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author | Pirama Arumuga Nainar <pirama@google.com> | 2015-05-06 11:46:36 -0700 |
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committer | Pirama Arumuga Nainar <pirama@google.com> | 2015-05-18 10:52:30 -0700 |
commit | 2c3e0051c31c3f5b2328b447eadf1cf9c4427442 (patch) | |
tree | c0104029af14e9f47c2ef58ca60e6137691f3c9b /test/Transforms/InstCombine/objsize-noverify.ll | |
parent | e1bc145815f4334641be19f1c45ecf85d25b6e5a (diff) | |
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Update aosp/master LLVM for rebase to r235153
Change-Id: I9bf53792f9fc30570e81a8d80d296c681d005ea7
(cherry picked from commit 0c7f116bb6950ef819323d855415b2f2b0aad987)
Diffstat (limited to 'test/Transforms/InstCombine/objsize-noverify.ll')
-rw-r--r-- | test/Transforms/InstCombine/objsize-noverify.ll | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/objsize-noverify.ll b/test/Transforms/InstCombine/objsize-noverify.ll new file mode 100644 index 0000000..7e469bd --- /dev/null +++ b/test/Transforms/InstCombine/objsize-noverify.ll @@ -0,0 +1,43 @@ +; Test objectsize bounds checking that won't verify until after -instcombine. +; RUN: opt < %s -disable-verify -instcombine -S | opt -S | FileCheck %s +; We need target data to get the sizes of the arrays and structures. +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" + +declare i32 @llvm.objectsize.i32.p0i8(i8*, i1) nounwind readonly + +; CHECK-LABEL: @PR13390( +define i32 @PR13390(i1 %bool, i8* %a) { +entry: + %cond = or i1 %bool, true + br i1 %cond, label %return, label %xpto + +xpto: + %select = select i1 %bool, i8* %select, i8* %a + %select2 = select i1 %bool, i8* %a, i8* %select2 + %0 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %select, i1 true) + %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %select2, i1 true) + %2 = add i32 %0, %1 +; CHECK: ret i32 undef + ret i32 %2 + +return: + ret i32 42 +} + +; CHECK-LABEL: @PR13621( +define i32 @PR13621(i1 %bool) nounwind { +entry: + %cond = or i1 %bool, true + br i1 %cond, label %return, label %xpto + +; technically reachable, but this malformed IR may appear as a result of constant propagation +xpto: + %gep2 = getelementptr i8, i8* %gep, i32 1 + %gep = getelementptr i8, i8* %gep2, i32 1 + %o = call i32 @llvm.objectsize.i32.p0i8(i8* %gep, i1 true) +; CHECK: ret i32 undef + ret i32 %o + +return: + ret i32 7 +} |