Module: Mesa Branch: master Commit: 645b471d619b654d3bacfa8598f759833e08db4e URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=645b471d619b654d3bacfa8598f759833e08db4e
Author: Marek Olšák <[email protected]> Date: Thu Nov 20 22:16:09 2014 +0100 radeonsi: use minnum and maxnum LLVM intrinsics for MIN and MAX opcodes So far it has been compiled into pretty ugly code (8 instructions or so for either opcode). Reviewed-by: Tom Stellard <[email protected]> --- src/gallium/drivers/radeonsi/si_shader.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c index 40a2f90..037811e 100644 --- a/src/gallium/drivers/radeonsi/si_shader.c +++ b/src/gallium/drivers/radeonsi/si_shader.c @@ -2737,6 +2737,13 @@ int si_shader_create(struct si_screen *sscreen, struct si_shader *shader) bld_base->op_actions[TGSI_OPCODE_EMIT].emit = si_llvm_emit_vertex; bld_base->op_actions[TGSI_OPCODE_ENDPRIM].emit = si_llvm_emit_primitive; + if (HAVE_LLVM >= 0x0306) { + bld_base->op_actions[TGSI_OPCODE_MAX].emit = build_tgsi_intrinsic_nomem; + bld_base->op_actions[TGSI_OPCODE_MAX].intr_name = "llvm.maxnum.f32"; + bld_base->op_actions[TGSI_OPCODE_MIN].emit = build_tgsi_intrinsic_nomem; + bld_base->op_actions[TGSI_OPCODE_MIN].intr_name = "llvm.minnum.f32"; + } + si_shader_ctx.radeon_bld.load_system_value = declare_system_value; si_shader_ctx.tokens = sel->tokens; tgsi_parse_init(&si_shader_ctx.parse, si_shader_ctx.tokens); _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
