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be751cfe9c
copying VFP subregs. This exposed a bunch of dead code in the *spill-q.ll tests, so I tweaked those tests to keep that code from being optimized away. Radar 7872877. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104415 91177308-0d34-0410-b5e6-96231b3b80d8
44 lines
1.5 KiB
LLVM
44 lines
1.5 KiB
LLVM
; RUN: llc < %s -march=arm -mcpu=cortex-a8 | FileCheck %s
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; Radar 7872877
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define arm_apcscc void @test(float* %fltp, i32 %packedValue, float* %table) nounwind {
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entry:
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%0 = load float* %fltp
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%1 = insertelement <4 x float> undef, float %0, i32 0
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%2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> zeroinitializer
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%3 = shl i32 %packedValue, 16
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%4 = ashr i32 %3, 30
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%.sum = add i32 %4, 4
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%5 = getelementptr inbounds float* %table, i32 %.sum
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;CHECK: vldr.32 s
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%6 = load float* %5, align 4
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%tmp11 = insertelement <4 x float> undef, float %6, i32 0
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%7 = shl i32 %packedValue, 18
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%8 = ashr i32 %7, 30
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%.sum12 = add i32 %8, 4
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%9 = getelementptr inbounds float* %table, i32 %.sum12
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;CHECK: vldr.32 s
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%10 = load float* %9, align 4
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%tmp9 = insertelement <4 x float> %tmp11, float %10, i32 1
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%11 = shl i32 %packedValue, 20
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%12 = ashr i32 %11, 30
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%.sum13 = add i32 %12, 4
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%13 = getelementptr inbounds float* %table, i32 %.sum13
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;CHECK: vldr.32 s
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%14 = load float* %13, align 4
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%tmp7 = insertelement <4 x float> %tmp9, float %14, i32 2
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%15 = shl i32 %packedValue, 22
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%16 = ashr i32 %15, 30
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%.sum14 = add i32 %16, 4
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%17 = getelementptr inbounds float* %table, i32 %.sum14
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;CHECK: vldr.32 s
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%18 = load float* %17, align 4
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%tmp5 = insertelement <4 x float> %tmp7, float %18, i32 3
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%19 = fmul <4 x float> %tmp5, %2
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%20 = bitcast float* %fltp to i8*
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tail call void @llvm.arm.neon.vst1.v4f32(i8* %20, <4 x float> %19)
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ret void
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}
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declare void @llvm.arm.neon.vst1.v4f32(i8*, <4 x float>) nounwind
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