| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| |
| target datalayout = "e-p:64:64:64-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-n8:16:32:64" |
| target triple = "x86_64-apple-darwin10.0.0" |
| |
| ; Bitcasts between vectors and scalars are valid. |
| ; PR4487 |
| define i32 @test1(i64 %a) { |
| %t1 = bitcast i64 %a to <2 x i32> |
| %t2 = bitcast i64 %a to <2 x i32> |
| %t3 = xor <2 x i32> %t1, %t2 |
| %t4 = extractelement <2 x i32> %t3, i32 0 |
| ret i32 %t4 |
| |
| ; CHECK-LABEL: @test1( |
| ; CHECK: ret i32 0 |
| } |
| |
| ; Perform the bitwise logic in the source type of the operands to eliminate bitcasts. |
| |
| define <2 x i32> @xor_two_vector_bitcasts(<1 x i64> %a, <1 x i64> %b) { |
| %t1 = bitcast <1 x i64> %a to <2 x i32> |
| %t2 = bitcast <1 x i64> %b to <2 x i32> |
| %t3 = xor <2 x i32> %t1, %t2 |
| ret <2 x i32> %t3 |
| |
| ; CHECK-LABEL: @xor_two_vector_bitcasts( |
| ; CHECK-NEXT: %t31 = xor <1 x i64> %a, %b |
| ; CHECK-NEXT: %t3 = bitcast <1 x i64> %t31 to <2 x i32> |
| ; CHECK-NEXT: ret <2 x i32> %t3 |
| } |
| |
| ; Verify that 'xor' of vector and constant is done as a vector bitwise op before the bitcast. |
| |
| define <2 x i32> @xor_bitcast_vec_to_vec(<1 x i64> %a) { |
| %t1 = bitcast <1 x i64> %a to <2 x i32> |
| %t2 = xor <2 x i32> <i32 1, i32 2>, %t1 |
| ret <2 x i32> %t2 |
| |
| ; CHECK-LABEL: @xor_bitcast_vec_to_vec( |
| ; CHECK-NEXT: %t21 = xor <1 x i64> %a, <i64 8589934593> |
| ; CHECK-NEXT: %t2 = bitcast <1 x i64> %t21 to <2 x i32> |
| ; CHECK-NEXT: ret <2 x i32> %t2 |
| } |
| |
| ; Verify that 'and' of integer and constant is done as a vector bitwise op before the bitcast. |
| |
| define i64 @and_bitcast_vec_to_int(<2 x i32> %a) { |
| %t1 = bitcast <2 x i32> %a to i64 |
| %t2 = and i64 %t1, 3 |
| ret i64 %t2 |
| |
| ; CHECK-LABEL: @and_bitcast_vec_to_int( |
| ; CHECK-NEXT: %t21 = and <2 x i32> %a, <i32 3, i32 0> |
| ; CHECK-NEXT: %t2 = bitcast <2 x i32> %t21 to i64 |
| ; CHECK-NEXT: ret i64 %t2 |
| } |
| |
| ; Verify that 'or' of vector and constant is done as an integer bitwise op before the bitcast. |
| |
| define <2 x i32> @or_bitcast_int_to_vec(i64 %a) { |
| %t1 = bitcast i64 %a to <2 x i32> |
| %t2 = or <2 x i32> %t1, <i32 1, i32 2> |
| ret <2 x i32> %t2 |
| |
| ; CHECK-LABEL: @or_bitcast_int_to_vec( |
| ; CHECK-NEXT: %t21 = or i64 %a, 8589934593 |
| ; CHECK-NEXT: %t2 = bitcast i64 %t21 to <2 x i32> |
| ; CHECK-NEXT: ret <2 x i32> %t2 |
| } |
| |
| ; Optimize bitcasts that are extracting low element of vector. This happens |
| ; because of SRoA. |
| ; rdar://7892780 |
| define float @test2(<2 x float> %A, <2 x i32> %B) { |
| %tmp28 = bitcast <2 x float> %A to i64 ; <i64> [#uses=2] |
| %tmp23 = trunc i64 %tmp28 to i32 ; <i32> [#uses=1] |
| %tmp24 = bitcast i32 %tmp23 to float ; <float> [#uses=1] |
| |
| %tmp = bitcast <2 x i32> %B to i64 |
| %tmp2 = trunc i64 %tmp to i32 ; <i32> [#uses=1] |
| %tmp4 = bitcast i32 %tmp2 to float ; <float> [#uses=1] |
| |
| %add = fadd float %tmp24, %tmp4 |
| ret float %add |
| |
| ; CHECK-LABEL: @test2( |
