From: John McCall <rjmccall@apple.com>
Date: Sun, 29 May 2011 19:39:04 +0000 (+0000)
Subject: On Darwin ARM, set the UNWIND_RESUME libcall to _Unwind_SjLj_Resume.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=832a9d1a76d30ffd295453e93e8eb52948e5813e;p=oota-llvm.git

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).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132291 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index f0e7c421133..e8f24c1e058 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -605,7 +605,7 @@ if test "$enableval" = host-only ; then
   enableval=host
 fi
 case "$enableval" in
-  all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha ARM Mips CellSPU XCore MSP430 SystemZ Blackfin CBackend CppBackend MBlaze PTX" ;;
+  all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha ARM Glulx Mips CellSPU XCore MSP430 SystemZ Blackfin CBackend CppBackend MBlaze PTX" ;;
   *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
       case "$a_target" in
         x86)      TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
@@ -614,6 +614,7 @@ case "$enableval" in
         powerpc)  TARGETS_TO_BUILD="PowerPC $TARGETS_TO_BUILD" ;;
         alpha)    TARGETS_TO_BUILD="Alpha $TARGETS_TO_BUILD" ;;
         arm)      TARGETS_TO_BUILD="ARM $TARGETS_TO_BUILD" ;;
+        glulx)    TARGETS_TO_BUILD="Glulx $TARGETS_TO_BUILD" ;;
         mips)     TARGETS_TO_BUILD="Mips $TARGETS_TO_BUILD" ;;
         spu)      TARGETS_TO_BUILD="CellSPU $TARGETS_TO_BUILD" ;;
         xcore)    TARGETS_TO_BUILD="XCore $TARGETS_TO_BUILD" ;;
diff --git a/include/llvm/ADT/Triple.h b/include/llvm/ADT/Triple.h
index 078033d8cf3..df77317e547 100644
--- a/include/llvm/ADT/Triple.h
+++ b/include/llvm/ADT/Triple.h
@@ -50,6 +50,7 @@ public:
     arm,     // ARM; arm, armv.*, xscale
     bfin,    // Blackfin: bfin
     cellspu, // CellSPU: spu, cellspu
+    glulx,   // Glulx: glulx, glulx1, glulx2, glulx3
     mips,    // MIPS: mips, mipsallegrex
     mipsel,  // MIPSEL: mipsel, mipsallegrexel, psp
     msp430,  // MSP430: msp430
diff --git a/lib/Support/Triple.cpp b/lib/Support/Triple.cpp
index dbdb303a4fd..56b0878aa76 100644
--- a/lib/Support/Triple.cpp
+++ b/lib/Support/Triple.cpp
@@ -27,6 +27,7 @@ const char *Triple::getArchTypeName(ArchType Kind) {
   case arm:     return "arm";
   case bfin:    return "bfin";
   case cellspu: return "cellspu";
+  case glulx:   return "glulx";
   case mips:    return "mips";
   case mipsel:  return "mipsel";
   case msp430:  return "msp430";
@@ -62,6 +63,8 @@ const char *Triple::getArchTypePrefix(ArchType Kind) {
 
   case cellspu: return "spu";
 
+  case glulx:   return "glulx";
+
   case ppc64:
   case ppc:     return "ppc";
 
@@ -139,6 +142,8 @@ Triple::ArchType Triple::getArchTypeForLLVMName(StringRef Name) {
     return bfin;
   if (Name == "cellspu")
     return cellspu;
+  if (Name == "glulx")
+    return glulx;
   if (Name == "mips")
     return mips;
   if (Name == "mipsel")
@@ -277,6 +282,8 @@ Triple::ArchType Triple::ParseArch(StringRef ArchName) {
     return thumb;
   else if (ArchName.startswith("alpha"))
     return alpha;
+  else if (ArchName.startswith("glulx"))
+    return glulx;
   else if (ArchName == "spu" || ArchName == "cellspu")
     return cellspu;
   else if (ArchName == "msp430")
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