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i965: Fix ARL to work on gen6.

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RNDD isn't one of the instructions that can do conversion from
execution type to destination type.

Fixes glsl-vs-arrays-3.
(cherry picked from commit 7cec7bf56c)
This commit is contained in:
Eric Anholt 2010-12-13 11:44:26 -08:00
parent 9a6d7d7eb8
commit da4ecaef8a
1 changed files with 17 additions and 1 deletions
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18
src/mesa/drivers/dri/i965/brw_vs_emit.c
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@ -658,6 +658,22 @@ static void emit_min( struct brw_compile *p,
}
}
static void emit_arl(struct brw_compile *p,
struct brw_reg dst,
struct brw_reg src)
{
struct intel_context *intel = &p->brw->intel;
if (intel->gen >= 6) {
struct brw_reg dst_f = retype(dst, BRW_REGISTER_TYPE_F);
brw_RNDD(p, dst_f, src);
brw_MOV(p, dst, dst_f);
} else {
brw_RNDD(p, dst, src);
}
}
static void emit_math1_gen4(struct brw_vs_compile *c,
GLuint function,
struct brw_reg dst,
@ -1959,7 +1975,7 @@ void brw_vs_emit(struct brw_vs_compile *c )
emit_math1(c, BRW_MATH_FUNCTION_EXP, dst, args[0], BRW_MATH_PRECISION_FULL);
break;
case OPCODE_ARL:
brw_RNDD(p, dst, args[0]);
emit_arl(p, dst, args[0]);
break;
case OPCODE_FLR:
brw_RNDD(p, dst, args[0]);