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authorMatt Turner <[email protected]>2015-10-09 12:27:04 -0700
committerMatt Turner <[email protected]>2015-10-11 16:19:52 -0700
commit4642d53a03122e6d3214ed12cb327898917eb84e (patch)
tree77dbbc7c56aaff42f73dab4486671dfe58cab02e /src/mesa/drivers/dri
parent9fe458335ffd35366ef0f4b741aad0cdb3503783 (diff)
i965/vec4: Implement b2f and b2i using negation.
Curro added this in commit 3ee2daf23d (before the vec4/NIR backend was added) but it was missed in the new NIR backend. Add it there as well. instructions in affected programs: 1857 -> 1810 (-2.53%) helped: 15 Reviewed-by: Francisco Jerez <[email protected]>
Diffstat (limited to 'src/mesa/drivers/dri')
-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4_nir.cpp8
1 files changed, 1 insertions, 7 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
index 41bd80df377..fdf767ded64 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
@@ -1237,14 +1237,8 @@ vec4_visitor::nir_emit_alu(nir_alu_instr *instr)
break;
case nir_op_b2i:
- emit(AND(dst, op[0], src_reg(1)));
- break;
-
case nir_op_b2f:
- op[0].type = BRW_REGISTER_TYPE_D;
- dst.type = BRW_REGISTER_TYPE_D;
- emit(AND(dst, op[0], src_reg(0x3f800000u)));
- dst.type = BRW_REGISTER_TYPE_F;
+ emit(MOV(dst, negate(op[0])));
break;
case nir_op_f2b: