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| author | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-08-28 10:31:43 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-08-28 10:31:43 +0000 |
| commit | 477168192c98e1f75a5bc6db3d34a177f327bd34 (patch) | |
| tree | 29024a631a02e26dd2d4634abed8612c5469ca0c /lib/Target/SystemZ/SystemZISelLowering.h | |
| parent | a6c3a4ee76ef8464d3c83472e15af521ade7eeb4 (diff) | |
| download | external_llvm-477168192c98e1f75a5bc6db3d34a177f327bd34.zip external_llvm-477168192c98e1f75a5bc6db3d34a177f327bd34.tar.gz external_llvm-477168192c98e1f75a5bc6db3d34a177f327bd34.tar.bz2 | |
[SystemZ] Add support for TMHH, TMHL, TMLH and TMLL
For now just handles simple comparisons of an ANDed value with zero.
The CC value provides enough information to do any comparison for a
2-bit mask, and some nonzero comparisons with more populated masks,
but that's all future work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189469 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/SystemZ/SystemZISelLowering.h')
| -rw-r--r-- | lib/Target/SystemZ/SystemZISelLowering.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/SystemZ/SystemZISelLowering.h b/lib/Target/SystemZ/SystemZISelLowering.h index 9831777..ec5051f 100644 --- a/lib/Target/SystemZ/SystemZISelLowering.h +++ b/lib/Target/SystemZ/SystemZISelLowering.h @@ -45,6 +45,10 @@ namespace SystemZISD { // Likewise unsigned integer comparison. UCMP, + // Test under mask. The first operand is ANDed with the second operand + // and the condition codes are set on the result. + TM, + // Branches if a condition is true. Operand 0 is the chain operand; // operand 1 is the 4-bit condition-code mask, with bit N in // big-endian order meaning "branch if CC=N"; operand 2 is the |