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point values to their integer representation through the SSE intrinsic calls. This is the last part of a README.txt entry for which I have real world examples. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123206 91177308-0d34-0410-b5e6-96231b3b80d8
57 lines
2.2 KiB
LLVM
57 lines
2.2 KiB
LLVM
; RUN: opt < %s -constprop -S | FileCheck %s
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declare double @cos(double)
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declare double @sin(double)
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declare double @tan(double)
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declare double @sqrt(double)
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define double @T() {
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; CHECK: @T
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; CHECK-NOT: call
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; CHECK: ret
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%A = call double @cos(double 0.000000e+00)
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%B = call double @sin(double 0.000000e+00)
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%a = fadd double %A, %B
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%C = call double @tan(double 0.000000e+00)
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%b = fadd double %a, %C
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%D = call double @sqrt(double 4.000000e+00)
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%c = fadd double %b, %D
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ret double %c
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}
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define i1 @test_sse_cvt() nounwind readnone {
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; CHECK: @test_sse_cvt
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; CHECK-NOT: call
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; CHECK: ret i1 true
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entry:
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%i0 = tail call i32 @llvm.x86.sse.cvtss2si(<4 x float> <float 1.75, float undef, float undef, float undef>) nounwind
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%i1 = tail call i32 @llvm.x86.sse.cvttss2si(<4 x float> <float 1.75, float undef, float undef, float undef>) nounwind
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%i2 = tail call i64 @llvm.x86.sse.cvtss2si64(<4 x float> <float 1.75, float undef, float undef, float undef>) nounwind
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%i3 = tail call i64 @llvm.x86.sse.cvttss2si64(<4 x float> <float 1.75, float undef, float undef, float undef>) nounwind
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%i4 = call i32 @llvm.x86.sse2.cvtsd2si(<2 x double> <double 1.75, double undef>) nounwind
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%i5 = call i32 @llvm.x86.sse2.cvttsd2si(<2 x double> <double 1.75, double undef>) nounwind
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%i6 = call i64 @llvm.x86.sse2.cvtsd2si64(<2 x double> <double 1.75, double undef>) nounwind
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%i7 = call i64 @llvm.x86.sse2.cvttsd2si64(<2 x double> <double 1.75, double undef>) nounwind
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%sum11 = add i32 %i0, %i1
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%sum12 = add i32 %i4, %i5
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%sum1 = add i32 %sum11, %sum12
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%sum21 = add i64 %i2, %i3
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%sum22 = add i64 %i6, %i7
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%sum2 = add i64 %sum21, %sum22
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%sum1.sext = sext i32 %sum1 to i64
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%b = icmp eq i64 %sum1.sext, %sum2
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ret i1 %b
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}
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declare i32 @llvm.x86.sse.cvtss2si(<4 x float>) nounwind readnone
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declare i32 @llvm.x86.sse.cvttss2si(<4 x float>) nounwind readnone
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declare i64 @llvm.x86.sse.cvtss2si64(<4 x float>) nounwind readnone
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declare i64 @llvm.x86.sse.cvttss2si64(<4 x float>) nounwind readnone
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declare i32 @llvm.x86.sse2.cvtsd2si(<2 x double>) nounwind readnone
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declare i32 @llvm.x86.sse2.cvttsd2si(<2 x double>) nounwind readnone
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declare i64 @llvm.x86.sse2.cvtsd2si64(<2 x double>) nounwind readnone
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declare i64 @llvm.x86.sse2.cvttsd2si64(<2 x double>) nounwind readnone
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