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Fix the PowerPC JIT-only failure on UnitTests/Vector/sumarray-dbl, which is

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really a bad codegen bug that LLC happens to get lucky with. I must chat with
Nate for the proper fix.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28213 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-05-10 06:38:32 +00:00
parent 90db0358bb
commit 3e6a35076e
1 changed files with 2 additions and 2 deletions
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4
lib/Target/PowerPC/PPCRegisterInfo.cpp
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@ -506,11 +506,11 @@ void PPCRegisterInfo::emitPrologue(MachineFunction &MF) const {
// If there is a preferred stack alignment, align R1 now
if (MaxAlign > TargetAlign) {
assert(isPowerOf2_32(MaxAlign) && MaxAlign < 32767 && "Invalid alignment!");
assert(isInt16(MaxAlign-NumBytes) && "Unhandled stack size and alignment!");
assert(isInt16(0-NumBytes) && "Unhandled stack size and alignment!");
BuildMI(MBB, MBBI, PPC::RLWINM, 4, PPC::R0)
.addReg(PPC::R1).addImm(0).addImm(32-Log2_32(MaxAlign)).addImm(31);
BuildMI(MBB, MBBI, PPC::SUBFIC,2,PPC::R0).addReg(PPC::R0)
.addImm(MaxAlign-NumBytes);
.addImm(0-NumBytes);
BuildMI(MBB, MBBI, PPC::STWUX, 3)
.addReg(PPC::R1).addReg(PPC::R1).addReg(PPC::R0);
} else if (NumBytes <= 32768) {