From 1691074b4b1f080b3a1f7ca7dc7426c6ef4c242a Mon Sep 17 00:00:00 2001
From: Andrew Kelley <superjoe30@gmail.com>
Date: Thu, 27 Apr 2017 18:40:17 -0400
Subject: add no-elim-base-pointer to __zig_fail function

fixes missing frame for unwrapping an error

closes #345
---
 src/codegen.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/codegen.cpp')

diff --git a/src/codegen.cpp b/src/codegen.cpp
index a80610b731..2b48450711 100644
--- a/src/codegen.cpp
+++ b/src/codegen.cpp
@@ -720,6 +720,11 @@ static LLVMValueRef get_safety_crash_err_fn(CodeGen *g) {
     addLLVMFnAttr(fn_val, "cold");
     LLVMSetLinkage(fn_val, LLVMInternalLinkage);
     LLVMSetFunctionCallConv(fn_val, LLVMFastCallConv);
+    addLLVMFnAttr(fn_val, "nounwind");
+    if (!g->is_release_build) {
+        ZigLLVMAddFunctionAttr(fn_val, "no-frame-pointer-elim", "true");
+        ZigLLVMAddFunctionAttr(fn_val, "no-frame-pointer-elim-non-leaf", nullptr);
+    }
 
     LLVMBasicBlockRef entry_block = LLVMAppendBasicBlock(fn_val, "Entry");
     LLVMBasicBlockRef prev_block = LLVMGetInsertBlock(g->builder);
-- 
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