1 ; RUN: opt < %s -instcombine -S | FileCheck %s
3 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"
4 target triple = "x86_64-apple-darwin10.0.0"
6 ; Bitcasts between vectors and scalars are valid.
8 define i32 @test1(i64 %a) {
9 %t1 = bitcast i64 %a to <2 x i32>
10 %t2 = bitcast i64 %a to <2 x i32>
11 %t3 = xor <2 x i32> %t1, %t2
12 %t4 = extractelement <2 x i32> %t3, i32 0
15 ; CHECK-LABEL: @test1(
19 ; Optimize bitcasts that are extracting low element of vector. This happens
22 define float @test2(<2 x float> %A, <2 x i32> %B) {
23 %tmp28 = bitcast <2 x float> %A to i64 ; <i64> [#uses=2]
24 %tmp23 = trunc i64 %tmp28 to i32 ; <i32> [#uses=1]
25 %tmp24 = bitcast i32 %tmp23 to float ; <float> [#uses=1]
27 %tmp = bitcast <2 x i32> %B to i64
28 %tmp2 = trunc i64 %tmp to i32 ; <i32> [#uses=1]
29 %tmp4 = bitcast i32 %tmp2 to float ; <float> [#uses=1]
31 %add = fadd float %tmp24, %tmp4
34 ; CHECK-LABEL: @test2(
35 ; CHECK-NEXT: %tmp24 = extractelement <2 x float> %A, i32 0
36 ; CHECK-NEXT: bitcast <2 x i32> %B to <2 x float>
37 ; CHECK-NEXT: %tmp4 = extractelement <2 x float> {{.*}}, i32 0
38 ; CHECK-NEXT: %add = fadd float %tmp24, %tmp4
39 ; CHECK-NEXT: ret float %add
42 ; Optimize bitcasts that are extracting other elements of a vector. This
43 ; happens because of SRoA.
45 define float @test3(<2 x float> %A, <2 x i64> %B) {
46 %tmp28 = bitcast <2 x float> %A to i64
47 %tmp29 = lshr i64 %tmp28, 32
48 %tmp23 = trunc i64 %tmp29 to i32
49 %tmp24 = bitcast i32 %tmp23 to float
51 %tmp = bitcast <2 x i64> %B to i128
52 %tmp1 = lshr i128 %tmp, 64
53 %tmp2 = trunc i128 %tmp1 to i32
54 %tmp4 = bitcast i32 %tmp2 to float
56 %add = fadd float %tmp24, %tmp4
59 ; CHECK-LABEL: @test3(
60 ; CHECK-NEXT: %tmp24 = extractelement <2 x float> %A, i32 1
61 ; CHECK-NEXT: bitcast <2 x i64> %B to <4 x float>
62 ; CHECK-NEXT: %tmp4 = extractelement <4 x float> {{.*}}, i32 2
63 ; CHECK-NEXT: %add = fadd float %tmp24, %tmp4
64 ; CHECK-NEXT: ret float %add
68 define <2 x i32> @test4(i32 %A, i32 %B){
69 %tmp38 = zext i32 %A to i64
70 %tmp32 = zext i32 %B to i64
71 %tmp33 = shl i64 %tmp32, 32
72 %ins35 = or i64 %tmp33, %tmp38
73 %tmp43 = bitcast i64 %ins35 to <2 x i32>
75 ; CHECK-LABEL: @test4(
76 ; CHECK-NEXT: insertelement <2 x i32> undef, i32 %A, i32 0
77 ; CHECK-NEXT: insertelement <2 x i32> {{.*}}, i32 %B, i32 1
78 ; CHECK-NEXT: ret <2 x i32>
83 define <2 x float> @test5(float %A, float %B) {
84 %tmp37 = bitcast float %A to i32
85 %tmp38 = zext i32 %tmp37 to i64
86 %tmp31 = bitcast float %B to i32
87 %tmp32 = zext i32 %tmp31 to i64
88 %tmp33 = shl i64 %tmp32, 32
89 %ins35 = or i64 %tmp33, %tmp38
90 %tmp43 = bitcast i64 %ins35 to <2 x float>
91 ret <2 x float> %tmp43
92 ; CHECK-LABEL: @test5(
93 ; CHECK-NEXT: insertelement <2 x float> undef, float %A, i32 0
94 ; CHECK-NEXT: insertelement <2 x float> {{.*}}, float %B, i32 1
95 ; CHECK-NEXT: ret <2 x float>
98 define <2 x float> @test6(float %A){
99 %tmp23 = bitcast float %A to i32 ; <i32> [#uses=1]
100 %tmp24 = zext i32 %tmp23 to i64 ; <i64> [#uses=1]
101 %tmp25 = shl i64 %tmp24, 32 ; <i64> [#uses=1]
102 %mask20 = or i64 %tmp25, 1109917696 ; <i64> [#uses=1]
103 %tmp35 = bitcast i64 %mask20 to <2 x float> ; <<2 x float>> [#uses=1]
104 ret <2 x float> %tmp35
105 ; CHECK-LABEL: @test6(
106 ; CHECK-NEXT: insertelement <2 x float> <float 4.200000e+01, float undef>, float %A, i32 1
110 define i64 @ISPC0(i64 %in) {
111 %out = and i64 %in, xor (i64 bitcast (<4 x i16> <i16 -1, i16 -1, i16 -1, i16 -1> to i64), i64 -1)
113 ; CHECK-LABEL: @ISPC0(
118 define i64 @Vec2(i64 %in) {
119 %out = and i64 %in, xor (i64 bitcast (<4 x i16> <i16 0, i16 0, i16 0, i16 0> to i64), i64 0)
121 ; CHECK-LABEL: @Vec2(
125 define i64 @All11(i64 %in) {
126 %out = and i64 %in, xor (i64 bitcast (<2 x float> bitcast (i64 -1 to <2 x float>) to i64), i64 -1)
128 ; CHECK-LABEL: @All11(
133 define i32 @All111(i32 %in) {
134 %out = and i32 %in, xor (i32 bitcast (<1 x float> bitcast (i32 -1 to <1 x float>) to i32), i32 -1)
136 ; CHECK-LABEL: @All111(
140 define <2 x i16> @BitcastInsert(i32 %a) {
141 %v = insertelement <1 x i32> undef, i32 %a, i32 0
142 %r = bitcast <1 x i32> %v to <2 x i16>
144 ; CHECK-LABEL: @BitcastInsert(
145 ; CHECK: bitcast i32 %a to <2 x i16>
149 define <2 x i64> @test7(<2 x i8*>* %arg) nounwind {
150 %cast = bitcast <2 x i8*>* %arg to <2 x i64>*
151 %load = load <2 x i64>* %cast, align 16