[Mesa-dev] [PATCH 2/3] i965/vec4: Don't fix_math_operand() on Gen >= 8.

Matt Turner mattst88 at gmail.com
Mon Jun 23 13:30:14 PDT 2014


The emit_math?_gen? functions serve to implement workarounds for the
math instruction, none of which exist on Gen8+.
---
 src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
index f3316f8..3a360d4 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
@@ -365,7 +365,9 @@ vec4_visitor::emit_math(opcode opcode, dst_reg dst, src_reg src)
       return;
    }
 
-   if (brw->gen >= 6) {
+   if (brw->gen >= 8) {
+      emit(opcode, dst, src);
+   } else if (brw->gen >= 6) {
       emit_math1_gen6(opcode, dst, src);
    } else {
       emit_math1_gen4(opcode, dst, src);
@@ -417,7 +419,9 @@ vec4_visitor::emit_math(enum opcode opcode,
       return;
    }
 
-   if (brw->gen >= 6) {
+   if (brw->gen >= 8) {
+      emit(opcode, dst, src0, src1);
+   } else if (brw->gen >= 6) {
       emit_math2_gen6(opcode, dst, src0, src1);
    } else {
       emit_math2_gen4(opcode, dst, src0, src1);
-- 
1.8.3.2



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