From 5f8fd54f0891aa47f467498454f6a3df8ae62704 Mon Sep 17 00:00:00 2001
From: John McCall <rjmccall@apple.com>
Date: Sun, 29 May 2011 19:50:32 +0000
Subject: [PATCH] On Darwin ARM, set the UNWIND_RESUME libcall to
_Unwind_SjLj_Resume. This is important for the correct lowering of unwind
instructions (which doesn't matter at all) and llvm.eh.resume calls (which
does).
Take 2, now with more basic competence.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132295 91177308-0d34-0410-b5e6-96231b3b80d8
---
lib/Target/ARM/ARMISelLowering.cpp | 1 +
test/CodeGen/ARM/eh-resume-darwin.ll | 29 ++++++++++++++++++++++++++++
2 files changed, 30 insertions(+)
create mode 100644 test/CodeGen/ARM/eh-resume-darwin.ll
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index a78c3ed2a4a..1e90d422bd3 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -656,6 +656,7 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM)
setOperationAction(ISD::EH_SJLJ_SETJMP, MVT::i32, Custom);
setOperationAction(ISD::EH_SJLJ_LONGJMP, MVT::Other, Custom);
setOperationAction(ISD::EH_SJLJ_DISPATCHSETUP, MVT::Other, Custom);
+ setLibcallName(RTLIB::UNWIND_RESUME, "_Unwind_SjLj_Resume");
}
setOperationAction(ISD::SETCC, MVT::i32, Expand);
diff --git a/test/CodeGen/ARM/eh-resume-darwin.ll b/test/CodeGen/ARM/eh-resume-darwin.ll
new file mode 100644
index 00000000000..e4755085de7
--- /dev/null
+++ b/test/CodeGen/ARM/eh-resume-darwin.ll
@@ -0,0 +1,29 @@
+; RUN: llc < %s -march=arm | FileCheck %s
+target triple = "armv6-apple-macosx10.6"
+
+declare void @func()
+
+declare i8* @llvm.eh.exception() nounwind readonly
+
+declare i32 @llvm.eh.selector(i8*, i8*, ...) nounwind
+
+declare void @llvm.eh.resume(i8*, i32)
+
+declare i32 @__gxx_personality_sj0(...)
+
+define void @test0() {
+entry:
+ invoke void @func()
+ to label %cont unwind label %lpad
+
+cont:
+ ret void
+
+lpad:
+ %exn = call i8* @llvm.eh.exception()
+ %sel = call i32 (i8*, i8*, ...)* @llvm.eh.selector(i8* %exn, i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*), i32 0)
+ call void @llvm.eh.resume(i8* %exn, i32 %sel) noreturn
+ unreachable
+}
+
+; CHECK: __Unwind_SjLj_Resume