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authorDevang Patel <dpatel@apple.com>2009-02-04 00:03:08 +0000
committerDevang Patel <dpatel@apple.com>2009-02-04 00:03:08 +0000
commit65085cf7b3470b7b087f5fd7b0497879b90b32ba (patch)
tree7ce0d617b225c54aa20762e452aeea35ee88661a /test/Transforms/SimplifyCFG
parenta04b75710910278334192b389c4c4c62600e162f (diff)
downloadexternal_llvm-65085cf7b3470b7b087f5fd7b0497879b90b32ba.zip
external_llvm-65085cf7b3470b7b087f5fd7b0497879b90b32ba.tar.gz
external_llvm-65085cf7b3470b7b087f5fd7b0497879b90b32ba.tar.bz2
Ignore dbg intrinsics while hoisting common code in the two blocks up into the branch block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63687 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/SimplifyCFG')
-rw-r--r--test/Transforms/SimplifyCFG/hoist-common-code.dbg.ll33
1 files changed, 33 insertions, 0 deletions
diff --git a/test/Transforms/SimplifyCFG/hoist-common-code.dbg.ll b/test/Transforms/SimplifyCFG/hoist-common-code.dbg.ll
new file mode 100644
index 0000000..ad5cd93
--- /dev/null
+++ b/test/Transforms/SimplifyCFG/hoist-common-code.dbg.ll
@@ -0,0 +1,33 @@
+; RUN: llvm-as < %s | opt -simplifycfg | llvm-dis | not grep br
+
+
+ %llvm.dbg.anchor.type = type { i32, i32 }
+ %llvm.dbg.compile_unit.type = type { i32, { }*, i32, i8*, i8*, i8*, i1, i1, i8* }
+
+@llvm.dbg.compile_units = linkonce constant %llvm.dbg.anchor.type { i32 458752, i32 17 }, section "llvm.metadata" ;
+
+@.str = internal constant [4 x i8] c"a.c\00", section "llvm.metadata" ; <[4 x i8]*> [#uses=1]
+@.str1 = internal constant [6 x i8] c"/tmp/\00", section "llvm.metadata" ; <[6 x i8]*> [#uses=1]
+@.str2 = internal constant [55 x i8] c"4.2.1 (Based on Apple Inc. build 5636) (LLVM build 00)\00", section "llvm.metadata" ; <[55 x i8]*> [#uses=1]
+@llvm.dbg.compile_unit = internal constant %llvm.dbg.compile_unit.type { i32 458769, { }* bitcast (%llvm.dbg.anchor.type* @llvm.dbg.compile_units to { }*), i32 1, i8* getelementptr ([4 x i8]* @.str, i32 0, i32 0), i8* getelementptr ([6 x i8]* @.str1, i32 0, i32 0), i8* getelementptr ([55 x i8]* @.str2, i32 0, i32 0), i1 true, i1 false, i8* null }, section "llvm.metadata" ; <%llvm.dbg.compile_unit.type*> [#uses=1]
+
+declare void @llvm.dbg.stoppoint(i32, i32, { }*) nounwind
+
+declare void @bar(i32)
+
+define void @test(i1 %P, i32* %Q) {
+ br i1 %P, label %T, label %F
+T: ; preds = %0
+call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
+ store i32 1, i32* %Q
+ %A = load i32* %Q ; <i32> [#uses=1]
+ call void @bar( i32 %A )
+ ret void
+F: ; preds = %0
+ store i32 1, i32* %Q
+call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
+ %B = load i32* %Q ; <i32> [#uses=1]
+ call void @bar( i32 %B )
+ ret void
+}
+