forked from OSchip/llvm-project
260 lines
13 KiB
LLVM
260 lines
13 KiB
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
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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"
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@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]
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define float @test1(i32 %hash, float %x, float %y, float %z, float %w) {
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entry:
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%lookupTable = alloca [128 x float], align 16 ; <[128 x float]*> [#uses=5]
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%lookupTable1 = bitcast [128 x float]* %lookupTable to i8* ; <i8*> [#uses=1]
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %lookupTable1, i8* align 16 bitcast ([128 x float]* @C.0.1248 to i8*), i64 512, i1 false)
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; CHECK-LABEL: @test1(
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; CHECK-NOT: alloca
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; CHECK-NOT: call{{.*}}@llvm.memcpy
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%tmp3 = shl i32 %hash, 2 ; <i32> [#uses=1]
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%tmp5 = and i32 %tmp3, 124 ; <i32> [#uses=4]
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%tmp753 = getelementptr [128 x float], [128 x float]* %lookupTable, i32 0, i32 %tmp5 ; <float*> [#uses=1]
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%tmp9 = load float, float* %tmp753 ; <float> [#uses=1]
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%tmp11 = fmul float %tmp9, %x ; <float> [#uses=1]
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%tmp13 = fadd float %tmp11, 0.000000e+00 ; <float> [#uses=1]
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%tmp17.sum52 = or i32 %tmp5, 1 ; <i32> [#uses=1]
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%tmp1851 = getelementptr [128 x float], [128 x float]* %lookupTable, i32 0, i32 %tmp17.sum52 ; <float*> [#uses=1]
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%tmp19 = load float, float* %tmp1851 ; <float> [#uses=1]
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%tmp21 = fmul float %tmp19, %y ; <float> [#uses=1]
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%tmp23 = fadd float %tmp21, %tmp13 ; <float> [#uses=1]
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%tmp27.sum50 = or i32 %tmp5, 2 ; <i32> [#uses=1]
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%tmp2849 = getelementptr [128 x float], [128 x float]* %lookupTable, i32 0, i32 %tmp27.sum50 ; <float*> [#uses=1]
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%tmp29 = load float, float* %tmp2849 ; <float> [#uses=1]
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%tmp31 = fmul float %tmp29, %z ; <float> [#uses=1]
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%tmp33 = fadd float %tmp31, %tmp23 ; <float> [#uses=1]
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%tmp37.sum48 = or i32 %tmp5, 3 ; <i32> [#uses=1]
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%tmp3847 = getelementptr [128 x float], [128 x float]* %lookupTable, i32 0, i32 %tmp37.sum48 ; <float*> [#uses=1]
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%tmp39 = load float, float* %tmp3847 ; <float> [#uses=1]
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%tmp41 = fmul float %tmp39, %w ; <float> [#uses=1]
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%tmp43 = fadd float %tmp41, %tmp33 ; <float> [#uses=1]
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ret float %tmp43
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}
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) nounwind
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declare void @llvm.memcpy.p1i8.p0i8.i64(i8 addrspace(1)* nocapture, i8* nocapture, i64, i1) nounwind
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declare void @llvm.memcpy.p0i8.p1i8.i64(i8* nocapture, i8 addrspace(1)* nocapture, i64, i1) nounwind
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declare void @llvm.memcpy.p1i8.p1i8.i64(i8 addrspace(1)* nocapture, i8 addrspace(1)* nocapture, i64, i1) nounwind
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%T = type { i8, [123 x i8] }
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%U = type { i32, i32, i32, i32, i32 }
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@G = constant %T {i8 1, [123 x i8] zeroinitializer }
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@H = constant [2 x %U] zeroinitializer, align 16
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define void @test2() {
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%A = alloca %T
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%B = alloca %T
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%a = bitcast %T* %A to i8*
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%b = bitcast %T* %B to i8*
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; CHECK-LABEL: @test2(
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; %A alloca is deleted
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; CHECK-NEXT: alloca [124 x i8]
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; CHECK-NEXT: getelementptr inbounds [124 x i8], [124 x i8]*
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; use @G instead of %A
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 8 %{{.*}}, i8* align 16 getelementptr inbounds (%T, %T* @G, i64 0, i32 0)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %a, i8* align 4 bitcast (%T* @G to i8*), i64 124, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %b, i8* align 4 %a, i64 124, i1 false)
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call void @bar(i8* %b)
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ret void
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}
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define void @test2_no_null_opt() #0 {
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%A = alloca %T
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%B = alloca %T
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%a = bitcast %T* %A to i8*
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%b = bitcast %T* %B to i8*
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; CHECK-LABEL: @test2_no_null_opt(
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; %A alloca is deleted
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; CHECK-NEXT: alloca [124 x i8]
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; CHECK-NEXT: getelementptr inbounds [124 x i8], [124 x i8]*
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; use @G instead of %A
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %{{.*}}, i8* align 16 getelementptr inbounds (%T, %T* @G, i64 0, i32 0)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %a, i8* align 4 bitcast (%T* @G to i8*), i64 124, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %b, i8* align 4 %a, i64 124, i1 false)
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call void @bar(i8* %b)
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ret void
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}
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define void @test2_addrspacecast() {
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%A = alloca %T
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%B = alloca %T
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%a = addrspacecast %T* %A to i8 addrspace(1)*
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%b = addrspacecast %T* %B to i8 addrspace(1)*
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; CHECK-LABEL: @test2_addrspacecast(
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; %A alloca is deleted
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; This doesn't exactly match what test2 does, because folding the type
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; cast into the alloca doesn't work for the addrspacecast yet.
