diff options
Diffstat (limited to 'src/gallium/drivers')
| -rw-r--r-- | src/gallium/drivers/vc4/vc4_opt_algebraic.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/gallium/drivers/vc4/vc4_opt_algebraic.c b/src/gallium/drivers/vc4/vc4_opt_algebraic.c index 435814e6912..c1144583f63 100644 --- a/src/gallium/drivers/vc4/vc4_opt_algebraic.c +++ b/src/gallium/drivers/vc4/vc4_opt_algebraic.c @@ -99,6 +99,18 @@ replace_with_mov(struct vc4_compile *c, struct qinst *inst, struct qreg arg) } static bool +add_replace_zero(struct vc4_compile *c, + struct qinst **defs, + struct qinst *inst, + int arg) +{ + if (!is_zero(c, defs, inst->src[arg])) + return false; + replace_with_mov(c, inst, inst->src[1 - arg]); + return true; +} + +static bool fmul_replace_zero(struct vc4_compile *c, struct qinst **defs, struct qinst *inst, @@ -181,7 +193,21 @@ qir_opt_algebraic(struct vc4_compile *c) } break; + case QOP_ADD: + if (add_replace_zero(c, defs, inst, 0) || + add_replace_zero(c, defs, inst, 1)) { + progress = true; + break; + } + break; + case QOP_FADD: + if (add_replace_zero(c, defs, inst, 0) || + add_replace_zero(c, defs, inst, 1)) { + progress = true; + break; + } + /* FADD(a, FSUB(0, b)) -> FSUB(a, b) */ if (inst->src[1].file == QFILE_TEMP && defs[inst->src[1].index]->op == QOP_FSUB) { |