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-rw-r--r--test/Transforms/InstCombine/objsize.ll30
1 files changed, 30 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/objsize.ll b/test/Transforms/InstCombine/objsize.ll
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--- /dev/null
+++ b/test/Transforms/InstCombine/objsize.ll
@@ -0,0 +1,30 @@
+; RUN: opt < %s -instcombine -S | FileCheck %s
+@a = common global [60 x i8] zeroinitializer, align 1 ; <[60 x i8]*>
+@.str = private constant [8 x i8] c"abcdefg\00" ; <[8 x i8]*>
+
+define i32 @foo() nounwind {
+; CHECK: @foo
+; CHECK-NEXT: ret i32 60
+ %1 = call i32 @llvm.objectsize.i32(i8* getelementptr inbounds ([60 x i8]* @a, i32 0, i32 0), i1 false)
+ ret i32 %1
+}
+
+define i8* @bar() nounwind {
+; CHECK: @bar
+entry:
+ %retval = alloca i8*
+ %0 = call i32 @llvm.objectsize.i32(i8* getelementptr inbounds ([60 x i8]* @a, i32 0, i32 0), i1 false)
+ %cmp = icmp ne i32 %0, -1
+; CHECK: br i1 true
+ br i1 %cmp, label %cond.true, label %cond.false
+
+cond.true:
+ %1 = load i8** %retval;
+ ret i8* %1;
+
+cond.false:
+ %2 = load i8** %retval;
+ ret i8* %2;
+}
+
+declare i32 @llvm.objectsize.i32(i8*, i1) nounwind readonly \ No newline at end of file