| ; CHECK-NEXT: %tmp24 = extractelement <2 x float> %A, i32 0 |
| ; CHECK-NEXT: bitcast <2 x i32> %B to <2 x float> |
| ; CHECK-NEXT: %tmp4 = extractelement <2 x float> {{.*}}, i32 0 |
| ; CHECK-NEXT: %add = fadd float %tmp24, %tmp4 |
| ; CHECK-NEXT: ret float %add |
| } |
| |
| ; Optimize bitcasts that are extracting other elements of a vector. This |
| ; happens because of SRoA. |
| ; rdar://7892780 |
| define float @test3(<2 x float> %A, <2 x i64> %B) { |
| %tmp28 = bitcast <2 x float> %A to i64 |
| %tmp29 = lshr i64 %tmp28, 32 |
| %tmp23 = trunc i64 %tmp29 to i32 |
| %tmp24 = bitcast i32 %tmp23 to float |
| |
| %tmp = bitcast <2 x i64> %B to i128 |
| %tmp1 = lshr i128 %tmp, 64 |
| %tmp2 = trunc i128 %tmp1 to i32 |
| %tmp4 = bitcast i32 %tmp2 to float |
| |
| %add = fadd float %tmp24, %tmp4 |
| ret float %add |
| |
| ; CHECK-LABEL: @test3( |
| ; CHECK-NEXT: %tmp24 = extractelement <2 x float> %A, i32 1 |
| ; CHECK-NEXT: bitcast <2 x i64> %B to <4 x float> |
| ; CHECK-NEXT: %tmp4 = extractelement <4 x float> {{.*}}, i32 2 |
| ; CHECK-NEXT: %add = fadd float %tmp24, %tmp4 |
| ; CHECK-NEXT: ret float %add |
| } |
| |
| ; Both bitcasts are unnecessary; change the extractelement. |
| |
| define float @bitcast_extelt1(<2 x float> %A) { |
| %bc1 = bitcast <2 x float> %A to <2 x i32> |
| %ext = extractelement <2 x i32> %bc1, i32 0 |
| %bc2 = bitcast i32 %ext to float |
| ret float %bc2 |
| |
| ; CHECK-LABEL: @bitcast_extelt1( |
| ; CHECK-NEXT: %bc2 = extractelement <2 x float> %A, i32 0 |
| ; CHECK-NEXT: ret float %bc2 |
| } |
| |
| ; Second bitcast can be folded into the first. |
| |
| define i64 @bitcast_extelt2(<4 x float> %A) { |
| %bc1 = bitcast <4 x float> %A to <2 x double> |
| %ext = extractelement <2 x double> %bc1, i32 1 |
| %bc2 = bitcast double %ext to i64 |
| ret i64 %bc2 |
| |
| ; CHECK-LABEL: @bitcast_extelt2( |
| ; CHECK-NEXT: %bc = bitcast <4 x float> %A to <2 x i64> |
| ; CHECK-NEXT: %bc2 = extractelement <2 x i64> %bc, i32 1 |
| ; CHECK-NEXT: ret i64 %bc2 |
| } |
| |
| ; TODO: This should return %A. |
| |
| define <2 x i32> @bitcast_extelt3(<2 x i32> %A) { |
| %bc1 = bitcast <2 x i32> %A to <1 x i64> |
| %ext = extractelement <1 x i64> %bc1, i32 0 |
| %bc2 = bitcast i64 %ext to <2 x i32> |
| ret <2 x i32> %bc2 |
| |
| ; CHECK-LABEL: @bitcast_extelt3( |
| ; CHECK-NEXT: %bc1 = bitcast <2 x i32> %A to <1 x i64> |
| ; CHECK-NEXT: %ext = extractelement <1 x i64> %bc1, i32 0 |
| ; CHECK-NEXT: %bc2 = bitcast i64 %ext to <2 x i32> |
| ; CHECK-NEXT: ret <2 x i32> %bc2 |
| } |
| |
| ; Handle the case where the input is not a vector. |
| |
| define double @bitcast_extelt4(i128 %A) { |
| %bc1 = bitcast i128 %A to <2 x i64> |
| %ext = extractelement <2 x i64> %bc1, i32 0 |
| %bc2 = bitcast i64 %ext to double |
| ret double %bc2 |
| |
| ; CHECK-LABEL: @bitcast_extelt4( |
| ; CHECK-NEXT: %bc = bitcast i128 %A to <2 x double> |
| ; CHECK-NEXT: %bc2 = extractelement <2 x double> %bc, i32 0 |
| ; CHECK-NEXT: ret double %bc2 |
| } |
| |
| define <2 x i32> @test4(i32 %A, i32 %B){ |
