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authorNick Lewycky <nicholas@mxc.ca>2010-08-08 06:12:09 +0000
committerNick Lewycky <nicholas@mxc.ca>2010-08-08 06:12:09 +0000
commit1bb580a3aa7f1643a9e2968ada6b78da7527b162 (patch)
tree6572b0aa9925b978257c0ec50f13e688cd039bd5 /test/Verifier
parentc98af3370f899a0d1570b1dff01a2e36632f884f (diff)
Reject unrepresentable pointer types in intrinsics. Fixes PR7316.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110541 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Verifier')
-rw-r--r--test/Verifier/2010-08-07-PointerIntrinsic.ll21
1 files changed, 21 insertions, 0 deletions
diff --git a/test/Verifier/2010-08-07-PointerIntrinsic.ll b/test/Verifier/2010-08-07-PointerIntrinsic.ll
new file mode 100644
index 00000000000..bf5563d9c05
--- /dev/null
+++ b/test/Verifier/2010-08-07-PointerIntrinsic.ll
@@ -0,0 +1,21 @@
+; RUN: not llvm-as < %s 2> %t
+; RUN: grep {Broken module} %t
+; PR7316
+
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:32"
+target triple = "x86-unknown-unknown"
+@aa = global [32 x i8] zeroinitializer, align 1
+@bb = global [16 x i8] zeroinitializer, align 1
+define void @x() nounwind {
+L.0:
+ %0 = getelementptr [32 x i8]* @aa, i32 0, i32 4
+ %1 = bitcast i8* %0 to [16 x i8]*
+ %2 = bitcast [16 x i8]* %1 to [0 x i8]*
+ %3 = getelementptr [16 x i8]* @bb
+ %4 = bitcast [16 x i8]* %3 to [0 x i8]*
+ call void @llvm.memcpy.i32([0 x i8]* %2, [0 x i8]* %4, i32 16, i32 1)
+ br label %return
+return:
+ ret void
+}
+declare void @llvm.memcpy.i32([0 x i8]*, [0 x i8]*, i32, i32) nounwind