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[Sparc][Leon] Corrected supported atomics size for processors supporting Leon CASA instruction back to 32 bits. 

This was erroneously checked-in for 64 bits while trying to find if there was a way to get 64 bit atomicity in Leon processors. There is not and this change should not have been checked-in. There is no unit test for this as the existing unit tests test for behaviour to 32 bits, which was the original intention of the code.

llvm-svn: 280710
This commit is contained in:
Chris Dewhurst 2016-09-06 14:41:09 +00:00
parent 719f55d379
commit 92cac9322d
1 changed files with 1 additions and 1 deletions
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llvm/lib/Target/Sparc/SparcISelLowering.cpp
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@ -1620,7 +1620,7 @@ SparcTargetLowering::SparcTargetLowering(const TargetMachine &TM,
if (Subtarget->isV9())
setMaxAtomicSizeInBitsSupported(64);
else if (Subtarget->hasLeonCasa())
setMaxAtomicSizeInBitsSupported(64);
setMaxAtomicSizeInBitsSupported(32);
else
setMaxAtomicSizeInBitsSupported(0);