[Mesa-dev] [PATCH 6/9] ac: add 16-bit support to ac_find_lsb()

[Samuel Pitoiset]

Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
---
 src/amd/common/ac_llvm_build.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/amd/common/ac_llvm_build.c b/src/amd/common/ac_llvm_build.c
index 905146c9f2..6955df48e0 100644
--- a/src/amd/common/ac_llvm_build.c
+++ b/src/amd/common/ac_llvm_build.c
@@ -2499,14 +2499,25 @@ LLVMValueRef ac_find_lsb(struct ac_llvm_context *ctx,
 	const char *intrin_name;
 	LLVMTypeRef type;
 	LLVMValueRef zero;
-	if (src0_bitsize == 64) {
+
+	switch (src0_bitsize) {
+	case 64:
 		intrin_name = "llvm.cttz.i64";
 		type = ctx->i64;
 		zero = ctx->i64_0;
-	} else {
+		break;
+	case 32:
 		intrin_name = "llvm.cttz.i32";
 		type = ctx->i32;
 		zero = ctx->i32_0;
+		break;
+	case 16:
+		intrin_name = "llvm.cttz.i16";
+		type = ctx->i16;
+		zero = ctx->i16_0;
+		break;
+	default:
+		unreachable(!"invalid bitsize");
 	}
 
 	LLVMValueRef params[2] = {
-- 
2.19.0