diff options
| author | Vincent Lejeune <vljn@ovi.com> | 2012-11-28 20:14:05 +0100 |
|---|---|---|
| committer | Vincent Lejeune <vljn@ovi.com> | 2012-11-28 20:18:28 +0100 |
| commit | e8731afb3c41f493808d05849920bd60f5bc4089 (patch) | |
| tree | d268d72be15d82551c55cfb2d8f50722fb9587d5 | |
| parent | 23adec6ffabbeb28d71642ff0fc707130bacadbd (diff) | |
r600g: use fcmp and select instructions for TGSI_OPCODE_MAX/MINllvm-simplification
| -rw-r--r-- | src/gallium/drivers/r600/r600_llvm.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/gallium/drivers/r600/r600_llvm.c b/src/gallium/drivers/r600/r600_llvm.c index 2056b91c98..804a1a9f81 100644 --- a/src/gallium/drivers/r600/r600_llvm.c +++ b/src/gallium/drivers/r600/r600_llvm.c @@ -428,6 +428,28 @@ struct lp_build_emit_data * emit_data) lp_build_const_float(bld_base->base.gallivm, 1.0f), emit_data->args[0], ""); } +static void llvm_fmax( +const struct lp_build_tgsi_action * action, +struct lp_build_tgsi_context * bld_base, +struct lp_build_emit_data * emit_data) +{ + LLVMBuilderRef builder = bld_base->base.gallivm->builder; + emit_data->output[emit_data->chan] = LLVMBuildSelect(builder, + LLVMBuildFCmp(builder, LLVMRealUGE, emit_data->args[0], emit_data->args[1], ""), + emit_data->args[0], emit_data->args[1], ""); +} + +static void llvm_fmin( +const struct lp_build_tgsi_action * action, +struct lp_build_tgsi_context * bld_base, +struct lp_build_emit_data * emit_data) +{ + LLVMBuilderRef builder = bld_base->base.gallivm->builder; + emit_data->output[emit_data->chan] = LLVMBuildSelect(builder, + LLVMBuildFCmp(builder, LLVMRealUGE, emit_data->args[0], emit_data->args[1], ""), + emit_data->args[1], emit_data->args[0], ""); +} + static struct lp_build_tgsi_action dot_action = { .fetch_args = dp_fetch_args, .emit = build_tgsi_intrinsic_nomem, @@ -473,6 +495,8 @@ LLVMModuleRef r600_tgsi_llvm( bld_base->op_actions[TGSI_OPCODE_MAD].emit = llvm_fmad; bld_base->op_actions[TGSI_OPCODE_DIV].emit = llvm_fdiv; bld_base->op_actions[TGSI_OPCODE_RCP].emit = llvm_frcp; + bld_base->op_actions[TGSI_OPCODE_MAX].emit = llvm_fmax; + bld_base->op_actions[TGSI_OPCODE_MIN].emit = llvm_fmin; lp_build_tgsi_llvm(bld_base, tokens); |