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| author | Ulrich Weigand <ulrich.weigand@de.ibm.com> | 2013-07-08 14:49:37 +0000 |
|---|---|---|
| committer | Ulrich Weigand <ulrich.weigand@de.ibm.com> | 2013-07-08 14:49:37 +0000 |
| commit | 9e5bbeab1f6f79375c24bfab87c28f5f4c5afea1 (patch) | |
| tree | d7794fe873c7671e16701d0c7e323890948ed638 /lib/Target/PowerPC/PPCInstrInfo.td | |
| parent | a012a666888ddd92858eda808af480a01f34bd1e (diff) | |
| download | llvm-9e5bbeab1f6f79375c24bfab87c28f5f4c5afea1.tar.gz llvm-9e5bbeab1f6f79375c24bfab87c28f5f4c5afea1.tar.bz2 llvm-9e5bbeab1f6f79375c24bfab87c28f5f4c5afea1.tar.xz | |
[PowerPC] Support basic compare mnemonics
This adds support for the basic mnemoics (with the L operand) for the
fixed-point compare instructions. These are defined as aliases for the
already existing CMPW/CMPD patterns, depending on the value of L.
This requires use of InstAlias patterns with immediate literal operands.
To make this work, we need two further changes:
- define a RegisterPrefix, because otherwise literals 0 and 1 would
be parsed as literal register names
- provide a PPCAsmParser::validateTargetOperandClass routine to
recognize immediate literals (like ARM does)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185826 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/PPCInstrInfo.td')
| -rw-r--r-- | lib/Target/PowerPC/PPCInstrInfo.td | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/Target/PowerPC/PPCInstrInfo.td b/lib/Target/PowerPC/PPCInstrInfo.td index fbf61f063a..3aafb5c963 100644 --- a/lib/Target/PowerPC/PPCInstrInfo.td +++ b/lib/Target/PowerPC/PPCInstrInfo.td @@ -2578,6 +2578,15 @@ def : InstAlias<"cmpd $rA, $rB", (CMPD CR0, g8rc:$rA, g8rc:$rB)>; def : InstAlias<"cmpldi $rA, $imm", (CMPLDI CR0, g8rc:$rA, u16imm:$imm)>; def : InstAlias<"cmpld $rA, $rB", (CMPLD CR0, g8rc:$rA, g8rc:$rB)>; +def : InstAlias<"cmpi $bf, 0, $rA, $imm", (CMPWI crrc:$bf, gprc:$rA, s16imm:$imm)>; +def : InstAlias<"cmp $bf, 0, $rA, $rB", (CMPW crrc:$bf, gprc:$rA, gprc:$rB)>; +def : InstAlias<"cmpli $bf, 0, $rA, $imm", (CMPLWI crrc:$bf, gprc:$rA, u16imm:$imm)>; +def : InstAlias<"cmpl $bf, 0, $rA, $rB", (CMPLW crrc:$bf, gprc:$rA, gprc:$rB)>; +def : InstAlias<"cmpi $bf, 1, $rA, $imm", (CMPDI crrc:$bf, g8rc:$rA, s16imm:$imm)>; +def : InstAlias<"cmp $bf, 1, $rA, $rB", (CMPD crrc:$bf, g8rc:$rA, g8rc:$rB)>; +def : InstAlias<"cmpli $bf, 1, $rA, $imm", (CMPLDI crrc:$bf, g8rc:$rA, u16imm:$imm)>; +def : InstAlias<"cmpl $bf, 1, $rA, $rB", (CMPLD crrc:$bf, g8rc:$rA, g8rc:$rB)>; + multiclass TrapExtendedMnemonic<string name, int to> { def : InstAlias<"td"#name#"i $rA, $imm", (TDI to, g8rc:$rA, s16imm:$imm)>; def : InstAlias<"td"#name#" $rA, $rB", (TD to, g8rc:$rA, g8rc:$rB)>; |