1, %cast2
ret i64 %sub
}
define i16 @test30_as1(i8 addrspace(1)* %foo, i16 %i, i16 %j) {
; CHECK-LABEL: @test30_as1(
; CHECK-NEXT: [[GEP1_IDX:%.*]] = shl nuw i16 [[I:%.*]], 2
; CHECK-NEXT: [[TMP1:%.*]] = sub i16 [[GEP1_IDX]], [[J:%.*]]
; CHECK-NEXT: ret i16 [[TMP1]]
;
%bit = bitcast i8 addrspace(1)* %foo to i32 addrspace(1)*
%gep1 = getelementptr inbounds i32, i32 addrspace(1)* %bit, i16 %i
%gep2 = getelementptr inbounds i8, i8 addrspace(1)* %foo, i16 %j
%cast1 = ptrtoint i32 addrspace(1)* %gep1 to i16
%cast2 = ptrtoint i8 addrspace(1)* %gep2 to i16
%sub = sub i16 %cast1, %cast2
ret i16 %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: [[SUB:%.*]] = sext <2 x i1> [[TMP1]] to <2 x i32>
; CHECK-NEXT: ret <2 x i32> [[SUB]]
;
%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: [[SUB:%.*]] = sext i1 [[TMP1]] to i32
; CHECK-NEXT: ret i32 [[SUB]]
;
%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 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> [[A:%.*]], [[B:%.*]]
; 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:%.*]] = phi i32 [ -877, [[ENTRY:%.*]] ], [ 113, [[DELAY]] ]
; CHECK-NEXT: ret i32 [[A]]
;
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:%.*]] = phi <2 x i32> [ <i32 -877, i32 -877>, [[ENTRY:%.*]] ], [ <i32 113, i32 113>, [[DELAY]] ]
; CHECK-NEXT: ret <2 x i32> [[A]]
;
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:%.*]] = phi <2 x i32> [ <i32 -877, i32 -2167>, [[ENTRY:%.*]] ], [ <i32 113, i32 303>, [[DELAY]] ]
; CHECK-NEXT: ret <2 x i32> [[A]]
;
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) {
; Note the reassociate pass and another instcombine pass will further optimize this to
; "%sub = i64 %i, %j, ret i64 %sub"
; gep1 and gep2 have only one use
; CHECK-LABEL: @test58(
; CHECK-NEXT: [[GEP2_OFFS:%.*]] = add i64 [[J:%.*]], 4200
; CHECK-NEXT: [[GEP1_OFFS:%.*]] = add i64 [[I:%.*]], 4200
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 [[GEP1_OFFS]], [[GEP2_OFFS]]
; 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:%.*]] = shl i32 [[A:%.*]], 1
; CHECK-NEXT: [[C:%.*]] = sub i32 2, [[B]]
; 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:%.*]] = shl <2 x i32> [[A:%.*]], <i32 1, i32 1>
; CHECK-NEXT: [[C:%.*]] = sub <2 x i32> <i32 2, i32 2>, [[B]]
; 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:%.*]] = shl i32 [[A:%.*]], 1
; CHECK-NEXT: ret i32 [[B]]
;
%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:%.*]] = shl <2 x i32> [[A:%.*]], <i32 1, i32 1>
; CHECK-NEXT: ret <2 x i32> [[B]]
;
%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
}
; FIXME: Transform (neg (max ~X, C)) -> ((min X, ~C) + 1). Same for min.
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: [[RES:%.*]] = add nsw i32 [[TMP2]], 1
; CHECK-NEXT: ret i32 [[RES]]
;
%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: [[RES:%.*]] = add i32 [[TMP2]], 1
; CHECK-NEXT: ret i32 [[RES]]
;
%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: [[RES:%.*]] = add nuw i32 [[TMP2]], 1
; CHECK-NEXT: ret i32 [[RES]]
;
%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: [[RES:%.*]] = add i32 [[TMP2]], 1
; CHECK-NEXT: ret i32 [[RES]]
;
%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: [[RES:%.*]] = add nsw <2 x i32> [[TMP2]], <i32 1, i32 1>
; CHECK-NEXT: ret <2 x i32> [[RES]]
;
%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: [[RES:%.*]] = add <2 x i32> [[TMP2]], <i32 1, i32 1>
; CHECK-NEXT: ret <2 x i32> [[RES]]
;
%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
}
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
}