Signed-off-by: Daniel Schürmann <daniel.schuerm...@campus.tu-berlin.de>
---
src/amd/common/ac_nir_to_llvm.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index babcb9de44..598e129aad 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -1381,6 +1381,26 @@ static LLVMValueRef visit_load_push_constant(struct
ac_nir_context *ctx,
get_src(ctx, instr->src[0]), "");
ptr = ac_build_gep0(&ctx->ac, ctx->abi->push_constants, addr);
+
+ if (instr->dest.ssa.bit_size == 16) {
+ unsigned load_dwords = instr->dest.ssa.num_components / 2 + 1;
+ LLVMTypeRef vec_type = LLVMVectorType(LLVMInt16Type(), 2 *
load_dwords);
+ ptr = ac_cast_ptr(&ctx->ac, ptr, vec_type);
+ LLVMValueRef res = LLVMBuildLoad(ctx->ac.builder, ptr, "");
+ res = LLVMBuildBitCast(ctx->ac.builder, res, vec_type, "");
+ LLVMValueRef cond = LLVMBuildLShr(ctx->ac.builder, addr,
ctx->ac.i32_1, "");
+ cond = LLVMBuildTrunc(ctx->ac.builder, cond, LLVMInt1Type(),
"");
+ LLVMValueRef mask[] = { LLVMConstInt(ctx->ac.i32, 0, false),
LLVMConstInt(ctx->ac.i32, 1, false),
+ LLVMConstInt(ctx->ac.i32, 2, false),
LLVMConstInt(ctx->ac.i32, 3, false),
+ LLVMConstInt(ctx->ac.i32, 4, false)};
+ LLVMValueRef swizzle_aligned = LLVMConstVector(&mask[0],
instr->dest.ssa.num_components);
+ LLVMValueRef swizzle_unaligned = LLVMConstVector(&mask[1],
instr->dest.ssa.num_components);
+ LLVMValueRef shuffle_aligned =
LLVMBuildShuffleVector(ctx->ac.builder, res, res, swizzle_aligned, "");
+ LLVMValueRef shuffle_unaligned =
LLVMBuildShuffleVector(ctx->ac.builder, res, res, swizzle_unaligned, "");
+ res = LLVMBuildSelect(ctx->ac.builder, cond, shuffle_unaligned,
shuffle_aligned, "");
+ return LLVMBuildBitCast(ctx->ac.builder, res, get_def_type(ctx,
&instr->dest.ssa), "");
+ }
+
ptr = ac_cast_ptr(&ctx->ac, ptr, get_def_type(ctx, &instr->dest.ssa));
return LLVMBuildLoad(ctx->ac.builder, ptr, "");
--
2.17.1
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