From b0232d98e9539087522040fd1882304098e0e827 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 16 Feb 2017 03:54:19 +0000 Subject: radeonsi: use shared emit_umsb helper. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reviewed-by: Edward O'Callaghan Reviewed-by: Marek Olšák Signed-off-by: Dave Airlie --- src/gallium/drivers/radeonsi/si_shader_tgsi_alu.c | 24 ++--------------------- 1 file changed, 2 insertions(+), 22 deletions(-) (limited to 'src/gallium/drivers/radeonsi') diff --git a/src/gallium/drivers/radeonsi/si_shader_tgsi_alu.c b/src/gallium/drivers/radeonsi/si_shader_tgsi_alu.c index 879deb136e3..e03d0538dfa 100644 --- a/src/gallium/drivers/radeonsi/si_shader_tgsi_alu.c +++ b/src/gallium/drivers/radeonsi/si_shader_tgsi_alu.c @@ -555,30 +555,10 @@ static void emit_umsb(const struct lp_build_tgsi_action *action, struct lp_build_tgsi_context *bld_base, struct lp_build_emit_data *emit_data) { - struct gallivm_state *gallivm = bld_base->base.gallivm; - LLVMBuilderRef builder = gallivm->builder; - LLVMValueRef args[2] = { - emit_data->args[0], - /* Don't generate code for handling zero: */ - LLVMConstInt(LLVMInt1TypeInContext(gallivm->context), 1, 0) - }; - - LLVMValueRef msb = - lp_build_intrinsic(builder, "llvm.ctlz.i32", - emit_data->dst_type, args, ARRAY_SIZE(args), - LP_FUNC_ATTR_READNONE); - - /* The HW returns the last bit index from MSB, but TGSI wants - * the index from LSB. Invert it by doing "31 - msb". */ - msb = LLVMBuildSub(builder, lp_build_const_int32(gallivm, 31), - msb, ""); + struct si_shader_context *ctx = si_shader_context(bld_base); - /* Check for zero: */ emit_data->output[emit_data->chan] = - LLVMBuildSelect(builder, - LLVMBuildICmp(builder, LLVMIntEQ, args[0], - bld_base->uint_bld.zero, ""), - lp_build_const_int32(gallivm, -1), msb, ""); + ac_emit_umsb(&ctx->ac, emit_data->args[0], emit_data->dst_type); } /* Find the last bit opposite of the sign bit. */ -- cgit v1.2.3