diff options
| -rw-r--r-- | src/amd/common/ac_llvm_build.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/amd/common/ac_llvm_build.c b/src/amd/common/ac_llvm_build.c index 133003b779a..93ae273f900 100644 --- a/src/amd/common/ac_llvm_build.c +++ b/src/amd/common/ac_llvm_build.c @@ -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, ""); |