diff options
Diffstat (limited to 'lib/Target/R600/SIInstructions.td')
| -rw-r--r-- | lib/Target/R600/SIInstructions.td | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/lib/Target/R600/SIInstructions.td b/lib/Target/R600/SIInstructions.td index e1eb95580ac..00ce9bfcc26 100644 --- a/lib/Target/R600/SIInstructions.td +++ b/lib/Target/R600/SIInstructions.td @@ -2499,17 +2499,21 @@ def : Pat < /********** Interpolation Paterns **********/ /********** ===================== **********/ +// The value of $params is constant through out the entire kernel. +// We need to use S_MOV_B32 $params, because CSE ignores copies, so +// without it we end up with a lot of redundant moves. + def : Pat < (int_SI_fs_constant imm:$attr_chan, imm:$attr, i32:$params), - (V_INTERP_MOV_F32 INTERP.P0, imm:$attr_chan, imm:$attr, $params) + (V_INTERP_MOV_F32 INTERP.P0, imm:$attr_chan, imm:$attr, (S_MOV_B32 $params)) >; def : Pat < - (int_SI_fs_interp imm:$attr_chan, imm:$attr, M0Reg:$params, v2i32:$ij), + (int_SI_fs_interp imm:$attr_chan, imm:$attr, i32:$params, v2i32:$ij), (V_INTERP_P2_F32 (V_INTERP_P1_F32 (EXTRACT_SUBREG v2i32:$ij, sub0), - imm:$attr_chan, imm:$attr, i32:$params), + imm:$attr_chan, imm:$attr, (S_MOV_B32 $params)), (EXTRACT_SUBREG $ij, sub1), - imm:$attr_chan, imm:$attr, $params) + imm:$attr_chan, imm:$attr, (S_MOV_B32 $params)) >; /********** ================== **********/ |