emit_data->args[0] = conds[0];
}
+void si_llvm_emit_kill(struct ac_shader_abi *abi, LLVMValueRef visible)
+{
+ struct si_shader_context *ctx = si_shader_context_from_abi(abi);
+ LLVMBuilderRef builder = ctx->ac.builder;
+
+ if (ctx->shader->selector->force_correct_derivs_after_kill) {
+ /* LLVM 6.0 can kill immediately while maintaining WQM. */
+ if (HAVE_LLVM >= 0x0600) {
+ ac_build_kill_if_false(&ctx->ac,
+ ac_build_wqm_vote(&ctx->ac, visible));
+ }
+
+ LLVMValueRef mask = LLVMBuildLoad(builder, ctx->postponed_kill, "");
+ mask = LLVMBuildAnd(builder, mask, visible, "");
+ LLVMBuildStore(builder, mask, ctx->postponed_kill);
+ return;
+ }
+
+ ac_build_kill_if_false(&ctx->ac, visible);
+}
+
static void kil_emit(const struct lp_build_tgsi_action *action,
struct lp_build_tgsi_context *bld_base,
struct lp_build_emit_data *emit_data)
{
struct si_shader_context *ctx = si_shader_context(bld_base);
- LLVMBuilderRef builder = ctx->ac.builder;
LLVMValueRef visible;
if (emit_data->inst->Instruction.Opcode == TGSI_OPCODE_KILL_IF) {
visible = LLVMConstInt(ctx->i1, false, 0);
}
- if (ctx->postponed_kill) {
- LLVMValueRef mask = LLVMBuildLoad(builder, ctx->postponed_kill, "");
- mask = LLVMBuildAnd(builder, mask, visible, "");
- LLVMBuildStore(builder, mask, ctx->postponed_kill);
- return;
- }
-
- ac_build_kill_if_false(&ctx->ac, visible);
+ si_llvm_emit_kill(&ctx->abi, visible);
}
static void emit_icmp(const struct lp_build_tgsi_action *action,
struct lp_build_emit_data *emit_data)
{
struct si_shader_context *ctx = si_shader_context(bld_base);
- LLVMBuilderRef builder = ctx->ac.builder;
- LLVMValueRef cmp, val;
+ LLVMValueRef val;
if (emit_data->inst->Instruction.Opcode == TGSI_OPCODE_I64SSG) {
- cmp = LLVMBuildICmp(builder, LLVMIntSGT, emit_data->args[0], bld_base->int64_bld.zero, "");
- val = LLVMBuildSelect(builder, cmp, bld_base->int64_bld.one, emit_data->args[0], "");
- cmp = LLVMBuildICmp(builder, LLVMIntSGE, val, bld_base->int64_bld.zero, "");
- val = LLVMBuildSelect(builder, cmp, val, LLVMConstInt(ctx->i64, -1, true), "");
+ val = ac_build_isign(&ctx->ac, emit_data->args[0], 64);
} else if (emit_data->inst->Instruction.Opcode == TGSI_OPCODE_ISSG) {
- cmp = LLVMBuildICmp(builder, LLVMIntSGT, emit_data->args[0], ctx->i32_0, "");
- val = LLVMBuildSelect(builder, cmp, ctx->i32_1, emit_data->args[0], "");
- cmp = LLVMBuildICmp(builder, LLVMIntSGE, val, ctx->i32_0, "");
- val = LLVMBuildSelect(builder, cmp, val, LLVMConstInt(ctx->i32, -1, true), "");
+ val = ac_build_isign(&ctx->ac, emit_data->args[0], 32);
} else if (emit_data->inst->Instruction.Opcode == TGSI_OPCODE_DSSG) {
- cmp = LLVMBuildFCmp(builder, LLVMRealOGT, emit_data->args[0], bld_base->dbl_bld.zero, "");
- val = LLVMBuildSelect(builder, cmp, bld_base->dbl_bld.one, emit_data->args[0], "");
- cmp = LLVMBuildFCmp(builder, LLVMRealOGE, val, bld_base->dbl_bld.zero, "");
- val = LLVMBuildSelect(builder, cmp, val, LLVMConstReal(bld_base->dbl_bld.elem_type, -1), "");
