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i965: Fix nested loops in the VS.

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We were patching up all the break and continues between the start of
our loop and the end of our loop, even if they were breaks/continues
for an inner loop.  Avoiding patching already patched breaks/continues
fixes piglit glsl-vs-loop-nested.
(cherry picked from commit f6f547d87e)
This commit is contained in:
Eric Anholt 2010-03-09 09:56:42 -08:00
parent 009392f50d
commit d24f59d008
1 changed files with 4 additions and 2 deletions
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6
src/mesa/drivers/dri/i965/brw_vs_emit.c
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@ -1717,11 +1717,13 @@ void brw_vs_emit(struct brw_vs_compile *c )
/* patch all the BREAK/CONT instructions from last BEGINLOOP */
while (inst0 > loop_inst[loop_depth]) {
inst0--;
if (inst0->header.opcode == BRW_OPCODE_BREAK) {
if (inst0->header.opcode == BRW_OPCODE_BREAK &&
inst0->bits3.if_else.jump_count == 0) {
inst0->bits3.if_else.jump_count = br * (inst1 - inst0 + 1);
inst0->bits3.if_else.pop_count = 0;
}
else if (inst0->header.opcode == BRW_OPCODE_CONTINUE) {
else if (inst0->header.opcode == BRW_OPCODE_CONTINUE &&
inst0->bits3.if_else.jump_count == 0) {
inst0->bits3.if_else.jump_count = br * (inst1 - inst0);
inst0->bits3.if_else.pop_count = 0;
}