Emit .cfi_sections before the first .cfi_startproc
GNU as rejects input where .cfi_sections is used after .cfi_startproc,
if the new section differs from the old. Adjust our output to always
emit .cfi_sections before the first .cfi_startproc to minimize necessary
code.
Differential Revision: https://reviews.llvm.org/D28011
llvm-svn: 290817
diff --git a/llvm/lib/CodeGen/AsmPrinter/ARMException.cpp b/llvm/lib/CodeGen/AsmPrinter/ARMException.cpp
index fff3f00..0c79def8 100644
--- a/llvm/lib/CodeGen/AsmPrinter/ARMException.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/ARMException.cpp
@@ -43,13 +43,6 @@
return static_cast<ARMTargetStreamer &>(TS);
}
-/// endModule - Emit all exception information that should come after the
-/// content.
-void ARMException::endModule() {
- if (shouldEmitCFI)
- Asm->OutStreamer->EmitCFISections(false, true);
-}
-
void ARMException::beginFunction(const MachineFunction *MF) {
if (Asm->MAI->getExceptionHandlingType() == ExceptionHandling::ARM)
getTargetStreamer().emitFnStart();
@@ -57,7 +50,13 @@
AsmPrinter::CFIMoveType MoveType = Asm->needsCFIMoves();
assert(MoveType != AsmPrinter::CFI_M_EH &&
"non-EH CFI not yet supported in prologue with EHABI lowering");
+
if (MoveType == AsmPrinter::CFI_M_Debug) {
+ if (!hasEmittedCFISections) {
+ Asm->OutStreamer->EmitCFISections(false, true);
+ hasEmittedCFISections = true;
+ }
+
shouldEmitCFI = true;
Asm->OutStreamer->EmitCFIStartProc(false);
}