- } else { // float SSG
- cmp = LLVMBuildFCmp(builder, LLVMRealOGT, emit_data->args[0], ctx->ac.f32_0, "");
- val = LLVMBuildSelect(builder, cmp, ctx->ac.f32_1, emit_data->args[0], "");
- cmp = LLVMBuildFCmp(builder, LLVMRealOGE, val, ctx->ac.f32_0, "");
- val = LLVMBuildSelect(builder, cmp, val, LLVMConstReal(ctx->f32, -1), "");
+ val = ac_build_fsign(&ctx->ac, emit_data->args[0], 64);
+ } else {
+ val = ac_build_fsign(&ctx->ac, emit_data->args[0], 32);
}
emit_data->output[emit_data->chan] = val;
struct lp_build_emit_data *emit_data)
{
struct si_shader_context *ctx = si_shader_context(bld_base);
- char *intr;
+ unsigned bitsize;
if (emit_data->info->opcode == TGSI_OPCODE_FRC)
- intr = "llvm.floor.f32";
+ bitsize = 32;
else if (emit_data->info->opcode == TGSI_OPCODE_DFRAC)
- intr = "llvm.floor.f64";
+ bitsize = 64;
else {
assert(0);
return;
}
- LLVMValueRef floor = lp_build_intrinsic(ctx->ac.builder, intr, emit_data->dst_type,
- &emit_data->args[0], 1,
- LP_FUNC_ATTR_READNONE);
- emit_data->output[emit_data->chan] = LLVMBuildFSub(ctx->ac.builder,
- emit_data->args[0], floor, "");
+ emit_data->output[emit_data->chan] =
+ ac_build_fract(&ctx->ac, emit_data->args[0], bitsize);
}
static void emit_f2i(const struct lp_build_tgsi_action *action,
struct lp_build_emit_data *emit_data)
{
struct si_shader_context *ctx = si_shader_context(bld_base);
- LLVMValueRef args[2] = {
- emit_data->args[0],
-
- /* The value of 1 means that ffs(x=0) = undef, so LLVM won't
- * add special code to check for x=0. The reason is that
- * the LLVM behavior for x=0 is different from what we
- * need here. However, LLVM also assumes that ffs(x) is
- * in [0, 31], but GLSL expects that ffs(0) = -1, so
- * a conditional assignment to handle 0 is still required.
- */
- LLVMConstInt(ctx->i1, 1, 0)
- };
-
- LLVMValueRef lsb =
- lp_build_intrinsic(ctx->ac.builder, "llvm.cttz.i32",
- emit_data->dst_type, args, ARRAY_SIZE(args),
- LP_FUNC_ATTR_READNONE);
- /* TODO: We need an intrinsic to skip this conditional. */
- /* Check for zero: */
- emit_data->output[emit_data->chan] =
- LLVMBuildSelect(ctx->ac.builder,
- LLVMBuildICmp(ctx->ac.builder, LLVMIntEQ, args[0],
- ctx->i32_0, ""),
- LLVMConstInt(ctx->i32, -1, 0), lsb, "");
+ emit_data->output[emit_data->chan] = ac_find_lsb(&ctx->ac, emit_data->dst_type, emit_data->args[0]);
}
/* Find the last bit set. */
struct si_shader_context *ctx = si_shader_context(bld_base);
emit_data->output[emit_data->chan] =
- LLVMBuildFDiv(ctx->ac.builder,
- emit_data->args[0], emit_data->args[1], "");
-
- /* Use v_rcp_f32 instead of precise division. */
- if (!LLVMIsConstant(emit_data->output[emit_data->chan]))
- LLVMSetMetadata(emit_data->output[emit_data->chan],
- ctx->fpmath_md_kind, ctx->fpmath_md_2p5_ulp);
+ ac_build_fdiv(&ctx->ac, emit_data->args[0], emit_data->args[1]);
}
/* 1/sqrt is translated to rsq for f32 if fp32 denormals are not enabled in
projects / mesa.git / blobdiff