aboutsummaryrefslogtreecommitdiffstats
path: root/test/Transforms/GlobalOpt/malloc-promote-2.ll
diff options
context:
space:
mode:
Diffstat (limited to 'test/Transforms/GlobalOpt/malloc-promote-2.ll')
-rw-r--r--test/Transforms/GlobalOpt/malloc-promote-2.ll24
1 files changed, 24 insertions, 0 deletions
diff --git a/test/Transforms/GlobalOpt/malloc-promote-2.ll b/test/Transforms/GlobalOpt/malloc-promote-2.ll
new file mode 100644
index 0000000..f989b79
--- /dev/null
+++ b/test/Transforms/GlobalOpt/malloc-promote-2.ll
@@ -0,0 +1,24 @@
+; RUN: opt < %s -globalopt -globaldce -S | not grep malloc
+target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
+
+@G = internal global i32* null ; <i32**> [#uses=3]
+
+define void @init() {
+ %malloccall = tail call i8* @malloc(i64 mul (i64 100, i64 4)) ; <i8*> [#uses=1]
+ %P = bitcast i8* %malloccall to i32* ; <i32*> [#uses=1]
+ store i32* %P, i32** @G
+ %GV = load i32** @G ; <i32*> [#uses=1]
+ %GVe = getelementptr i32* %GV, i32 40 ; <i32*> [#uses=1]
+ store i32 20, i32* %GVe
+ ret void
+}
+
+declare noalias i8* @malloc(i64)
+
+define i32 @get() {
+ %GV = load i32** @G ; <i32*> [#uses=1]
+ %GVe = getelementptr i32* %GV, i32 40 ; <i32*> [#uses=1]
+ %V = load i32* %GVe ; <i32> [#uses=1]
+ ret i32 %V
+}
+