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| author | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-08-01 10:39:40 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-08-01 10:39:40 +0000 |
| commit | 8f0ad5ae8f2699f6ab13a229941a0b192273cae8 (patch) | |
| tree | 9d0bb8af50d25824ea6549b972bee2930b765bba /lib/Target/SystemZ/SystemZInstrInfo.cpp | |
| parent | 3237f88882eed8a67fa679f7071a5441c4306ac3 (diff) | |
| download | llvm-8f0ad5ae8f2699f6ab13a229941a0b192273cae8.tar.gz llvm-8f0ad5ae8f2699f6ab13a229941a0b192273cae8.tar.bz2 llvm-8f0ad5ae8f2699f6ab13a229941a0b192273cae8.tar.xz | |
[SystemZ] Reuse CC results for integer comparisons with zero
This also fixes a bug in the predication of LR to LOCR: I'd forgotten
that with these in-place instruction builds, the implicit operands need
to be added manually. I think this was latent until now, but is tested
by int-cmp-45.c. It also adds a CC valid mask to STOC, again tested by
int-cmp-45.c.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187573 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/SystemZ/SystemZInstrInfo.cpp')
| -rw-r--r-- | lib/Target/SystemZ/SystemZInstrInfo.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Target/SystemZ/SystemZInstrInfo.cpp b/lib/Target/SystemZ/SystemZInstrInfo.cpp index 2b604a99fd..9913db7b0e 100644 --- a/lib/Target/SystemZ/SystemZInstrInfo.cpp +++ b/lib/Target/SystemZ/SystemZInstrInfo.cpp @@ -341,7 +341,8 @@ PredicateInstruction(MachineInstr *MI, if (unsigned CondOpcode = getConditionalMove(Opcode)) { MI->setDesc(get(CondOpcode)); MachineInstrBuilder(*MI->getParent()->getParent(), MI) - .addImm(CCValid).addImm(CCMask); + .addImm(CCValid).addImm(CCMask) + .addReg(SystemZ::CC, RegState::Implicit);; return true; } } |