diff options
Diffstat (limited to 'contrib/llvm/lib/Target/X86/X86InstrFMA.td')
| -rw-r--r-- | contrib/llvm/lib/Target/X86/X86InstrFMA.td | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/contrib/llvm/lib/Target/X86/X86InstrFMA.td b/contrib/llvm/lib/Target/X86/X86InstrFMA.td index 2993e42..7cc3b59 100644 --- a/contrib/llvm/lib/Target/X86/X86InstrFMA.td +++ b/contrib/llvm/lib/Target/X86/X86InstrFMA.td @@ -183,19 +183,24 @@ multiclass fma3s<bits<8> opc132, bits<8> opc213, bits<8> opc231, defm SD : fma3s_forms<opc132, opc213, opc231, OpStr, "sd", "PD", IntF64, OpNode, FR64, f64, f64mem, sdmem, loadf64, sse_load_f64>, VEX_W; +// These patterns use the 123 ordering, instead of 213, even though +// they match the intrinsic to the 213 version of the instruction. +// This is because src1 is tied to dest, and the scalar intrinsics +// require the pass-through values to come from the first source +// operand, not the second. def : Pat<(IntF32 VR128:$src1, VR128:$src2, VR128:$src3), (COPY_TO_REGCLASS (!cast<Instruction>(NAME#"SSr213r") - (COPY_TO_REGCLASS $src2, FR32), (COPY_TO_REGCLASS $src1, FR32), + (COPY_TO_REGCLASS $src2, FR32), (COPY_TO_REGCLASS $src3, FR32)), VR128)>; def : Pat<(IntF64 VR128:$src1, VR128:$src2, VR128:$src3), (COPY_TO_REGCLASS (!cast<Instruction>(NAME#"SDr213r") - (COPY_TO_REGCLASS $src2, FR64), (COPY_TO_REGCLASS $src1, FR64), + (COPY_TO_REGCLASS $src2, FR64), (COPY_TO_REGCLASS $src3, FR64)), VR128)>; } |
