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i965/vec4: Return the emitted instruction in emit_lrp()

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Needed in the NIR backend to set the "saturate" value of the
instruction.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
This commit is contained in:
Antia Puentes
2015-06-17 10:01:07 +02:00
committed by Jason Ekstrand
parent b64bd1fdc3
commit 314474872b
2 changed files with 6 additions and 6 deletions
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src/mesa/drivers/dri/i965/brw_vec4.h
+2 -2
View File
@@ -294,8 +294,8 @@ public:
vec4_instruction *emit_minmax(enum brw_conditional_mod conditionalmod, dst_reg dst,
src_reg src0, src_reg src1);
void emit_lrp(const dst_reg &dst,
const src_reg &x, const src_reg &y, const src_reg &a);
vec4_instruction *emit_lrp(const dst_reg &dst, const src_reg &x,
const src_reg &y, const src_reg &a);
/**
* Copy any live channel from \p src to the first channel of the
src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+4 -4
View File
@@ -1285,7 +1285,7 @@ vec4_visitor::emit_minmax(enum brw_conditional_mod conditionalmod, dst_reg dst,
return inst;
}
void
vec4_instruction *
vec4_visitor::emit_lrp(const dst_reg &dst,
const src_reg &x, const src_reg &y, const src_reg &a)
{
@@ -1293,8 +1293,8 @@ vec4_visitor::emit_lrp(const dst_reg &dst,
/* Note that the instruction's argument order is reversed from GLSL
* and the IR.
*/
emit(LRP(dst,
fix_3src_operand(a), fix_3src_operand(y), fix_3src_operand(x)));
return emit(LRP(dst, fix_3src_operand(a), fix_3src_operand(y),
fix_3src_operand(x)));
} else {
/* Earlier generations don't support three source operations, so we
* need to emit x*(1-a) + y*a.
@@ -1309,7 +1309,7 @@ vec4_visitor::emit_lrp(const dst_reg &dst,
emit(MUL(y_times_a, y, a));
emit(ADD(one_minus_a, negate(a), src_reg(1.0f)));
emit(MUL(x_times_one_minus_a, x, src_reg(one_minus_a)));
emit(ADD(dst, src_reg(x_times_one_minus_a), src_reg(y_times_a)));
return emit(ADD(dst, src_reg(x_times_one_minus_a), src_reg(y_times_a)));
}
}