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authorEvan Cheng <evan.cheng@apple.com>2010-03-05 20:47:23 +0000
committerEvan Cheng <evan.cheng@apple.com>2010-03-05 20:47:23 +0000
commitfffdad58ac5b503570767d62509254a268709ebb (patch)
tree50d279062aa1ddc8cb978d6692b3b5ac30cbd679 /llvm/test/Transforms
parentb2bc4b9880e08a23d52faa05bab88f9d8da65711 (diff)
downloadbcm5719-llvm-fffdad58ac5b503570767d62509254a268709ebb.tar.gz
bcm5719-llvm-fffdad58ac5b503570767d62509254a268709ebb.zip
Instcombine should turn llvm.objectsize of a alloca with static size to an integer.
llvm-svn: 97827
Diffstat (limited to 'llvm/test/Transforms')
-rw-r--r--llvm/test/Transforms/InstCombine/objsize.ll20
1 files changed, 20 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/objsize.ll b/llvm/test/Transforms/InstCombine/objsize.ll
index 9df122499e6..bf1a37f975d 100644
--- a/llvm/test/Transforms/InstCombine/objsize.ll
+++ b/llvm/test/Transforms/InstCombine/objsize.ll
@@ -102,4 +102,24 @@ bb12:
unreachable
}
+; rdar://7718857
+
+%struct.data = type { [100 x i32], [100 x i32], [1024 x i8] }
+
+define i32 @test4() nounwind ssp {
+; CHECK: @test4
+entry:
+ %0 = alloca %struct.data, align 8
+ %1 = bitcast %struct.data* %0 to i8*
+ %2 = call i64 @llvm.objectsize.i64(i8* %1, i1 false) nounwind
+; CHECK-NOT: @llvm.objectsize
+; CHECK: @__memset_chk(i8* %1, i32 0, i64 1824, i64 1824)
+ %3 = call i8* @__memset_chk(i8* %1, i32 0, i64 1824, i64 %2) nounwind
+ ret i32 0
+}
+
+declare i8* @__memset_chk(i8*, i32, i64, i64) nounwind
+
declare i32 @llvm.objectsize.i32(i8*, i1) nounwind readonly
+
+declare i64 @llvm.objectsize.i64(i8*, i1) nounwind readonly
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