From 5a6c8ca3e8efca5b9ef6cf8adbcede12c9552618 Mon Sep 17 00:00:00 2001 From: Samuel Pitoiset Date: Fri, 14 Sep 2018 12:52:36 +0200 Subject: [PATCH] ac: add 16-bit support to ac_build_umsb() Signed-off-by: Samuel Pitoiset Reviewed-by: Bas Nieuwenhuizen --- src/amd/common/ac_llvm_build.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/src/amd/common/ac_llvm_build.c b/src/amd/common/ac_llvm_build.c index 71723d5..905146c 100644 --- a/src/amd/common/ac_llvm_build.c +++ b/src/amd/common/ac_llvm_build.c @@ -1393,17 +1393,31 @@ ac_build_umsb(struct ac_llvm_context *ctx, LLVMTypeRef type; LLVMValueRef highest_bit; LLVMValueRef zero; + unsigned bitsize; - if (ac_get_elem_bits(ctx, LLVMTypeOf(arg)) == 64) { + bitsize = ac_get_elem_bits(ctx, LLVMTypeOf(arg)); + switch (bitsize) { + case 64: intrin_name = "llvm.ctlz.i64"; type = ctx->i64; highest_bit = LLVMConstInt(ctx->i64, 63, false); zero = ctx->i64_0; - } else { + break; + case 32: intrin_name = "llvm.ctlz.i32"; type = ctx->i32; highest_bit = LLVMConstInt(ctx->i32, 31, false); zero = ctx->i32_0; + break; + case 16: + intrin_name = "llvm.ctlz.i16"; + type = ctx->i16; + highest_bit = LLVMConstInt(ctx->i16, 15, false); + zero = ctx->i16_0; + break; + default: + unreachable(!"invalid bitsize"); + break; } LLVMValueRef params[2] = { -- 2.7.4