From 607ebde651f18d68e45724c6e3b3544d4786879f Mon Sep 17 00:00:00 2001
From: Owen Anderson <resistor@mac.com>
Date: Thu, 1 Nov 2012 02:00:53 +0000
Subject: Add a few more simple fast-math constant propagations and
 cancellations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167200 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/X86/fp-fast.ll | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'test/CodeGen/X86/fp-fast.ll')

diff --git a/test/CodeGen/X86/fp-fast.ll b/test/CodeGen/X86/fp-fast.ll
index 091f0de930..192a127358 100644
--- a/test/CodeGen/X86/fp-fast.ll
+++ b/test/CodeGen/X86/fp-fast.ll
@@ -35,3 +35,23 @@ define float @test3(float %a) {
   ret float %r
 }
 
+; CHECK: test4
+define float @test4(float %a) {
+; CHECK-NOT: fma
+; CHECK-NOT mul
+; CHECK-NOT: add
+; CHECK: ret
+  %t1 = fmul float %a, 0.0
+  %t2 = fadd float %a, %t1
+  ret float %t2
+}
+
+; CHECK: test5
+define float @test5(float %a) {
+; CHECK-NOT: add
+; CHECK: vxorps
+; CHECK: ret
+  %t1 = fsub float -0.0, %a
+  %t2 = fadd float %a, %t1
+  ret float %t2
+}
-- 
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