i965/vec4_visitor: Make some function arguments const references

Reviewed-by: Matt Turner <mattst88@gmail.com>

diff --git a/src/mesa/drivers/dri/i965/brw_vec4.h b/src/mesa/drivers/dri/i965/brw_vec4.h
index 0c13d43..341c516 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_vec4.h
+++ b/src/mesa/drivers/dri/i965/brw_vec4.h
@@ -319,13 +319,13 @@ public:
    void emit_scalar(ir_instruction *ir, enum prog_opcode op,
                    dst_reg dst, src_reg src0, src_reg src1);
 
-   src_reg fix_3src_operand(src_reg src);
-   src_reg resolve_source_modifiers(const src_reg& src);
+   src_reg fix_3src_operand(const src_reg &src);
+   src_reg resolve_source_modifiers(const src_reg &src);
 
    vec4_instruction *emit_math(enum opcode opcode, const dst_reg &dst, const src_reg &src0,
                                const src_reg &src1 = src_reg());
 
-   src_reg fix_math_operand(src_reg src);
+   src_reg fix_math_operand(const src_reg &src);
 
    void emit_pack_half_2x16(dst_reg dst, src_reg src0);
    void emit_unpack_half_2x16(dst_reg dst, src_reg src0);

diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
index 57d98c9..34dd715 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
@@ -287,7 +287,7 @@ vec4_visitor::emit_dp(dst_reg dst, src_reg src0, src_reg src1, unsigned elements
 }
 
 src_reg
-vec4_visitor::fix_3src_operand(src_reg src)
+vec4_visitor::fix_3src_operand(const src_reg &src)
 {
    /* Using vec4 uniforms in SIMD4x2 programs is difficult. You'd like to be
     * able to use vertical stride of zero to replicate the vec4 uniform, like
@@ -313,7 +313,7 @@ vec4_visitor::fix_3src_operand(src_reg src)
 }
 
 src_reg
-vec4_visitor::resolve_source_modifiers(const src_reg& src)
+vec4_visitor::resolve_source_modifiers(const src_reg &src)
 {
    if (!src.abs && !src.negate)
       return src;
@@ -326,7 +326,7 @@ vec4_visitor::resolve_source_modifiers(const src_reg& src)
 }
 
 src_reg
-vec4_visitor::fix_math_operand(src_reg src)
+vec4_visitor::fix_math_operand(const src_reg &src)
 {
    if (devinfo->gen < 6 || devinfo->gen >= 8 || src.file == BAD_FILE)
       return src;