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| author | Chris Lattner <sabre@nondot.org> | 2008-08-23 05:21:06 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-08-23 05:21:06 +0000 |
| commit | 88e6dc8bf14e8a98888f62173a6581386b8d29a0 (patch) | |
| tree | bfebfb3e4e551700336b994dd70cd26d726455ec /test/Transforms | |
| parent | b4f572597e04aadb8481742825c846988d7e6781 (diff) | |
| download | llvm-88e6dc8bf14e8a98888f62173a6581386b8d29a0.tar.gz llvm-88e6dc8bf14e8a98888f62173a6581386b8d29a0.tar.bz2 llvm-88e6dc8bf14e8a98888f62173a6581386b8d29a0.tar.xz | |
Fix PR2423 by checking all indices for out of range access, not only
indices that start with an array subscript. x->field[10000] is just
as bad as (*X)[14][10000].
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55226 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/ScalarRepl/2008-08-22-out-of-range-array-promote.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/Transforms/ScalarRepl/2008-08-22-out-of-range-array-promote.ll b/test/Transforms/ScalarRepl/2008-08-22-out-of-range-array-promote.ll new file mode 100644 index 0000000000..a2386fdedc --- /dev/null +++ b/test/Transforms/ScalarRepl/2008-08-22-out-of-range-array-promote.ll @@ -0,0 +1,22 @@ +; RUN: llvm-as < %s | opt -scalarrepl | llvm-dis | grep {s = alloca .struct.x} +; PR2423 +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" +target triple = "i386-apple-darwin8" + %struct.x = type { [1 x i32], i32, i32 } + +define i32 @b() nounwind { +entry: + %s = alloca %struct.x ; <%struct.x*> [#uses=2] + %r = alloca %struct.x ; <%struct.x*> [#uses=2] + call i32 @a( %struct.x* %s ) nounwind ; <i32>:0 [#uses=0] + %r1 = bitcast %struct.x* %r to i8* ; <i8*> [#uses=1] + %s2 = bitcast %struct.x* %s to i8* ; <i8*> [#uses=1] + call void @llvm.memcpy.i32( i8* %r1, i8* %s2, i32 12, i32 8 ) + getelementptr %struct.x* %r, i32 0, i32 0, i32 1 ; <i32*>:1 [#uses=1] + load i32* %1, align 4 ; <i32>:2 [#uses=1] + ret i32 %2 +} + +declare i32 @a(%struct.x*) + +declare void @llvm.memcpy.i32(i8*, i8*, i32, i32) nounwind |