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ac: add ac_build_buffer_load_common() helper 

For both versions of llvm.amdgcn.buffer.load.{format}.*.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This commit is contained in:
Samuel Pitoiset 2018-01-10 20:12:09 +01:00
parent 6d07e443ba
commit d7c93b558a
1 changed files with 40 additions and 21 deletions
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61
src/amd/common/ac_llvm_build.c
View File

@ -923,6 +923,43 @@ ac_build_buffer_store_dword(struct ac_llvm_context *ctx,
AC_FUNC_ATTR_LEGACY);
}
static LLVMValueRef
ac_build_buffer_load_common(struct ac_llvm_context *ctx,
LLVMValueRef rsrc,
LLVMValueRef vindex,
LLVMValueRef voffset,
unsigned num_channels,
bool glc,
bool slc,
bool can_speculate,
bool use_format)
{
LLVMValueRef args[] = {
LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, ""),
vindex ? vindex : LLVMConstInt(ctx->i32, 0, 0),
voffset,
LLVMConstInt(ctx->i1, glc, 0),
LLVMConstInt(ctx->i1, slc, 0)
};
unsigned func = CLAMP(num_channels, 1, 3) - 1;
LLVMTypeRef types[] = {ctx->f32, ctx->v2f32, ctx->v4f32};
const char *type_names[] = {"f32", "v2f32", "v4f32"};
char name[256];
if (use_format) {
snprintf(name, sizeof(name), "llvm.amdgcn.buffer.load.format.%s",
type_names[func]);
} else {
snprintf(name, sizeof(name), "llvm.amdgcn.buffer.load.%s",
type_names[func]);
}
return ac_build_intrinsic(ctx, name, types[func], args,
ARRAY_SIZE(args),
ac_get_load_intr_attribs(can_speculate));
}
LLVMValueRef
ac_build_buffer_load(struct ac_llvm_context *ctx,
LLVMValueRef rsrc,
@ -967,27 +1004,9 @@ ac_build_buffer_load(struct ac_llvm_context *ctx,
return ac_build_gather_values(ctx, result, num_channels);
}
unsigned func = CLAMP(num_channels, 1, 3) - 1;
LLVMValueRef args[] = {
LLVMBuildBitCast(ctx->builder, rsrc, ctx->v4i32, ""),
vindex ? vindex : LLVMConstInt(ctx->i32, 0, 0),
offset,
LLVMConstInt(ctx->i1, glc, 0),
LLVMConstInt(ctx->i1, slc, 0)
};
LLVMTypeRef types[] = {ctx->f32, LLVMVectorType(ctx->f32, 2),
ctx->v4f32};
const char *type_names[] = {"f32", "v2f32", "v4f32"};
char name[256];
snprintf(name, sizeof(name), "llvm.amdgcn.buffer.load.%s",
type_names[func]);
return ac_build_intrinsic(ctx, name, types[func], args,
ARRAY_SIZE(args),
ac_get_load_intr_attribs(can_speculate));
return ac_build_buffer_load_common(ctx, rsrc, vindex, offset,
num_channels, glc, slc,
can_speculate, false);
}
LLVMValueRef ac_build_buffer_load_format(struct ac_llvm_context *ctx,