From 6ac33b4533889f132ba10c812ae574d779c827b9 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Sun, 28 Feb 2010 01:33:43 +0000
Subject: Don't try to replace physical registers when doing CSE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97360 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/X86/licm-symbol.ll | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 test/CodeGen/X86/licm-symbol.ll

(limited to 'test/CodeGen/X86/licm-symbol.ll')

diff --git a/test/CodeGen/X86/licm-symbol.ll b/test/CodeGen/X86/licm-symbol.ll
new file mode 100644
index 0000000..d61bbfc
--- /dev/null
+++ b/test/CodeGen/X86/licm-symbol.ll
@@ -0,0 +1,39 @@
+; RUN: llc < %s | FileCheck %s
+
+; MachineLICM should be able to hoist the sF reference out of the loop.
+
+; CHECK: pushl %esi
+; CHECK: subl  $8, %esp
+; CHECK: movl  $176, %esi
+; CHECK: addl  L___sF$non_lazy_ptr, %esi
+; CHECK: .align  4, 0x90
+
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32"
+target triple = "i386-apple-darwin8"
+
+%struct.FILE = type { i8*, i32, i32, i16, i16, %struct.__sbuf, i32, i8*, i32 (i8*)*, i32 (i8*, i8*, i32)*, i64 (i8*, i64, i32)*, i32 (i8*, i8*, i32)*, %struct.__sbuf, %struct.__sFILEX*, i32, [3 x i8], [1 x i8], %struct.__sbuf, i32, i64 }
+%struct.__sFILEX = type opaque
+%struct.__sbuf = type { i8*, i32 }
+%struct.gcov_ctr_summary = type { i32, i32, i64, i64, i64 }
+%struct.gcov_summary = type { i32, [1 x %struct.gcov_ctr_summary] }
+
+@__sF = external global [0 x %struct.FILE]        ; <[0 x %struct.FILE]*> [#uses=1]
+
+declare i32 @fprintf(%struct.FILE* nocapture) nounwind
+
+define void @gcov_exit() nounwind {
+entry:
+  br label %bb151
+
+bb151:                                            ; preds = %bb59, %bb56, %bb14
+  br i1 undef, label %bb56, label %bb59
+
+bb56:                                             ; preds = %bb151
+  %t0 = call i32 (%struct.FILE*)* @fprintf(%struct.FILE* getelementptr inbounds ([0 x %struct.FILE]* @__sF, i32 0, i32 2)) nounwind
+  br label %bb151
+
+bb59:                                             ; preds = %bb151
+  %t1 = call i32 (%struct.FILE*)* @fprintf(%struct.FILE* getelementptr inbounds ([0 x %struct.FILE]* @__sF, i32 0, i32 2)) nounwind
+  br label %bb151
+}
+
-- 
cgit v1.1