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| author | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-08-07 11:03:34 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-08-07 11:03:34 +0000 |
| commit | e0bbf7288c00c377a97a9d4bf5fb0bf20c44cd1c (patch) | |
| tree | 135e0f5a045189d9e3910753a4c931a3c6c919ff /lib/Target/SystemZ/SystemZInstrFP.td | |
| parent | c11b107f21f8f1baf1021999fc7d01b93e00922b (diff) | |
| download | external_llvm-e0bbf7288c00c377a97a9d4bf5fb0bf20c44cd1c.zip external_llvm-e0bbf7288c00c377a97a9d4bf5fb0bf20c44cd1c.tar.gz external_llvm-e0bbf7288c00c377a97a9d4bf5fb0bf20c44cd1c.tar.bz2 | |
[SystemZ] Add floating-point load-and-test instructions
These instructions can also be used as comparisons with zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187882 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/SystemZ/SystemZInstrFP.td')
| -rw-r--r-- | lib/Target/SystemZ/SystemZInstrFP.td | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/Target/SystemZ/SystemZInstrFP.td b/lib/Target/SystemZ/SystemZInstrFP.td index 23a3790..47d864b 100644 --- a/lib/Target/SystemZ/SystemZInstrFP.td +++ b/lib/Target/SystemZ/SystemZInstrFP.td @@ -39,6 +39,17 @@ let neverHasSideEffects = 1 in { def LXR : UnaryRRE<"lx", 0xB365, null_frag, FP128, FP128>; } +// Moves between two floating-point registers that also set the condition +// codes. +let Defs = [CC] in { + defm LTEBR : LoadAndTestRRE<"lteb", 0xB302, FP32>; + defm LTDBR : LoadAndTestRRE<"ltdb", 0xB312, FP64>; + defm LTXBR : LoadAndTestRRE<"ltxb", 0xB342, FP128>; +} +def : CompareZeroFP<LTEBRCompare, FP32>; +def : CompareZeroFP<LTDBRCompare, FP64>; +def : CompareZeroFP<LTXBRCompare, FP128>; + // Moves between 64-bit integer and floating-point registers. def LGDR : UnaryRRE<"lgd", 0xB3CD, bitconvert, GR64, FP64>; def LDGR : UnaryRRE<"ldg", 0xB3C1, bitconvert, FP64, GR64>; |