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| author | Lauro Ramos Venancio <lauro.venancio@gmail.com> | 2007-04-02 01:30:03 +0000 |
|---|---|---|
| committer | Lauro Ramos Venancio <lauro.venancio@gmail.com> | 2007-04-02 01:30:03 +0000 |
| commit | 9996663fc6d50128a4897ff3568d311496e9d944 (patch) | |
| tree | e3c0545c67db1ab7dbb9c1af9935e84e2ea45f8b /lib/Target/ARM/ARMISelLowering.cpp | |
| parent | 086f18626750482318612a10c3027b946b4e36e4 (diff) | |
| download | llvm-9996663fc6d50128a4897ff3568d311496e9d944.tar.gz llvm-9996663fc6d50128a4897ff3568d311496e9d944.tar.bz2 llvm-9996663fc6d50128a4897ff3568d311496e9d944.tar.xz | |
- Divides the comparisons in two types: comparisons that only use N and Z
flags (ARMISD::CMPNZ) and comparisons that use all flags (ARMISD::CMP).
- Defines the instructions: TST, TEQ (ARM) and TST (Thumb).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35573 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/ARMISelLowering.cpp')
| -rw-r--r-- | lib/Target/ARM/ARMISelLowering.cpp | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index bb715cb3ca..8f3457a045 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -266,6 +266,7 @@ const char *ARMTargetLowering::getTargetNodeName(unsigned Opcode) const { case ARMISD::RET_FLAG: return "ARMISD::RET_FLAG"; case ARMISD::PIC_ADD: return "ARMISD::PIC_ADD"; case ARMISD::CMP: return "ARMISD::CMP"; + case ARMISD::CMPNZ: return "ARMISD::CMPNZ"; case ARMISD::CMPFP: return "ARMISD::CMPFP"; case ARMISD::CMPFPw0: return "ARMISD::CMPFPw0"; case ARMISD::FMSTAT: return "ARMISD::FMSTAT"; @@ -946,8 +947,21 @@ static SDOperand getARMCmp(SDOperand LHS, SDOperand RHS, ISD::CondCode CC, } ARMCC::CondCodes CondCode = IntCCToARMCC(CC); + ARMISD::NodeType CompareType; + switch (CondCode) { + default: + CompareType = ARMISD::CMP; + break; + case ARMCC::EQ: + case ARMCC::NE: + case ARMCC::MI: + case ARMCC::PL: + // Uses only N and Z Flags + CompareType = ARMISD::CMPNZ; + break; + } ARMCC = DAG.getConstant(CondCode, MVT::i32); - return DAG.getNode(ARMISD::CMP, MVT::Flag, LHS, RHS); + return DAG.getNode(CompareType, MVT::Flag, LHS, RHS); } /// Returns a appropriate VFP CMP (fcmp{s|d}+fmstat) for the given operands. |