gallivm/nir: lower frexp/ldexp

[mesa.git] / src / gallium / auxiliary / gallivm / lp_bld_nir.c

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_nir.c b/src/gallium/auxiliary/gallivm/lp_bld_nir.c
index f407f6204c045960ad62a9f03a9c9a748dc25422..d4d35a1159413640c4cc713da2722bcdec7febfc 100644 (file)
--- a/src/gallium/auxiliary/gallivm/lp_bld_nir.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_nir.c
@@ -441,6 +441,18 @@ do_int_mod(struct lp_build_nir_context *bld_base,
    return LLVMBuildOr(builder, div_mask, result, "");
 }
 
+static LLVMValueRef
+do_quantize_to_f16(struct lp_build_nir_context *bld_base,
+                   LLVMValueRef src)
+{
+   struct gallivm_state *gallivm = bld_base->base.gallivm;
+   LLVMBuilderRef builder = gallivm->builder;
+   LLVMValueRef result;
+   result = LLVMBuildFPTrunc(builder, src, LLVMVectorType(LLVMHalfTypeInContext(gallivm->context), bld_base->base.type.length), "");
+   result = LLVMBuildFPExt(builder, result, bld_base->base.vec_type, "");
+   return result;
+}
+
 static LLVMValueRef do_alu_action(struct lp_build_nir_context *bld_base,
                                   nir_op op, unsigned src_bit_size[NIR_MAX_VEC_COMPONENTS], LLVMValueRef src[NIR_MAX_VEC_COMPONENTS])
 {
@@ -585,6 +597,9 @@ static LLVMValueRef do_alu_action(struct lp_build_nir_context *bld_base,
    case nir_op_fpow:
       result = lp_build_pow(&bld_base->base, src[0], src[1]);
       break;
+   case nir_op_fquantize2f16:
+      result = do_quantize_to_f16(bld_base, src[0]);
+      break;
    case nir_op_frcp:
       result = lp_build_rcp(get_flt_bld(bld_base, src_bit_size[0]), src[0]);
       break;
@@ -907,7 +922,7 @@ get_deref_offset(struct lp_build_nir_context *bld_base, nir_deref_instr *instr,
    uint32_t const_offset = 0;
    LLVMValueRef offset = NULL;
 
-   if (var->data.compact) {
+   if (var->data.compact && nir_src_is_const(instr->arr.index)) {
       assert(instr->deref_type == nir_deref_type_array);
       const_offset = nir_src_as_uint(instr->arr.index);
       goto out;
@@ -2016,6 +2031,13 @@ bool lp_build_nir_llvm(
 void lp_build_opt_nir(struct nir_shader *nir)
 {
    bool progress;
+
+   static const struct nir_lower_tex_options lower_tex_options = {
+      .lower_tg4_offsets = true,
+   };
+   NIR_PASS_V(nir, nir_lower_tex, &lower_tex_options);
+   NIR_PASS_V(nir, nir_lower_frexp);
+
    do {
       progress = false;
       NIR_PASS_V(nir, nir_opt_constant_folding);