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; CHECK-NEXT: alloca [124 x i8]
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; CHECK-NEXT: getelementptr
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; CHECK-NEXT: addrspacecast
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; use @G instead of %A
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; CHECK-NEXT: call void @llvm.memcpy.p1i8.p1i8.i64(i8 addrspace(1)* align 4 %{{.*}},
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call void @llvm.memcpy.p1i8.p0i8.i64(i8 addrspace(1)* align 4 %a, i8* align 4 bitcast (%T* @G to i8*), i64 124, i1 false)
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call void @llvm.memcpy.p1i8.p1i8.i64(i8 addrspace(1)* align 4 %b, i8 addrspace(1)* align 4 %a, i64 124, i1 false)
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call void @bar_as1(i8 addrspace(1)* %b)
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ret void
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}
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declare void @bar(i8*)
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declare void @bar_as1(i8 addrspace(1)*)
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;; Should be able to eliminate the alloca.
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define void @test3() {
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%A = alloca %T
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%a = bitcast %T* %A to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %a, i8* align 4 bitcast (%T* @G to i8*), i64 124, i1 false)
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call void @bar(i8* %a) readonly
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: call void @bar(i8* getelementptr inbounds (%T, %T* @G, i64 0, i32 0))
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ret void
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}
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define void @test3_addrspacecast() {
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%A = alloca %T
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%a = bitcast %T* %A to i8*
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call void @llvm.memcpy.p0i8.p1i8.i64(i8* align 4 %a, i8 addrspace(1)* align 4 addrspacecast (%T* @G to i8 addrspace(1)*), i64 124, i1 false)
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call void @bar(i8* %a) readonly
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; CHECK-LABEL: @test3_addrspacecast(
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; CHECK-NEXT: call void @bar(i8* getelementptr inbounds (%T, %T* @G, i64 0, i32 0))
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ret void
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}
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define void @test4() {
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%A = alloca %T
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%a = bitcast %T* %A to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %a, i8* align 4 bitcast (%T* @G to i8*), i64 124, i1 false)
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call void @baz(i8* byval %a)
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; CHECK-LABEL: @test4(
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; CHECK-NEXT: call void @baz(i8* byval getelementptr inbounds (%T, %T* @G, i64 0, i32 0))
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ret void
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}
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declare void @llvm.lifetime.start.p0i8(i64, i8*)
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define void @test5() {
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%A = alloca %T
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%a = bitcast %T* %A to i8*
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call void @llvm.lifetime.start.p0i8(i64 -1, i8* %a)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %a, i8* align 4 bitcast (%T* @G to i8*), i64 124, i1 false)
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call void @baz(i8* byval %a)
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; CHECK-LABEL: @test5(
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; CHECK-NEXT: call void @baz(i8* byval getelementptr inbounds (%T, %T* @G, i64 0, i32 0))
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ret void
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}
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declare void @baz(i8* byval)
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define void @test6() {
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%A = alloca %U, align 16
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%a = bitcast %U* %A to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %a, i8* align 16 bitcast ([2 x %U]* @H to i8*), i64 20, i1 false)
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call void @bar(i8* %a) readonly
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; CHECK-LABEL: @test6(
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; CHECK-NEXT: call void @bar(i8* bitcast ([2 x %U]* @H to i8*))
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ret void
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}
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define void @test7() {
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%A = alloca %U, align 16
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%a = bitcast %U* %A to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %a, i8* align 4 bitcast (%U* getelementptr ([2 x %U], [2 x %U]* @H, i64 0, i32 0) to i8*), i64 20, i1 false)
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call void @bar(i8* %a) readonly
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; CHECK-LABEL: @test7(
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; CHECK-NEXT: call void @bar(i8* bitcast ([2 x %U]* @H to i8*))
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ret void
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}
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define void @test8() {
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%A = alloca %U, align 16
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%a = bitcast %U* %A to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %a, i8* align 4 bitcast (%U* getelementptr ([2 x %U], [2 x %U]* @H, i64 0, i32 1) to i8*), i64 20, i1 false)
