Add a regression test for folding spill code into scalar min and max.

llvm-svn: 38492

1 files changed, 20 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/X86/scalar-min-max-fill-operand.ll b/llvm/test/CodeGen/X86/scalar-min-max-fill-operand.ll
new file mode 100644
index 00000000000..9d6fc4ff3c7
--- /dev/null
+++ b/llvm/test/CodeGen/X86/scalar-min-max-fill-operand.ll
@@ -0,0 +1,20 @@
+; RUN: llvm-as < %s | llc -march=x86-64 | grep min | wc -l | grep 1
+; RUN: llvm-as < %s | llc -march=x86-64 | grep max | wc -l | grep 1
+; RUN: llvm-as < %s | llc -march=x86-64 | grep mov | wc -l | grep 2
+
+declare float @bar()
+
+define float @foo(float %a)
+{
+  %s = call float @bar()
+  %t = fcmp olt float %s, %a
+  %u = select i1 %t, float %s, float %a
+  ret float %u
+}
+define float @hem(float %a)
+{
+  %s = call float @bar()
+  %t = fcmp uge float %s, %a
+  %u = select i1 %t, float %s, float %a
+  ret float %u
+}