diff options
Diffstat (limited to 'llvm/lib/Target/PowerPC/PPCInstrVSX.td')
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCInstrVSX.td | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCInstrVSX.td b/llvm/lib/Target/PowerPC/PPCInstrVSX.td index 35a9cdacaf6..a4a88657033 100644 --- a/llvm/lib/Target/PowerPC/PPCInstrVSX.td +++ b/llvm/lib/Target/PowerPC/PPCInstrVSX.td @@ -1066,6 +1066,10 @@ def : Pat<(v4f32 (PPCxxswapd v4f32:$src)), (XXPERMDI $src, $src, 2)>; def : Pat<(v4i32 (PPCxxswapd v4i32:$src)), (XXPERMDI $src, $src, 2)>; def : Pat<(v2f64 (PPCswapNoChain v2f64:$src)), (XXPERMDI $src, $src, 2)>; +// PPCvecshl XT, XA, XA, 2 can be selected to both XXSLDWI XT,XA,XA,2 and +// XXSWAPD XT,XA (i.e. XXPERMDI XT,XA,XA,2), the later one is more profitable. +def : Pat<(v4i32 (PPCvecshl v4i32:$src, v4i32:$src, 2)), (XXPERMDI $src, $src, 2)>; + // Selects. def : Pat<(v2f64 (selectcc i1:$lhs, i1:$rhs, v2f64:$tval, v2f64:$fval, SETLT)), (SELECT_VSRC (CRANDC $lhs, $rhs), $tval, $fval)>; |
