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r300/compiler: disable the rename_regs pass for loops

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This workaround fixes rendering of kwin thumbnails.

NOTE: This is a candidate for the 7.9 and 7.10 branches.
(cherry picked from commit 8543902bfb)
This commit is contained in:
Marek Olšák 2011-01-04 21:54:23 +01:00
parent ca8e49f303
commit 14950c50e1
1 changed files with 8 additions and 0 deletions
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8
src/mesa/drivers/dri/r300/compiler/radeon_rename_regs.c
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@ -51,6 +51,14 @@ void rc_rename_regs(struct radeon_compiler *c, void *user)
struct rc_reader_data reader_data;
unsigned char * used;
/* XXX Remove this once the register allocation works with flow control. */
for(inst = c->Program.Instructions.Next;
inst != &c->Program.Instructions;
inst = inst->Next) {
if (inst->U.I.Opcode == RC_OPCODE_BGNLOOP)
return;
}
used_length = 2 * rc_recompute_ips(c);
used = memory_pool_malloc(&c->Pool, sizeof(unsigned char) * used_length);
memset(used, 0, sizeof(unsigned char) * used_length);