From c31ae50c04ca42f447c649c6a528e20ab3ea791f Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Fri, 11 Jun 2004 05:30:34 +0000
Subject: [PATCH] Test that the X86 backend is only emitting one fucom
 instruction for each 'COM =' line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14147 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/X86/compare_folding.llx | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 test/CodeGen/X86/compare_folding.llx

diff --git a/test/CodeGen/X86/compare_folding.llx b/test/CodeGen/X86/compare_folding.llx
new file mode 100644
index 00000000000..3d8e6c75fca
--- /dev/null
+++ b/test/CodeGen/X86/compare_folding.llx
@@ -0,0 +1,11 @@
+; RUN: llvm-as < %s | llc -march=x86 | grep com | wc -l > %t2
+; RUN: grep 'COM =' %s | grep -v grep | wc -l > %t1
+; RUN: diff %t1 %t2
+declare bool %llvm.isnan(double)
+
+bool %test1(double %X, double %Y) {  ;; Returns isunordered(X,Y)
+	%a = call bool %llvm.isnan(double %X)
+	%b = call bool %llvm.isnan(double %Y)
+	%COM = or bool %a, %b
+	ret bool %COM
+}