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953a78084b
Modern PPC cores support a floating-point copysign instruction, and we can use this to lower the FCOPYSIGN node (which is created from calls to the libm copysign function). A couple of extra patterns are necessary because the operand types of FCOPYSIGN need not agree. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188653 91177308-0d34-0410-b5e6-96231b3b80d8
53 lines
1.2 KiB
LLVM
53 lines
1.2 KiB
LLVM
; RUN: llc -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 < %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-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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define double @foo_dd(double %a, double %b) #0 {
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entry:
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%call = tail call double @copysign(double %a, double %b) #0
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ret double %call
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; CHECK-LABEL: @foo_dd
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; CHECK: fcpsgn 1, 2, 1
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; CHECK: blr
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}
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declare double @copysign(double, double) #0
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define float @foo_ss(float %a, float %b) #0 {
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entry:
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%call = tail call float @copysignf(float %a, float %b) #0
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ret float %call
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; CHECK-LABEL: @foo_ss
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; CHECK: fcpsgn 1, 2, 1
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; CHECK: blr
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}
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declare float @copysignf(float, float) #0
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define float @foo_sd(float %a, double %b) #0 {
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entry:
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%conv = fptrunc double %b to float
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%call = tail call float @copysignf(float %a, float %conv) #0
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ret float %call
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; CHECK-LABEL: @foo_sd
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; CHECK: fcpsgn 1, 2, 1
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; CHECK: blr
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}
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define double @foo_ds(double %a, float %b) #0 {
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entry:
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%conv = fpext float %b to double
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%call = tail call double @copysign(double %a, double %conv) #0
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ret double %call
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; CHECK-LABEL: @foo_ds
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; CHECK: fcpsgn 1, 2, 1
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; CHECK: blr
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}
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attributes #0 = { nounwind readnone }
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