From: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Date: Tue, 26 Mar 2019 10:34:45 +0000 (+0100)
Subject: ac: fix ac_find_lsb() for 16-bit integer type
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7a088d1ac8f10fa42c81e9ce7d5eaac1cc9e8faa;p=mesa.git

ac: fix ac_find_lsb() for 16-bit integer type

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
---

diff --git a/src/amd/common/ac_llvm_build.c b/src/amd/common/ac_llvm_build.c
index ae1502abef6..20c722e332e 100644
--- a/src/amd/common/ac_llvm_build.c
+++ b/src/amd/common/ac_llvm_build.c
@@ -2944,6 +2944,8 @@ LLVMValueRef ac_find_lsb(struct ac_llvm_context *ctx,
 
 	if (src0_bitsize == 64) {
 		lsb = LLVMBuildTrunc(ctx->builder, lsb, ctx->i32, "");
+	} else if (src0_bitsize == 16) {
+		lsb = LLVMBuildSExt(ctx->builder, lsb, ctx->i32, "");
 	}
 
 	/* TODO: We need an intrinsic to skip this conditional. */