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| author | Hal Finkel <hfinkel@anl.gov> | 2013-08-19 05:01:02 +0000 |
|---|---|---|
| committer | Hal Finkel <hfinkel@anl.gov> | 2013-08-19 05:01:02 +0000 |
| commit | 953a78084b85ea88cd2b208153a72df70e27133f (patch) | |
| tree | 0d675bc7cfc49f17f2da670f7fab40f064f6b84b /test/CodeGen/PowerPC/fcpsgn.ll | |
| parent | a9b697975592b204e86496efc62a8b26fbfa1a03 (diff) | |
| download | llvm-953a78084b85ea88cd2b208153a72df70e27133f.tar.gz llvm-953a78084b85ea88cd2b208153a72df70e27133f.tar.bz2 llvm-953a78084b85ea88cd2b208153a72df70e27133f.tar.xz | |
Add the PPC fcpsgn instruction
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
Diffstat (limited to 'test/CodeGen/PowerPC/fcpsgn.ll')
| -rw-r--r-- | test/CodeGen/PowerPC/fcpsgn.ll | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/fcpsgn.ll b/test/CodeGen/PowerPC/fcpsgn.ll new file mode 100644 index 0000000000..f469981634 --- /dev/null +++ b/test/CodeGen/PowerPC/fcpsgn.ll @@ -0,0 +1,52 @@ +; RUN: llc -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 < %s | FileCheck %s +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" +target triple = "powerpc64-unknown-linux-gnu" + +define double @foo_dd(double %a, double %b) #0 { +entry: + %call = tail call double @copysign(double %a, double %b) #0 + ret double %call + +; CHECK-LABEL: @foo_dd +; CHECK: fcpsgn 1, 2, 1 +; CHECK: blr +} + +declare double @copysign(double, double) #0 + +define float @foo_ss(float %a, float %b) #0 { +entry: + %call = tail call float @copysignf(float %a, float %b) #0 + ret float %call + +; CHECK-LABEL: @foo_ss +; CHECK: fcpsgn 1, 2, 1 +; CHECK: blr +} + +declare float @copysignf(float, float) #0 + +define float @foo_sd(float %a, double %b) #0 { +entry: + %conv = fptrunc double %b to float + %call = tail call float @copysignf(float %a, float %conv) #0 + ret float %call + +; CHECK-LABEL: @foo_sd +; CHECK: fcpsgn 1, 2, 1 +; CHECK: blr +} + +define double @foo_ds(double %a, float %b) #0 { +entry: + %conv = fpext float %b to double + %call = tail call double @copysign(double %a, double %conv) #0 + ret double %call + +; CHECK-LABEL: @foo_ds +; CHECK: fcpsgn 1, 2, 1 +; CHECK: blr +} + +attributes #0 = { nounwind readnone } + |