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call void @bar(i8* %a) readonly
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; CHECK-LABEL: @test8(
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; CHECK: llvm.memcpy
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; CHECK: bar
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ret void
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}
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define void @test8_addrspacecast() {
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%A = alloca %U, align 16
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%a = bitcast %U* %A to i8*
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call void @llvm.memcpy.p0i8.p1i8.i64(i8* align 4 %a, i8 addrspace(1)* align 4 addrspacecast (%U* getelementptr ([2 x %U], [2 x %U]* @H, i64 0, i32 1) to i8 addrspace(1)*), i64 20, i1 false)
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call void @bar(i8* %a) readonly
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; CHECK-LABEL: @test8_addrspacecast(
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; CHECK: llvm.memcpy
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; CHECK: bar
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ret void
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}
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define void @test9() {
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%A = alloca %U, align 4
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%a = bitcast %U* %A to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %a, i8* align 4 bitcast (%U* getelementptr ([2 x %U], [2 x %U]* @H, i64 0, i32 1) to i8*), i64 20, i1 false)
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call void @bar(i8* %a) readonly
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; CHECK-LABEL: @test9(
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; CHECK-NEXT: call void @bar(i8* bitcast (%U* getelementptr inbounds ([2 x %U], [2 x %U]* @H, i64 0, i64 1) to i8*))
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ret void
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}
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define void @test9_addrspacecast() {
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%A = alloca %U, align 4
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%a = bitcast %U* %A to i8*
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call void @llvm.memcpy.p0i8.p1i8.i64(i8* align 4 %a, i8 addrspace(1)* align 4 addrspacecast (%U* getelementptr ([2 x %U], [2 x %U]* @H, i64 0, i32 1) to i8 addrspace(1)*), i64 20, i1 false)
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call void @bar(i8* %a) readonly
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; CHECK-LABEL: @test9_addrspacecast(
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; CHECK-NEXT: call void @bar(i8* bitcast (%U* getelementptr inbounds ([2 x %U], [2 x %U]* @H, i64 0, i64 1) to i8*))
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ret void
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}
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@bbb = local_unnamed_addr global [1000000 x i8] zeroinitializer, align 16
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@_ZL3KKK = internal unnamed_addr constant [3 x i8] c"\01\01\02", align 1
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; Should not replace alloca with global because of size mismatch.
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define void @test9_small_global() {
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; CHECK-LABEL: @test9_small_global(
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; CHECK-NOT: call void @llvm.memcpy.p0i8.p0i8.i64({{.*}}@bbb,{{.*}}@_ZL3KKK,
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; CHECK: alloca [1000000 x i8]
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entry:
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%cc = alloca [1000000 x i8], align 16
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%cc.0..sroa_idx = getelementptr inbounds [1000000 x i8], [1000000 x i8]* %cc, i64 0, i64 0
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%arraydecay = getelementptr inbounds [1000000 x i8], [1000000 x i8]* %cc, i32 0, i32 0
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %arraydecay, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @_ZL3KKK, i32 0, i32 0), i64 3, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 getelementptr inbounds ([1000000 x i8], [1000000 x i8]* @bbb, i32 0, i32 0), i8* align 16 %arraydecay, i64 1000000, i1 false)
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ret void
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}
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; Should replace alloca with global as they have exactly the same size.
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define void @test10_same_global() {
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; CHECK-LABEL: @test10_same_global(
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; CHECK-NOT: alloca
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; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64({{.*}}@bbb,{{.*}}@_ZL3KKK,{{.*}}, i64 3,
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entry:
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%cc = alloca [3 x i8], align 1
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%cc.0..sroa_idx = getelementptr inbounds [3 x i8], [3 x i8]* %cc, i64 0, i64 0
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%arraydecay = getelementptr inbounds [3 x i8], [3 x i8]* %cc, i32 0, i32 0
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %arraydecay, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @_ZL3KKK, i32 0, i32 0), i64 3, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* getelementptr inbounds ([1000000 x i8], [1000000 x i8]* @bbb, i32 0, i32 0), i8* %arraydecay, i64 3, i1 false)
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ret void
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}
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attributes #0 = { "null-pointer-is-valid"="true" }
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