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Instructions for Book E PPC should be word aligned, set function alignment to reflect this

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llvm-svn: 142194
This commit is contained in:
Hal Finkel 2011-10-17 17:01:41 +00:00
parent 9e30a8355b
commit f5b7d5ea68
1 changed files with 10 additions and 3 deletions
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13
lib/Target/PowerPC/PPCISelLowering.cpp
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@ -402,9 +402,16 @@ PPCTargetLowering::PPCTargetLowering(PPCTargetMachine &TM)
setLibcallName(RTLIB::EXP2_PPCF128, "exp2l$LDBL128");
}
setMinFunctionAlignment(2);
if (PPCSubTarget.isDarwin())
setPrefFunctionAlignment(4);
if (PPCSubTarget.isBookE()) {
// Book E: Instructions are always four bytes long and word-aligned.
setMinFunctionAlignment(4);
setPrefFunctionAlignment(8);
}
else {
setMinFunctionAlignment(2);
if (PPCSubTarget.isDarwin())
setPrefFunctionAlignment(4);
}
setInsertFencesForAtomic(true);