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3ebb05d9a6
type's bitwidth matches the (allocated) size of the alloca. This severely pessimizes vector scalar replacement when the only vector type being used is something like <3 x float> on x86 or ARM whose allocated size matches a <4 x float>. I hope to fix some of the flawed assumptions about allocated size throughout scalar replacement and reenable this in most cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133338 91177308-0d34-0410-b5e6-96231b3b80d8
65 lines
2.2 KiB
LLVM
65 lines
2.2 KiB
LLVM
; RUN: opt < %s -S -scalarrepl | FileCheck %s
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; RUN: opt < %s -S -scalarrepl-ssa | 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-i64:64:64-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"
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target triple = "x86_64-apple-macosx10.7.0"
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%0 = type { <2 x float>, float }
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%struct.PointC3 = type { %struct.array }
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%struct.Point_3 = type { %struct.PointC3 }
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%struct.array = type { [3 x float], [4 x i8] }
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; CHECK: main
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; CHECK-NOT: alloca
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; CHECK: %[[A:[a-z0-9]*]] = and i128
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; CHECK: %[[B:[a-z0-9]*]] = trunc i128 %[[A]] to i32
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define void @main() uwtable ssp {
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entry:
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%ref.tmp2 = alloca %0, align 16
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%tmpcast = bitcast %0* %ref.tmp2 to %struct.Point_3*
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%0 = getelementptr %0* %ref.tmp2, i64 0, i32 0
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store <2 x float> zeroinitializer, <2 x float>* %0, align 16
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%1 = getelementptr inbounds %struct.Point_3* %tmpcast, i64 0, i32 0
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%base.i.i.i = getelementptr inbounds %struct.PointC3* %1, i64 0, i32 0
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%arrayidx.i.i.i.i = getelementptr inbounds %struct.array* %base.i.i.i, i64 0, i32 0, i64 0
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%tmp5.i.i = load float* %arrayidx.i.i.i.i, align 4
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ret void
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}
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; CHECK: test1
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; CHECK-NOT: alloca
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; CHECK: %[[A:[a-z0-9]*]] = and i128
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; CHECK: %[[B:[a-z0-9]*]] = trunc i128 %[[A]] to i32
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define void @test1() uwtable ssp {
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entry:
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%ref.tmp2 = alloca {<2 x float>, float}, align 16
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%tmpcast = bitcast {<2 x float>, float}* %ref.tmp2 to float*
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%0 = getelementptr {<2 x float>, float}* %ref.tmp2, i64 0, i32 0
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store <2 x float> zeroinitializer, <2 x float>* %0, align 16
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%tmp5.i.i = load float* %tmpcast, align 4
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ret void
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}
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; CHECK: test2
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; CHECK-NOT: alloca
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; CHECK: and i128
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; CHECK: or i128
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; CHECK: trunc i128
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; CHECK-NOT: insertelement
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; CHECK-NOT: extractelement
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define float @test2() uwtable ssp {
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entry:
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%ref.tmp2 = alloca {<2 x float>, float}, align 16
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%tmpcast = bitcast {<2 x float>, float}* %ref.tmp2 to float*
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%tmpcast2 = getelementptr {<2 x float>, float}* %ref.tmp2, i64 0, i32 1
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%0 = getelementptr {<2 x float>, float}* %ref.tmp2, i64 0, i32 0
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store <2 x float> zeroinitializer, <2 x float>* %0, align 16
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store float 1.0, float* %tmpcast2, align 4
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%r1 = load float* %tmpcast, align 4
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%r2 = load float* %tmpcast2, align 4
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%r = fadd float %r1, %r2
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ret float %r
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}
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