diff options
Diffstat (limited to 'llvm/lib/Target/AArch64/AArch64InstrInfo.td')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64InstrInfo.td | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64InstrInfo.td b/llvm/lib/Target/AArch64/AArch64InstrInfo.td index e58ad278215..dad097e07ac 100644 --- a/llvm/lib/Target/AArch64/AArch64InstrInfo.td +++ b/llvm/lib/Target/AArch64/AArch64InstrInfo.td @@ -5272,15 +5272,8 @@ def SHA256SU0rr : SHATiedInstVV<0b0010, "sha256su0",int_aarch64_crypto_sha256su0 //---------------------------------------------------------------------------- // FIXME: Like for X86, these should go in their own separate .td file. -// Any instruction that defines a 32-bit result leaves the high half of the -// register. Truncate can be lowered to EXTRACT_SUBREG. CopyFromReg may -// be copying from a truncate. But any other 32-bit operation will zero-extend -// up to 64 bits. -// FIXME: X86 also checks for CMOV here. Do we need something similar? def def32 : PatLeaf<(i32 GPR32:$src), [{ - return N->getOpcode() != ISD::TRUNCATE && - N->getOpcode() != TargetOpcode::EXTRACT_SUBREG && - N->getOpcode() != ISD::CopyFromReg; + return isDef32(*N); }]>; // In the case of a 32-bit def that is known to implicitly zero-extend, |