| %tmp38 = zext i32 %A to i64 |
| %tmp32 = zext i32 %B to i64 |
| %tmp33 = shl i64 %tmp32, 32 |
| %ins35 = or i64 %tmp33, %tmp38 |
| %tmp43 = bitcast i64 %ins35 to <2 x i32> |
| ret <2 x i32> %tmp43 |
| ; CHECK-LABEL: @test4( |
| ; CHECK-NEXT: insertelement <2 x i32> undef, i32 %A, i32 0 |
| ; CHECK-NEXT: insertelement <2 x i32> {{.*}}, i32 %B, i32 1 |
| ; CHECK-NEXT: ret <2 x i32> |
| |
| } |
| |
| ; rdar://8360454 |
| define <2 x float> @test5(float %A, float %B) { |
| %tmp37 = bitcast float %A to i32 |
| %tmp38 = zext i32 %tmp37 to i64 |
| %tmp31 = bitcast float %B to i32 |
| %tmp32 = zext i32 %tmp31 to i64 |
| %tmp33 = shl i64 %tmp32, 32 |
| %ins35 = or i64 %tmp33, %tmp38 |
| %tmp43 = bitcast i64 %ins35 to <2 x float> |
| ret <2 x float> %tmp43 |
| ; CHECK-LABEL: @test5( |
| ; CHECK-NEXT: insertelement <2 x float> undef, float %A, i32 0 |
| ; CHECK-NEXT: insertelement <2 x float> {{.*}}, float %B, i32 1 |
| ; CHECK-NEXT: ret <2 x float> |
| } |
| |
| define <2 x float> @test6(float %A){ |
| %tmp23 = bitcast float %A to i32 ; <i32> [#uses=1] |
| %tmp24 = zext i32 %tmp23 to i64 ; <i64> [#uses=1] |
| %tmp25 = shl i64 %tmp24, 32 ; <i64> [#uses=1] |
| %mask20 = or i64 %tmp25, 1109917696 ; <i64> [#uses=1] |
| %tmp35 = bitcast i64 %mask20 to <2 x float> ; <<2 x float>> [#uses=1] |
| ret <2 x float> %tmp35 |
| ; CHECK-LABEL: @test6( |
| ; CHECK-NEXT: insertelement <2 x float> <float 4.200000e+01, float undef>, float %A, i32 1 |
| ; CHECK: ret |
| } |
| |
| define i64 @ISPC0(i64 %in) { |
| %out = and i64 %in, xor (i64 bitcast (<4 x i16> <i16 -1, i16 -1, i16 -1, i16 -1> to i64), i64 -1) |
| ret i64 %out |
| ; CHECK-LABEL: @ISPC0( |
| ; CHECK: ret i64 0 |
| } |
| |
| |
| define i64 @Vec2(i64 %in) { |
| %out = and i64 %in, xor (i64 bitcast (<4 x i16> <i16 0, i16 0, i16 0, i16 0> to i64), i64 0) |
| ret i64 %out |
| ; CHECK-LABEL: @Vec2( |
| ; CHECK: ret i64 0 |
| } |
| |
| define i64 @All11(i64 %in) { |
| %out = and i64 %in, xor (i64 bitcast (<2 x float> bitcast (i64 -1 to <2 x float>) to i64), i64 -1) |
| ret i64 %out |
| ; CHECK-LABEL: @All11( |
| ; CHECK: ret i64 0 |
| } |
| |
| |
| define i32 @All111(i32 %in) { |
| %out = and i32 %in, xor (i32 bitcast (<1 x float> bitcast (i32 -1 to <1 x float>) to i32), i32 -1) |
| ret i32 %out |
| ; CHECK-LABEL: @All111( |
| ; CHECK: ret i32 0 |
| } |
| |
| define <2 x i16> @BitcastInsert(i32 %a) { |
| %v = insertelement <1 x i32> undef, i32 %a, i32 0 |
| %r = bitcast <1 x i32> %v to <2 x i16> |
| ret <2 x i16> %r |
| ; CHECK-LABEL: @BitcastInsert( |
| ; CHECK: bitcast i32 %a to <2 x i16> |
| } |
| |
| ; PR17293 |
| define <2 x i64> @test7(<2 x i8*>* %arg) nounwind { |
| %cast = bitcast <2 x i8*>* %arg to <2 x i64>* |
| %load = load <2 x i64>, <2 x i64>* %cast, align 16 |
| ret <2 x i64> %load |
| ; CHECK: @test7 |
| ; CHECK: bitcast |
| ; CHECK: load |
| } |
| |
| define i8 @test8() { |
| %res = bitcast <8 x i1> <i1 true, i1 true, i1 false, i1 true, i1 false, i1 true, i1 false, i1 true> to i8 |
| ret i8 %res |
| ; CHECK: @test8 |
| ; CHECK: ret i8 -85 |
| } |