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i965/fs_fp: Use null_reg from fs_visitor instead of rolling our own

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Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=84529
Reviewed-by: Matt Turner <mattst88@gmail.com>
This commit is contained in:
Jason Ekstrand
2014-10-01 10:27:24 -07:00
parent 7309c6126f
commit 75986830b4
1 changed files with 4 additions and 6 deletions
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src/mesa/drivers/dri/i965/brw_fs_fp.cpp
+4 -6
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@@ -115,8 +115,6 @@ fs_visitor::emit_fragment_program_code()
{
setup_fp_regs();
fs_reg null = fs_reg(brw_null_reg());
/* Keep a reg with 1.0 around, for reuse by emit_fp_sop so that it can just
* be:
*
@@ -163,7 +161,7 @@ fs_visitor::emit_fragment_program_code()
if (fpi->DstReg.WriteMask & (1 << i)) {
fs_inst *inst;
emit(CMP(null, offset(src[0], i), fs_reg(0.0f),
emit(CMP(reg_null_f, offset(src[0], i), fs_reg(0.0f),
BRW_CONDITIONAL_L));
inst = emit(BRW_OPCODE_SEL, offset(dst, i),
@@ -250,8 +248,8 @@ fs_visitor::emit_fragment_program_code()
* undiscarded pixels, and updates just those pixels to be
* turned off.
*/
fs_inst *cmp = emit(CMP(null, offset(src[0], i), fs_reg(0.0f),
BRW_CONDITIONAL_GE));
fs_inst *cmp = emit(CMP(reg_null_f, offset(src[0], i),
fs_reg(0.0f), BRW_CONDITIONAL_GE));
cmp->predicate = BRW_PREDICATE_NORMAL;
cmp->flag_subreg = 1;
}
@@ -283,7 +281,7 @@ fs_visitor::emit_fragment_program_code()
if (fpi->DstReg.WriteMask & WRITEMASK_YZ) {
fs_inst *inst;
emit(CMP(null, offset(src[0], 0), fs_reg(0.0f),
emit(CMP(reg_null_f, offset(src[0], 0), fs_reg(0.0f),
BRW_CONDITIONAL_LE));
if (fpi->DstReg.WriteMask & WRITEMASK_Y) {