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[SystemZ] Use preferred 16-byte function alignment

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While not necessary for correctness, it is preferable for
performance reasons on all architectures we currently support
to align functions to 16-byte boundaries by default.

llvm-svn: 330718
This commit is contained in:
Ulrich Weigand 2018-04-24 14:03:21 +00:00
parent cf35a2cfd3
commit 7b39b149d1
1 changed files with 2 additions and 0 deletions
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2
lib/Target/SystemZ/SystemZISelLowering.cpp
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@ -122,6 +122,8 @@ SystemZTargetLowering::SystemZTargetLowering(const TargetMachine &TM,
// Instructions are strings of 2-byte aligned 2-byte values.
setMinFunctionAlignment(2);
// For performance reasons we prefer 16-byte alignment.
setPrefFunctionAlignment(4);
// Handle operations that are handled in a similar way for all types.
for (unsigned I = MVT::FIRST_INTEGER_VALUETYPE;