1 ; RUN: opt < %s -instcombine -S | FileCheck %s
2 target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64"
3 @C.0.1248 = internal constant [128 x float] [ float -1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00 ], align 32 ; <[128 x float]*> [#uses=1]
5 define float @test1(i32 %hash, float %x, float %y, float %z, float %w) {
7 %lookupTable = alloca [128 x float], align 16 ; <[128 x float]*> [#uses=5]
8 %lookupTable1 = bitcast [128 x float]* %lookupTable to i8* ; <i8*> [#uses=1]
9 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %lookupTable1, i8* bitcast ([128 x float]* @C.0.1248 to i8*), i64 512, i32 16, i1 false)
11 ; CHECK-LABEL: @test1(
13 ; CHECK-NOT: call{{.*}}@llvm.memcpy
15 %tmp3 = shl i32 %hash, 2 ; <i32> [#uses=1]
16 %tmp5 = and i32 %tmp3, 124 ; <i32> [#uses=4]
17 %tmp753 = getelementptr [128 x float]* %lookupTable, i32 0, i32 %tmp5 ; <float*> [#uses=1]
18 %tmp9 = load float* %tmp753 ; <float> [#uses=1]
19 %tmp11 = fmul float %tmp9, %x ; <float> [#uses=1]
20 %tmp13 = fadd float %tmp11, 0.000000e+00 ; <float> [#uses=1]
21 %tmp17.sum52 = or i32 %tmp5, 1 ; <i32> [#uses=1]
22 %tmp1851 = getelementptr [128 x float]* %lookupTable, i32 0, i32 %tmp17.sum52 ; <float*> [#uses=1]
23 %tmp19 = load float* %tmp1851 ; <float> [#uses=1]
24 %tmp21 = fmul float %tmp19, %y ; <float> [#uses=1]
25 %tmp23 = fadd float %tmp21, %tmp13 ; <float> [#uses=1]
26 %tmp27.sum50 = or i32 %tmp5, 2 ; <i32> [#uses=1]
27 %tmp2849 = getelementptr [128 x float]* %lookupTable, i32 0, i32 %tmp27.sum50 ; <float*> [#uses=1]
28 %tmp29 = load float* %tmp2849 ; <float> [#uses=1]
29 %tmp31 = fmul float %tmp29, %z ; <float> [#uses=1]
30 %tmp33 = fadd float %tmp31, %tmp23 ; <float> [#uses=1]
31 %tmp37.sum48 = or i32 %tmp5, 3 ; <i32> [#uses=1]
32 %tmp3847 = getelementptr [128 x float]* %lookupTable, i32 0, i32 %tmp37.sum48 ; <float*> [#uses=1]
33 %tmp39 = load float* %tmp3847 ; <float> [#uses=1]
34 %tmp41 = fmul float %tmp39, %w ; <float> [#uses=1]
35 %tmp43 = fadd float %tmp41, %tmp33 ; <float> [#uses=1]
39 declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
41 %T = type { i8, [123 x i8] }
42 %U = type { i32, i32, i32, i32, i32 }
44 @G = constant %T {i8 1, [123 x i8] zeroinitializer }
45 @H = constant [2 x %U] zeroinitializer, align 16
47 define void @test2() {
50 %a = bitcast %T* %A to i8*
51 %b = bitcast %T* %B to i8*
53 ; CHECK-LABEL: @test2(
55 ; %A alloca is deleted
56 ; CHECK-NEXT: alloca [124 x i8]
57 ; CHECK-NEXT: getelementptr inbounds [124 x i8]*
59 ; use @G instead of %A
60 ; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %{{.*}}, i8* getelementptr inbounds (%T* @G, i64 0, i32 0)
61 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* bitcast (%T* @G to i8*), i64 124, i32 4, i1 false)
62 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %b, i8* %a, i64 124, i32 4, i1 false)
63 call void @bar(i8* %b)
67 declare void @bar(i8*)
70 ;; Should be able to eliminate the alloca.
71 define void @test3() {
73 %a = bitcast %T* %A to i8*
74 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* bitcast (%T* @G to i8*), i64 124, i32 4, i1 false)
75 call void @bar(i8* %a) readonly
76 ; CHECK-LABEL: @test3(
77 ; CHECK-NEXT: call void @bar(i8* getelementptr inbounds (%T* @G, i64 0, i32 0))
81 define void @test4() {
83 %a = bitcast %T* %A to i8*
84 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* bitcast (%T* @G to i8*), i64 124, i32 4, i1 false)
85 call void @baz(i8* byval %a)
86 ; CHECK-LABEL: @test4(
87 ; CHECK-NEXT: call void @baz(i8* byval getelementptr inbounds (%T* @G, i64 0, i32 0))
91 declare void @llvm.lifetime.start(i64, i8*)
92 define void @test5() {
94 %a = bitcast %T* %A to i8*
95 call void @llvm.lifetime.start(i64 -1, i8* %a)
96 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* bitcast (%T* @G to i8*), i64 124, i32 4, i1 false)
97 call void @baz(i8* byval %a)
98 ; CHECK-LABEL: @test5(
99 ; CHECK-NEXT: call void @baz(i8* byval getelementptr inbounds (%T* @G, i64 0, i32 0))
104 declare void @baz(i8* byval)
107 define void @test6() {
108 %A = alloca %U, align 16
109 %a = bitcast %U* %A to i8*
110 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* bitcast ([2 x %U]* @H to i8*), i64 20, i32 16, i1 false)
111 call void @bar(i8* %a) readonly
112 ; CHECK-LABEL: @test6(
113 ; CHECK-NEXT: call void @bar(i8* bitcast ([2 x %U]* @H to i8*))
117 define void @test7() {
118 %A = alloca %U, align 16
119 %a = bitcast %U* %A to i8*
120 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* bitcast (%U* getelementptr ([2 x %U]* @H, i64 0, i32 0) to i8*), i64 20, i32 4, i1 false)
121 call void @bar(i8* %a) readonly
122 ; CHECK-LABEL: @test7(
123 ; CHECK-NEXT: call void @bar(i8* bitcast ([2 x %U]* @H to i8*))
127 define void @test8() {
128 %A = alloca %U, align 16
129 %a = bitcast %U* %A to i8*
130 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* bitcast (%U* getelementptr ([2 x %U]* @H, i64 0, i32 1) to i8*), i64 20, i32 4, i1 false)
131 call void @bar(i8* %a) readonly
132 ; CHECK-LABEL: @test8(
138 define void @test9() {
139 %A = alloca %U, align 4
140 %a = bitcast %U* %A to i8*
141 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* bitcast (%U* getelementptr ([2 x %U]* @H, i64 0, i32 1) to i8*), i64 20, i32 4, i1 false)
142 call void @bar(i8* %a) readonly
143 ; CHECK-LABEL: @test9(
144 ; CHECK-NEXT: call void @bar(i8* bitcast (%U* getelementptr inbounds ([2 x %U]* @H, i64 0, i64 1) to i8*))