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| author | Ana Pazos <apazos@codeaurora.org> | 2014-01-24 22:36:53 +0000 |
|---|---|---|
| committer | Ana Pazos <apazos@codeaurora.org> | 2014-01-24 22:36:53 +0000 |
| commit | 08f6677a7fa8b89412c0e27e5445813174361504 (patch) | |
| tree | 191d2fe137ef01a633cf26e587d686ac60c2a97c /lib/Target | |
| parent | dbba2eb82fcecbc8a202c3d1d0704f1831154992 (diff) | |
| download | llvm-08f6677a7fa8b89412c0e27e5445813174361504.tar.gz llvm-08f6677a7fa8b89412c0e27e5445813174361504.tar.bz2 llvm-08f6677a7fa8b89412c0e27e5445813174361504.tar.xz | |
[AArch64] Removed unused i8 type from FPR8 register class.
The i8 type is not registered with any register class.
This causes a segmentation fault in MachineLICM::getRegisterClassIDAndCost.
The code selects the first type associated with register class FPR8,
which happens to be i8.
It uses this type (i8) to get the representative class pointer, which is 0.
It then uses this pointer to access a field, resulting in segmentation fault.
Since i8 type is not being used for printing any neon instruction
we can safely remove it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200046 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target')
| -rw-r--r-- | lib/Target/AArch64/AArch64RegisterInfo.td | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Target/AArch64/AArch64RegisterInfo.td b/lib/Target/AArch64/AArch64RegisterInfo.td index cfc0c953bd..9de7abdf5f 100644 --- a/lib/Target/AArch64/AArch64RegisterInfo.td +++ b/lib/Target/AArch64/AArch64RegisterInfo.td @@ -146,7 +146,7 @@ foreach Index = 0-31 in { } -def FPR8 : RegisterClass<"AArch64", [i8, v1i8], 8, +def FPR8 : RegisterClass<"AArch64", [v1i8], 8, (sequence "B%u", 0, 31)> { } |