diff options
Diffstat (limited to 'lib/Target/Sparc/SparcInstrInfo.td')
| -rw-r--r-- | lib/Target/Sparc/SparcInstrInfo.td | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/lib/Target/Sparc/SparcInstrInfo.td b/lib/Target/Sparc/SparcInstrInfo.td index 470de70b45..e6a9cf53d1 100644 --- a/lib/Target/Sparc/SparcInstrInfo.td +++ b/lib/Target/Sparc/SparcInstrInfo.td @@ -807,20 +807,22 @@ def FDIVQ : F3_3<2, 0b110100, 0b001001111, // Floating-point Compare Instructions, p. 148 // Note: the 2nd template arg is different for these guys. // Note 2: the result of a FCMP is not available until the 2nd cycle -// after the instr is retired, but there is no interlock. This behavior -// is modelled with a forced noop after the instruction. +// after the instr is retired, but there is no interlock in Sparc V8. +// This behavior is modeled with a forced noop after the instruction in +// DelaySlotFiller. + let Defs = [FCC] in { def FCMPS : F3_3c<2, 0b110101, 0b001010001, (outs), (ins FPRegs:$src1, FPRegs:$src2), - "fcmps $src1, $src2\n\tnop", + "fcmps $src1, $src2", [(SPcmpfcc f32:$src1, f32:$src2)]>; def FCMPD : F3_3c<2, 0b110101, 0b001010010, (outs), (ins DFPRegs:$src1, DFPRegs:$src2), - "fcmpd $src1, $src2\n\tnop", + "fcmpd $src1, $src2", [(SPcmpfcc f64:$src1, f64:$src2)]>; def FCMPQ : F3_3c<2, 0b110101, 0b001010011, (outs), (ins QFPRegs:$src1, QFPRegs:$src2), - "fcmpq $src1, $src2\n\tnop", + "fcmpq $src1, $src2", [(SPcmpfcc f128:$src1, f128:$src2)]>, Requires<[HasHardQuad]>; } |