[Mesa-dev] [PATCH 3/3] radeonsi: set unsafe fpmath on FP instructions when allowed by R600_DEBUG

[Nicolai Hähnle]

For the series:

Reviewed-by: Nicolai Hähnle <nicolai.haehnle at amd.com>

On 13.11.2016 17:13, Marek Olšák wrote:
> From: Marek Olšák <marek.olsak at amd.com>
>
> ---
>  src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c b/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c
> index 624a167..2f38949 100644
> --- a/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c
> +++ b/src/gallium/drivers/radeonsi/si_shader_tgsi_setup.c
> @@ -15,20 +15,21 @@
>   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
>   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
>   * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
>   * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
>   * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
>   * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
>   * USE OR OTHER DEALINGS IN THE SOFTWARE.
>   */
>
>  #include "si_shader_internal.h"
> +#include "si_pipe.h"
>  #include "radeon/radeon_elf_util.h"
>
>  #include "gallivm/lp_bld_const.h"
>  #include "gallivm/lp_bld_gather.h"
>  #include "gallivm/lp_bld_flow.h"
>  #include "gallivm/lp_bld_init.h"
>  #include "gallivm/lp_bld_intr.h"
>  #include "gallivm/lp_bld_misc.h"
>  #include "gallivm/lp_bld_swizzle.h"
>  #include "tgsi/tgsi_info.h"
> @@ -1239,21 +1240,24 @@ void si_llvm_context_init(struct si_shader_context *ctx,
>  	memset(ctx, 0, sizeof(*ctx));
>  	ctx->shader = shader;
>  	ctx->screen = sscreen;
>  	ctx->tm = tm;
>  	ctx->type = info ? info->processor : -1;
>
>  	ctx->gallivm.context = LLVMContextCreate();
>  	ctx->gallivm.module = LLVMModuleCreateWithNameInContext("tgsi",
>  						ctx->gallivm.context);
>  	LLVMSetTarget(ctx->gallivm.module, "amdgcn--");
> -	ctx->gallivm.builder = LLVMCreateBuilderInContext(ctx->gallivm.context);
> +
> +	bool unsafe_fpmath = (sscreen->b.debug_flags & DBG_UNSAFE_MATH) != 0;
> +	ctx->gallivm.builder = lp_create_builder(ctx->gallivm.context,
> +						 unsafe_fpmath);
>
>  	struct lp_build_tgsi_context *bld_base = &ctx->soa.bld_base;
>
>  	bld_base->info = info;
>
>  	if (info && info->array_max[TGSI_FILE_TEMPORARY] > 0) {
>  		int size = info->array_max[TGSI_FILE_TEMPORARY];
>
>  		ctx->temp_arrays = CALLOC(size, sizeof(ctx->temp_arrays[0]));
>  		ctx->temp_array_allocas = CALLOC(size, sizeof(ctx->temp_array_allocas[0]));
>