diff options
| author | Dave Airlie <[email protected]> | 2017-02-16 03:54:19 +0000 |
|---|---|---|
| committer | Dave Airlie <[email protected]> | 2017-02-16 22:57:16 +0000 |
| commit | b0232d98e9539087522040fd1882304098e0e827 (patch) | |
| tree | e7e378d8026361962ca93ba6f000f0449a6597af /src/gallium | |
| parent | ebed22ec675dd8feb96edc900cb720ef74845fff (diff) | |
radeonsi: use shared emit_umsb helper.
Reviewed-by: Edward O'Callaghan <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_shader_tgsi_alu.c | 24 |
1 files changed, 2 insertions, 22 deletions
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. */ |