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Diffstat (limited to 'test/CodeGen/PowerPC/fma-mutate.ll')
| -rw-r--r-- | test/CodeGen/PowerPC/fma-mutate.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/fma-mutate.ll b/test/CodeGen/PowerPC/fma-mutate.ll new file mode 100644 index 0000000..1a391f4 --- /dev/null +++ b/test/CodeGen/PowerPC/fma-mutate.ll @@ -0,0 +1,21 @@ +; Test several VSX FMA mutation opportunities. The first one isn't a +; reasonable transformation because the killed product register is the +; same as the FMA target register. The second one is legal. The third +; one doesn't fit the feeding-copy pattern. + +; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -enable-unsafe-fp-math -mattr=+vsx | 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" + +declare double @llvm.sqrt.f64(double) + +define double @foo3(double %a) nounwind { + %r = call double @llvm.sqrt.f64(double %a) + ret double %r + +; CHECK: @foo3 +; CHECK: xsnmsubadp [[REG:[0-9]+]], {{[0-9]+}}, [[REG]] +; CHECK: xsmaddmdp +; CHECK: xsmaddadp +} + |