From 9ad9236c3bc2d9ea538bd1e5050141c85e0732ab Mon Sep 17 00:00:00 2001
From: Laytan Laats <laytanlaats@hotmail.com>
Date: Sun, 9 Jun 2024 02:47:05 +0200
Subject: [PATCH] fix large ints amd64 sysv abi

Fixes #3707
---
 src/llvm_abi.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/llvm_abi.cpp b/src/llvm_abi.cpp
index 85a16d321..1f7a39447 100644
--- a/src/llvm_abi.cpp
+++ b/src/llvm_abi.cpp
@@ -900,7 +900,15 @@ namespace lbAbiAmd64SysV {
 		}
 
 		switch (LLVMGetTypeKind(t)) {
-		case LLVMIntegerTypeKind:
+		case LLVMIntegerTypeKind: {
+			i64 s = t_size;
+			while (s > 0) {
+				unify(cls, ix + off/8, RegClass_Int);
+				off += 8;
+				s   -= 8;
+			}
+			break;
+		}
 		case LLVMPointerTypeKind:
 		case LLVMHalfTypeKind:
 			unify(cls, ix + off/8, RegClass_Int);