From 4a80272baeaa27681904fe76db447b7a32e8f854 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= <marek.olsak@amd.com>
Date: Tue, 18 Mar 2025 16:52:02 -0400
Subject: [PATCH] ac/llvm: fix readlane with vectors

It crashes in LLVM when the type is not scalar integer.

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35950>
---
 src/amd/llvm/ac_llvm_build.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/amd/llvm/ac_llvm_build.c b/src/amd/llvm/ac_llvm_build.c
index a9ea8d85d00..4ccf1d88200 100644
--- a/src/amd/llvm/ac_llvm_build.c
+++ b/src/amd/llvm/ac_llvm_build.c
@@ -2569,7 +2569,7 @@ static LLVMValueRef ac_build_readlane_common(struct ac_llvm_context *ctx, LLVMVa
 {
    LLVMTypeRef src_type = LLVMTypeOf(src);
    src = ac_to_integer(ctx, src);
-   unsigned bits = LLVMGetIntTypeWidth(LLVMTypeOf(src));
+   unsigned bits = ac_get_type_size(LLVMTypeOf(src)) * 8;
    LLVMValueRef ret;
 
    if (bits > 32) {