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| author | Hal Finkel <hfinkel@anl.gov> | 2015-02-10 18:45:02 +0000 |
|---|---|---|
| committer | Hal Finkel <hfinkel@anl.gov> | 2015-02-10 18:45:02 +0000 |
| commit | 57c6ac5e416ff75b9e97e9f85eb78408e67fff11 (patch) | |
| tree | 63ece6ebf5da0f50143bda2ffa1efa4695808148 /llvm/lib | |
| parent | 6d224dbda70cf6d88832f770efe12a558ba5bf10 (diff) | |
| download | bcm5719-llvm-57c6ac5e416ff75b9e97e9f85eb78408e67fff11.tar.gz bcm5719-llvm-57c6ac5e416ff75b9e97e9f85eb78408e67fff11.zip | |
[PowerPC] Support the (old) cntlz instruction alias
Some old assembly code uses the cntlz alias for cntlzw, binutils supports this,
and we should too. Fixes PR22519.
llvm-svn: 228719
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCInstrInfo.td | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.td b/llvm/lib/Target/PowerPC/PPCInstrInfo.td index 36f7f5a2462..f6cc93dcf26 100644 --- a/llvm/lib/Target/PowerPC/PPCInstrInfo.td +++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.td @@ -3566,6 +3566,9 @@ def : InstAlias<"rotlw. $rA, $rS, $rB", (RLWNMo gprc:$rA, gprc:$rS, gprc:$rB, 0, def : InstAlias<"clrlwi $rA, $rS, $n", (RLWINM gprc:$rA, gprc:$rS, 0, u5imm:$n, 31)>; def : InstAlias<"clrlwi. $rA, $rS, $n", (RLWINMo gprc:$rA, gprc:$rS, 0, u5imm:$n, 31)>; +def : InstAlias<"cntlz $rA, $rS", (CNTLZW gprc:$rA, gprc:$rS)>; +def : InstAlias<"cntlz. $rA, $rS", (CNTLZWo gprc:$rA, gprc:$rS)>; + def EXTLDI : PPCAsmPseudo<"extldi $rA, $rS, $n, $b", (ins g8rc:$rA, g8rc:$rS, u6imm:$n, u6imm:$b)>; def EXTLDIo : PPCAsmPseudo<"extldi. $rA, $rS, $n, $b", |
