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r600g/sb: fix handling of preloaded inputs for compute shaders

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For compute shaders we need to let the backend know that
GPRs 0 and 1 are preloaded with some compute-specific input
values, otherwise any use of these regs without previous
definition is considered as undefined value and usually
is simply replaced with 0.

Signed-off-by: Vadim Girlin <vadimgirlin@gmail.com>
This commit is contained in:
Vadim Girlin 2013-05-25 22:56:53 +04:00
parent fd9fe4470b
commit 44a117ab9a
1 changed files with 4 additions and 0 deletions
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4
src/gallium/drivers/r600/sb/sb_bc_parser.cpp
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@ -111,6 +111,10 @@ int bc_parser::parse_decls() {
if (!pshader) {
if (gpr_reladdr)
sh->add_gpr_array(0, bc->ngpr, 0x0F);
// compute shaders have some values preloaded in R0, R1
sh->add_input(0 /* GPR */, true /* preloaded */, 0x0F /* mask */);
sh->add_input(1 /* GPR */, true /* preloaded */, 0x0F /* mask */);
return 0;
}