From 1fc08f5e9ef733ef1ce6f363fecedc2260e78974 Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Sat, 14 Apr 2012 13:54:10 +0000
Subject: Vendor import of llvm trunk r154661:
http://llvm.org/svn/llvm-project/llvm/trunk@r154661
---
test/CodeGen/X86/machine-cse.ll | 24 +++++++++++++++++++++++-
1 file changed, 23 insertions(+), 1 deletion(-)
(limited to 'test/CodeGen/X86/machine-cse.ll')
diff --git a/test/CodeGen/X86/machine-cse.ll b/test/CodeGen/X86/machine-cse.ll
index d819fc8..a757cde 100644
--- a/test/CodeGen/X86/machine-cse.ll
+++ b/test/CodeGen/X86/machine-cse.ll
@@ -1,4 +1,4 @@
-; RUN: llc -mtriple=x86_64-apple-darwin < %s | FileCheck %s
+; RUN: llc -mtriple=x86_64-apple-macosx < %s | FileCheck %s
; rdar://7610418
%ptr = type { i8* }
@@ -77,3 +77,25 @@ bb.nph743.us: ; preds = %for.body53.us, %if.
sw.bb307: ; preds = %sw.bb, %entry
ret void
}
+
+; CSE physical register defining instruction across MBB boundary.
+; rdar://10660865
+define i32 @cross_mbb_phys_cse(i32 %a, i32 %b) nounwind ssp {
+entry:
+; CHECK: cross_mbb_phys_cse:
+; CHECK: cmpl
+; CHECK: ja
+ %cmp = icmp ugt i32 %a, %b
+ br i1 %cmp, label %return, label %if.end
+
+if.end: ; preds = %entry
+; CHECK-NOT: cmpl
+; CHECK: sbbl
+ %cmp1 = icmp ult i32 %a, %b
+ %. = sext i1 %cmp1 to i32
+ br label %return
+
+return: ; preds = %if.end, %entry
+ %retval.0 = phi i32 [ 1, %entry ], [ %., %if.end ]
+ ret i32 %retval.0
+}
--
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