diff options
author | Sanjoy Das <sanjoy@playingwithpointers.com> | 2016-06-01 16:13:10 +0000 |
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committer | Sanjoy Das <sanjoy@playingwithpointers.com> | 2016-06-01 16:13:10 +0000 |
commit | da6ed23fe1293d1f69528a76477adfc861aef333 (patch) | |
tree | f63a8e07ef18ba5650f96525d9295a72261f4f50 /test/Verifier | |
parent | cc0c9e0cf6a583c82e2dc4b604edb8c4e88659b7 (diff) |
[IR] Disallow loading and storing unsized types
Summary:
It isn't clear what is the operational meaning of loading or storing an
unsized types, since it cannot be lowered into something meaningful.
Since there does not seem to be any practical need for it either, make
such loads and stores illegal IR.
Reviewers: majnemer, chandlerc
Subscribers: mcrosier, llvm-commits
Differential Revision: http://reviews.llvm.org/D20846
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271402 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Verifier')
-rw-r--r-- | test/Verifier/unsized-types.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/Verifier/unsized-types.ll b/test/Verifier/unsized-types.ll new file mode 100644 index 000000000000..64cc36f31741 --- /dev/null +++ b/test/Verifier/unsized-types.ll @@ -0,0 +1,24 @@ +; RUN: not opt -verify < %s 2>&1 | FileCheck %s + +%X = type opaque + +define void @f_0(%X* %ptr) { + %t = load %X, %X* %ptr + ret void +; CHECK: loading unsized types is not allowed +; CHECK-NEXT: %t = load %X, %X* %ptr +} + +define void @f_1(%X %val, %X* %ptr) { + store %X %val, %X* %ptr + ret void +; CHECK: storing unsized types is not allowed +; CHECK-NEXT: store %X %val, %X* %ptr +} + +define void @f_2() { + %t = alloca %X + ret void +; CHECK: Cannot allocate unsized type +; CHECK-NEXT: %t = alloca %X +} |