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authorChris Lattner <sabre@nondot.org>2010-02-25 22:33:52 +0000
committerChris Lattner <sabre@nondot.org>2010-02-25 22:33:52 +0000
commita687465bae9ce793444fef37eb790ac7722f6bc7 (patch)
tree4d7b89ae43506e3ae75ea601df51f235701e5be8 /test
parent55983f1ca5f24b167c9ef76e2a0136fbf0ee37ce (diff)
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rewrite OptimizeGlobalAddressOfMalloc to fix PR6422, some bugs
introduced when mallocinst was eliminated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97178 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
-rw-r--r--test/Transforms/GlobalOpt/2010-02-25-MallocPromote.ll17
1 files changed, 17 insertions, 0 deletions
diff --git a/test/Transforms/GlobalOpt/2010-02-25-MallocPromote.ll b/test/Transforms/GlobalOpt/2010-02-25-MallocPromote.ll
new file mode 100644
index 0000000000..52f4fde3bb
--- /dev/null
+++ b/test/Transforms/GlobalOpt/2010-02-25-MallocPromote.ll
@@ -0,0 +1,17 @@
+; PR6422
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
+target triple = "x86_64-unknown-linux-gnu"
+
+@fixLRBT = internal global i32* null ; <i32**> [#uses=2]
+
+declare noalias i8* @malloc(i32)
+
+define i32 @parser() nounwind {
+bb918:
+ %malloccall.i10 = call i8* @malloc(i32 16) nounwind ; <i8*> [#uses=1]
+ %0 = bitcast i8* %malloccall.i10 to i32* ; <i32*> [#uses=1]
+ store i32* %0, i32** @fixLRBT, align 8
+ %1 = load i32** @fixLRBT, align 8 ; <i32*> [#uses=0]
+ %A = load i32* %1
+ ret i32 %A
+}