[Mesa-dev] [PATCH v2 28/41] ac/nir: implement 8 and 16 bit ac_build_imsb

[Rhys Perry]

v2: fix C++ style comment

Signed-off-by: Rhys Perry <pendingchaos02 at gmail.com>
---
 src/amd/common/ac_llvm_build.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/amd/common/ac_llvm_build.c b/src/amd/common/ac_llvm_build.c
index ec87a7b9343..c986f800fa4 100644
--- a/src/amd/common/ac_llvm_build.c
+++ b/src/amd/common/ac_llvm_build.c
@@ -1531,6 +1531,10 @@ ac_build_imsb(struct ac_llvm_context *ctx,
 	      LLVMValueRef arg,
 	      LLVMTypeRef dst_type)
 {
+	/* TODO: support 64-bit integers */
+	if (LLVMTypeOf(arg) != ctx->i32)
+		arg = LLVMBuildSExt(ctx->builder, arg, ctx->i32, "");
+
 	LLVMValueRef msb = ac_build_intrinsic(ctx, "llvm.amdgcn.sffbh.i32",
 					      dst_type, &arg, 1,
 					      AC_FUNC_ATTR_READNONE);
-- 
2.20.1