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i965/fs: Remove is_valid_3src() checks from emit_lrp. 

The visitor emits MOVs to temporary registers for immediates, so these
never trigger. For further proof, check case ir_triop_fma.

Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
This commit is contained in:
Matt Turner 2014-11-12 11:07:01 -08:00
parent 1fdc75fde4
commit 0777775274
1 changed files with 1 additions and 4 deletions
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5
src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
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@ -226,10 +226,7 @@ void
fs_visitor::emit_lrp(const fs_reg &dst, const fs_reg &x, const fs_reg &y,
const fs_reg &a)
{
if (brw->gen < 6 ||
!x.is_valid_3src() ||
!y.is_valid_3src() ||
!a.is_valid_3src()) {
if (brw->gen < 6) {
/* We can't use the LRP instruction. Emit x*(1-a) + y*a. */
fs_reg y_times_a = fs_reg(this, glsl_type::float_type);
fs_reg one_minus_a = fs_reg(this, glsl_type::float_type);