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radeonsi: do 64-bit LDS loads recursively

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Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This commit is contained in:
Marek Olšák 2017-11-09 23:25:34 +01:00
parent b6b4b2c6d8
commit 39b098dafb
1 changed files with 9 additions and 7 deletions
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16
src/gallium/drivers/radeonsi/si_shader.c
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@ -1090,17 +1090,19 @@ static LLVMValueRef lds_load(struct lp_build_tgsi_context *bld_base,
TGSI_NUM_CHANNELS);
}
/* Split 64-bit loads. */
if (tgsi_type_is_64bit(type)) {
LLVMValueRef lo, hi;
lo = lds_load(bld_base, TGSI_TYPE_UNSIGNED, swizzle, dw_addr);
hi = lds_load(bld_base, TGSI_TYPE_UNSIGNED, swizzle + 1, dw_addr);
return si_llvm_emit_fetch_64bit(bld_base, type, lo, hi);
}
dw_addr = lp_build_add(&bld_base->uint_bld, dw_addr,
LLVMConstInt(ctx->i32, swizzle, 0));
value = ac_lds_load(&ctx->ac, dw_addr);
if (tgsi_type_is_64bit(type)) {
LLVMValueRef value2;
dw_addr = lp_build_add(&bld_base->uint_bld, dw_addr,
ctx->i32_1);
value2 = ac_lds_load(&ctx->ac, dw_addr);
return si_llvm_emit_fetch_64bit(bld_base, type, value, value2);
}
return bitcast(bld_base, type, value);
}