OpenHarmony/third_party_mesa3d
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ac/llvm: add helper ac_build_is_inf_or_nan

Browse Source 
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13380>
This commit is contained in:
Marek Olšák
2021-10-15 05:23:02 -04:00
committed by Marge Bot
parent 5e8f76b713
commit efaab0ec50
3 changed files with 12 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/amd/llvm/ac_llvm_build.c
View File

@@ -4776,3 +4776,13 @@ void ac_build_triangle_strip_indices_to_triangle(struct ac_llvm_context *ctx, LL
LLVMBuildSelect(builder, is_odd, index[1], index[2], ""), index[2], "");
memcpy(index, out, sizeof(out));
}
LLVMValueRef ac_build_is_inf_or_nan(struct ac_llvm_context *ctx, LLVMValueRef a)
{
LLVMValueRef args[2] = {
a,
LLVMConstInt(ctx->i32, S_NAN | Q_NAN | N_INFINITY | P_INFINITY, 0),
};
return ac_build_intrinsic(ctx, "llvm.amdgcn.class.f32", ctx->i1, args, 2,
AC_FUNC_ATTR_READNONE);
}

1
src/amd/llvm/ac_llvm_build.h
View File

@@ -615,6 +615,7 @@ void ac_build_s_endpgm(struct ac_llvm_context *ctx);
void ac_build_triangle_strip_indices_to_triangle(struct ac_llvm_context *ctx, LLVMValueRef is_odd,
LLVMValueRef flatshade_first,
LLVMValueRef index[3]);
LLVMValueRef ac_build_is_inf_or_nan(struct ac_llvm_context *ctx, LLVMValueRef a);
#ifdef __cplusplus
}

6
src/amd/llvm/ac_nir_to_llvm.c
View File

@@ -3348,11 +3348,7 @@ static LLVMValueRef load_interpolated_input(struct ac_nir_context *ctx, LLVMValu
/* Workaround for issue 2647: kill threads with infinite interpolation coeffs */
if (ctx->verified_interp && !_mesa_hash_table_search(ctx->verified_interp, interp_param)) {
LLVMValueRef args[2];
args[0] = i;
args[1] = LLVMConstInt(ctx->ac.i32, S_NAN | Q_NAN | N_INFINITY | P_INFINITY, false);
LLVMValueRef cond = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.class.f32", ctx->ac.i1, args, 2,
AC_FUNC_ATTR_READNONE);
LLVMValueRef cond = ac_build_is_inf_or_nan(&ctx->ac, i);
ac_build_kill_if_false(&ctx->ac, LLVMBuildNot(ctx->ac.builder, cond, ""));
_mesa_hash_table_insert(ctx->verified_interp, interp_param, interp_param);
}