From b281d47a752dd499bde0ffdde8ed84500828ee94 Mon Sep 17 00:00:00 2001
From: Zachary Yedidia <zyedidia@gmail.com>
Date: Mon, 27 Feb 2023 01:08:07 -0800
Subject: [PATCH 1/4] Fix va_arg intrinsic

---
 gen/functions.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gen/functions.cpp b/gen/functions.cpp
index a96a49cd508..fdc54582b6b 100644
--- a/gen/functions.cpp
+++ b/gen/functions.cpp
@@ -1046,6 +1046,8 @@ void DtoDefineFunction(FuncDeclaration *fd, bool linkageAvailableExternally) {
   }
 
   if (fd->ir->isDefined()) {
+    if (fd->llvmInternal == LLVMva_arg)
+      return;
     llvm::Function *func = getIrFunc(fd)->getLLVMFunc();
     assert(func);
     if (!linkageAvailableExternally &&

From 0e9f03190836063a72aeb4c34dbc55d38e9df0de Mon Sep 17 00:00:00 2001
From: Zachary Yedidia <zyedidia@gmail.com>
Date: Mon, 27 Feb 2023 01:15:24 -0800
Subject: [PATCH 2/4] Add test case

---
 tests/compilable/va_arg.d | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 tests/compilable/va_arg.d

diff --git a/tests/compilable/va_arg.d b/tests/compilable/va_arg.d
new file mode 100644
index 00000000000..05d28952be1
--- /dev/null
+++ b/tests/compilable/va_arg.d
@@ -0,0 +1,9 @@
+// RUN: %ldc -c %s
+
+alias va_list = void*;
+
+pragma(LDC_va_arg) T va_arg(T)(va_list ap);
+
+int foo(va_list ap) {
+    return va_arg!(int)(ap);
+}

From 496e7d91114b2714c264b47ff7b703aa660f0880 Mon Sep 17 00:00:00 2001
From: Zachary Yedidia <zyedidia@gmail.com>
Date: Mon, 27 Feb 2023 10:13:11 -0800
Subject: [PATCH 3/4] Restrict test further

---
 tests/compilable/va_arg.d | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tests/compilable/va_arg.d b/tests/compilable/va_arg.d
index 05d28952be1..9f1d73629e7 100644
--- a/tests/compilable/va_arg.d
+++ b/tests/compilable/va_arg.d
@@ -1,4 +1,7 @@
-// RUN: %ldc -c %s
+// REQUIRES: host_X86
+
+// RUN: %ldc -mtriple=aarch64-none-elf -c %s
+// RUN: %ldc -mtriple=riscv64-none-elf -c %s
 
 alias va_list = void*;
 

From 2bafd62662a16824999fc89fed4f9dce4eb2e534 Mon Sep 17 00:00:00 2001
From: Zachary Yedidia <zyedidia@gmail.com>
Date: Mon, 27 Feb 2023 10:42:04 -0800
Subject: [PATCH 4/4] Update test

---
 tests/compilable/va_arg.d | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/tests/compilable/va_arg.d b/tests/compilable/va_arg.d
index 9f1d73629e7..1d43be44585 100644
--- a/tests/compilable/va_arg.d
+++ b/tests/compilable/va_arg.d
@@ -1,7 +1,5 @@
-// REQUIRES: host_X86
-
 // RUN: %ldc -mtriple=aarch64-none-elf -c %s
-// RUN: %ldc -mtriple=riscv64-none-elf -c %s
+// RUN: %ldc -mtriple=riscv64-unknown-elf -c %s
 
 alias va_list = void*;