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| author | Nico Weber <nicolasweber@gmx.de> | 2016-06-29 17:34:31 +0000 |
|---|---|---|
| committer | Nico Weber <nicolasweber@gmx.de> | 2016-06-29 17:34:31 +0000 |
| commit | 0a480b2c050d06bcf94a837e19217d577e69e4b6 (patch) | |
| tree | 44eab9a064dcb0a391adb1537e4093185c504896 /llvm/test/CodeGen/Thumb/and_neg.ll | |
| parent | 12fdf60b75f847666193f14db3d05bab6194ec26 (diff) | |
| download | bcm5719-llvm-0a480b2c050d06bcf94a837e19217d577e69e4b6.tar.gz bcm5719-llvm-0a480b2c050d06bcf94a837e19217d577e69e4b6.zip | |
Add a regression test for PR28348.
llvm-svn: 274142
Diffstat (limited to 'llvm/test/CodeGen/Thumb/and_neg.ll')
| -rw-r--r-- | llvm/test/CodeGen/Thumb/and_neg.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/Thumb/and_neg.ll b/llvm/test/CodeGen/Thumb/and_neg.ll new file mode 100644 index 00000000000..88217c7cb20 --- /dev/null +++ b/llvm/test/CodeGen/Thumb/and_neg.ll @@ -0,0 +1,20 @@ +; RUN: llc < %s -mtriple=thumbv7-linux-gnueabi -verify-machineinstrs +; Just shouldn't crash, PR28348 + +%C = type { i8* } + +define void @repro(%C* %this, i32 %a) { + %a_align1 = and i32 %a, -4096 + %a_and = and i32 %a, 4095 + %a_align2 = or i32 %a_and, 4096 + + call void @use(i32 %a_align1) + + %C_field = getelementptr inbounds %C, %C* %this, i32 0, i32 0 + %addptr = getelementptr inbounds i8, i8* null, i32 %a_align2 + store i8* %addptr, i8** %C_field, align 4 + + ret void +} + +declare void @use(i32) |
