diff options
Diffstat (limited to 'llvm/lib/Target/SystemZ/SystemZPatterns.td')
| -rw-r--r-- | llvm/lib/Target/SystemZ/SystemZPatterns.td | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Target/SystemZ/SystemZPatterns.td b/llvm/lib/Target/SystemZ/SystemZPatterns.td index 74cc5f019a8..c442ae0d95d 100644 --- a/llvm/lib/Target/SystemZ/SystemZPatterns.td +++ b/llvm/lib/Target/SystemZ/SystemZPatterns.td @@ -79,3 +79,9 @@ multiclass MVCLoadStore<SDPatternOperator load, SDPatternOperator store, bdaddr12only:$src), (insn bdaddr12only:$dest, bdaddr12only:$src, length)>; } + +// Record that INSN is a LOAD AND TEST that can be used to compare +// registers in CLS against zero. The instruction has separate R1 and R2 +// operands, but they must be the same when the instruction is used like this. +class CompareZeroFP<Instruction insn, RegisterOperand cls> + : Pat<(z_cmp cls:$reg, (fpimm0)), (insn cls:$reg, cls:$reg)>; |
