Mesa (master): ac: fix ac_build_bitfield_reverse() for 16-bit integer type

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Module: Mesa
Branch: master
Commit: b16dffff235c474095a6ef88ae35b50a120f34d8
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=b16dffff235c474095a6ef88ae35b50a120f34d8

Author: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Date:   Tue Mar 26 11:34:44 2019 +0100

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

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

---

 src/amd/common/ac_llvm_build.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/amd/common/ac_llvm_build.c b/src/amd/common/ac_llvm_build.c
index aff8f67827d..ae1502abef6 100644
--- a/src/amd/common/ac_llvm_build.c
+++ b/src/amd/common/ac_llvm_build.c
@@ -2576,6 +2576,8 @@ LLVMValueRef ac_build_bitfield_reverse(struct ac_llvm_context *ctx,
 		result = ac_build_intrinsic(ctx, "llvm.bitreverse.i16", ctx->i16,
 					    (LLVMValueRef []) { src0 }, 1,
 					    AC_FUNC_ATTR_READNONE);
+
+		result = LLVMBuildZExt(ctx->builder, result, ctx->i32, "");
 		break;
 	default:
 		unreachable(!"invalid bitsize");