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ac/nir: use ac_build_buffer_load() for SSBO load operations 

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Samuel Pitoiset 2019-03-12 10:20:11 +01:00
parent 29132af234
commit 6b573c00c9
1 changed files with 6 additions and 29 deletions
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35
src/amd/common/ac_nir_to_llvm.c
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@ -1706,7 +1706,6 @@ static LLVMValueRef visit_load_buffer(struct ac_nir_context *ctx,
int num_components = instr->num_components;
enum gl_access_qualifier access = nir_intrinsic_access(instr);
unsigned cache_policy = get_cache_policy(ctx, access, false, false);
LLVMValueRef glc = (cache_policy & ac_glc) ? ctx->ac.i1true : ctx->ac.i1false;
LLVMValueRef offset = get_src(ctx, instr->src[1]);
LLVMValueRef rsrc = ctx->abi->load_ssbo(ctx->abi,
@ -1736,34 +1735,12 @@ static LLVMValueRef visit_load_buffer(struct ac_nir_context *ctx,
immoffset,
cache_policy & ac_glc);
} else {
const char *load_name;
LLVMTypeRef data_type;
switch (load_bytes) {
case 16:
case 12:
load_name = "llvm.amdgcn.buffer.load.v4f32";
data_type = ctx->ac.v4f32;
break;
case 8:
case 6:
load_name = "llvm.amdgcn.buffer.load.v2f32";
data_type = ctx->ac.v2f32;
break;
case 4:
load_name = "llvm.amdgcn.buffer.load.f32";
data_type = ctx->ac.f32;
break;
default:
unreachable("Malformed load buffer.");
}
LLVMValueRef params[] = {
rsrc,
vindex,
LLVMBuildAdd(ctx->ac.builder, offset, immoffset, ""),
glc,
ctx->ac.i1false,
};
ret = ac_build_intrinsic(&ctx->ac, load_name, data_type, params, 5, 0);
int num_channels = util_next_power_of_two(load_bytes) / 4;
ret = ac_build_buffer_load(&ctx->ac, rsrc, num_channels,
vindex, offset, immoffset, 0,
cache_policy & ac_glc, 0,
false, false);
}
LLVMTypeRef byte_vec = LLVMVectorType(ctx->ac.i8, ac_get_type_size(LLVMTypeOf(ret)));