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freedreno/ir3: negate result of USLT/etc

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Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Rob Clark <robclark@freedesktop.org>
This commit is contained in:
Ilia Mirkin 2014-09-09 22:52:55 -04:00 • committed by Rob Clark
parent 8edf83b377
commit 11d72553c5
1 changed files with 15 additions and 8 deletions
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23
src/gallium/drivers/freedreno/ir3/ir3_compiler.c
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@ -1445,22 +1445,22 @@ trans_cmp(const struct instr_translater *t,
}
/*
* USNE(a,b) = (a != b) ? 1 : 0
* USNE(a,b) = (a != b) ? ~0 : 0
* cmps.u32.ne dst, a, b
*
* USEQ(a,b) = (a == b) ? 1 : 0
* USEQ(a,b) = (a == b) ? ~0 : 0
* cmps.u32.eq dst, a, b
*
* ISGE(a,b) = (a > b) ? 1 : 0
* ISGE(a,b) = (a > b) ? ~0 : 0
* cmps.s32.ge dst, a, b
*
* USGE(a,b) = (a > b) ? 1 : 0
* USGE(a,b) = (a > b) ? ~0 : 0
* cmps.u32.ge dst, a, b
*
* ISLT(a,b) = (a < b) ? 1 : 0
* ISLT(a,b) = (a < b) ? ~0 : 0
* cmps.s32.lt dst, a, b
*
* USLT(a,b) = (a < b) ? 1 : 0
* USLT(a,b) = (a < b) ? ~0 : 0
* cmps.u32.lt dst, a, b
*
* UCMP(a,b,c) = (a < 0) ? b : c
@ -1526,10 +1526,17 @@ trans_icmp(const struct instr_translater *t,
instr = instr_create(ctx, 3, OPC_SEL_B32);
vectorize(ctx, instr, dst, 3, a1, 0, tmp_src, 0, a2, 0);
} else {
/* cmps.{u32,s32}.<cond> dst, a0, a1 */
struct tgsi_dst_register tmp_dst;
struct tgsi_src_register *tmp_src;
tmp_src = get_internal_temp(ctx, &tmp_dst);
/* cmps.{u32,s32}.<cond> tmp, a0, a1 */
instr = instr_create(ctx, 2, t->opc);
instr->cat2.condition = condition;
vectorize(ctx, instr, dst, 2, a0, 0, a1, 0);
vectorize(ctx, instr, &tmp_dst, 2, a0, 0, a1, 0);
/* absneg.s dst, (neg)tmp */
instr = instr_create(ctx, 2, OPC_ABSNEG_S);
vectorize(ctx, instr, dst, 1, tmp_src, IR3_REG_NEGATE);
}
put_dst(ctx, inst, dst);
}