diff options
Diffstat (limited to 'lib/Target/SystemZ/SystemZOperators.td')
| -rw-r--r-- | lib/Target/SystemZ/SystemZOperators.td | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Target/SystemZ/SystemZOperators.td b/lib/Target/SystemZ/SystemZOperators.td index 8d6c619..59e1ffc 100644 --- a/lib/Target/SystemZ/SystemZOperators.td +++ b/lib/Target/SystemZ/SystemZOperators.td @@ -240,6 +240,14 @@ def or_as_revinserti8 : PatFrag<(ops node:$src1, node:$src2), APInt::getLowBitsSet(BitWidth, 8)); }]>; +// Integer absolute, matching the canonical form generated by DAGCombiner. +def z_iabs32 : PatFrag<(ops node:$src), + (xor (add node:$src, (sra node:$src, (i32 31))), + (sra node:$src, (i32 31)))>; +def z_iabs64 : PatFrag<(ops node:$src), + (xor (add node:$src, (sra node:$src, (i32 63))), + (sra node:$src, (i32 63)))>; + // Fused multiply-add and multiply-subtract, but with the order of the // operands matching SystemZ's MA and MS instructions. def z_fma : PatFrag<(ops node:$src1, node:$src2, node:$src3), |