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vc4: Don't try the SF coalescing unless it's on a def.

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If you want the SF of the value of a register produced from a series of
packing MOVs or conditional MOVs, we can't just SF on the last MOV into
the register.
This commit is contained in:
Eric Anholt
2016-01-04 13:56:39 -08:00
parent 1953cee6d7
commit 0a89f307f9
1 changed files with 3 additions and 3 deletions
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6
src/gallium/drivers/vc4/vc4_qir.c
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@@ -503,9 +503,9 @@ qir_SF(struct vc4_compile *c, struct qreg src)
if (!list_empty(&c->instructions)) if (!list_empty(&c->instructions))
last_inst = (struct qinst *)c->instructions.prev; last_inst = (struct qinst *)c->instructions.prev;
if (!last_inst || if (src.file != QFILE_TEMP ||
last_inst->dst.file != src.file || !c->defs[src.index] ||
last_inst->dst.index != src.index || last_inst != c->defs[src.index] ||
qir_is_multi_instruction(last_inst)) { qir_is_multi_instruction(last_inst)) {
src = qir_MOV(c, src); src = qir_MOV(c, src);
last_inst = (struct qinst *)c->instructions.prev; last_inst = (struct qinst *)c->instructions.prev;