Vendor import of llvm trunk r161861:

http://llvm.org/svn/llvm-project/llvm/trunk@161861

1 files changed, 18 insertions, 0 deletions

diff --git a/test/Transforms/Reassociate/fp-commute.ll b/test/Transforms/Reassociate/fp-commute.ll
new file mode 100644
index 0000000..025689b
--- /dev/null
+++ b/test/Transforms/Reassociate/fp-commute.ll
@@ -0,0 +1,18 @@
+; RUN: opt -reassociate -S < %s | FileCheck %s
+
+target triple = "armv7-apple-ios"
+
+declare void @use(float)
+
+; CHECK: test
+define void @test(float %x, float %y) {
+entry:
+; CHECK: fmul float %x, %y
+; CHECK: fmul float %x, %y
+  %0 = fmul float %x, %y
+  %1 = fmul float %y, %x
+  %2 = fsub float %0, %1
+  call void @use(float %0)
+  call void @use(float %2)
+  ret void
+}