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ac/nir: implement nir_intrinsic_{load,store}_global

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Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5316>
This commit is contained in:
Samuel Pitoiset
2020-06-03 18:25:46 +02:00
committed by Marge Bot
parent f01656c495
commit 82cf607557
1 changed files with 55 additions and 0 deletions
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55
src/amd/llvm/ac_nir_to_llvm.c
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@@ -1958,6 +1958,55 @@ static LLVMValueRef enter_waterfall_ubo(struct ac_nir_context *ctx, struct water
nir_intrinsic_access(instr) & ACCESS_NON_UNIFORM);
}
static LLVMValueRef visit_load_global(struct ac_nir_context *ctx,
nir_intrinsic_instr *instr)
{
LLVMValueRef addr = get_src(ctx, instr->src[0]);
LLVMTypeRef result_type = get_def_type(ctx, &instr->dest.ssa);
LLVMValueRef val;
LLVMTypeRef ptr_type = LLVMPointerType(result_type, AC_ADDR_SPACE_GLOBAL);
addr = LLVMBuildIntToPtr(ctx->ac.builder, addr, ptr_type, "");
val = LLVMBuildLoad(ctx->ac.builder, addr, "");
if (nir_intrinsic_access(instr) & (ACCESS_COHERENT | ACCESS_VOLATILE)) {
LLVMSetOrdering(val, LLVMAtomicOrderingMonotonic);
LLVMSetAlignment(val, ac_get_type_size(result_type));
}
return val;
}
static void visit_store_global(struct ac_nir_context *ctx,
nir_intrinsic_instr *instr)
{
if (ctx->ac.postponed_kill) {
LLVMValueRef cond = LLVMBuildLoad(ctx->ac.builder, ctx->ac.postponed_kill, "");
ac_build_ifcc(&ctx->ac, cond, 7002);
}
LLVMValueRef data = get_src(ctx, instr->src[0]);
LLVMValueRef addr = get_src(ctx, instr->src[1]);
LLVMTypeRef type = LLVMTypeOf(data);
LLVMValueRef val;
LLVMTypeRef ptr_type = LLVMPointerType(type, AC_ADDR_SPACE_GLOBAL);
addr = LLVMBuildIntToPtr(ctx->ac.builder, addr, ptr_type, "");
val = LLVMBuildStore(ctx->ac.builder, data, addr);
if (nir_intrinsic_access(instr) & (ACCESS_COHERENT | ACCESS_VOLATILE)) {
LLVMSetOrdering(val, LLVMAtomicOrderingMonotonic);
LLVMSetAlignment(val, ac_get_type_size(type));
}
if (ctx->ac.postponed_kill)
ac_build_endif(&ctx->ac, 7002);
}
static LLVMValueRef visit_load_ubo_buffer(struct ac_nir_context *ctx, nir_intrinsic_instr *instr)
{
struct waterfall_context wctx;
@@ -3701,6 +3750,12 @@ static void visit_intrinsic(struct ac_nir_context *ctx, nir_intrinsic_instr *ins
case nir_intrinsic_load_ssbo:
result = visit_load_buffer(ctx, instr);
break;
case nir_intrinsic_load_global:
result = visit_load_global(ctx, instr);
break;
case nir_intrinsic_store_global:
visit_store_global(ctx, instr);
break;
case nir_intrinsic_ssbo_atomic_add:
case nir_intrinsic_ssbo_atomic_imin:
case nir_intrinsic_ssbo_atomic_umin: