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ac: handle undefined EQAA samples in ac_apply_fmask_to_sample

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RADV might wanna use this helper too.

Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
This commit is contained in:
Marek Olšák 2018-05-17 23:23:24 -04:00
parent a2d4c8ff6d
commit e5e57c3a5e
1 changed files with 4 additions and 2 deletions
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6
src/amd/common/ac_llvm_build.c
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@ -2747,11 +2747,13 @@ void ac_apply_fmask_to_sample(struct ac_llvm_context *ac, LLVMValueRef fmask,
final_sample = LLVMBuildMul(ac->builder, addr[sample_chan],
LLVMConstInt(ac->i32, 4, 0), "");
final_sample = LLVMBuildLShr(ac->builder, fmask_value, final_sample, "");
/* Mask the sample index by 0x7, because 0x8 means an unknown value
* with EQAA, so those will map to 0. */
final_sample = LLVMBuildAnd(ac->builder, final_sample,
LLVMConstInt(ac->i32, 0xF, 0), "");
LLVMConstInt(ac->i32, 0x7, 0), "");
/* Don't rewrite the sample index if WORD1.DATA_FORMAT of the FMASK
* resource descriptor is 0 (invalid),
* resource descriptor is 0 (invalid).
*/
LLVMValueRef tmp;
tmp = LLVMBuildBitCast(ac->builder, fmask, ac->v8i32, "");