[ARM][Debug Info] Restore emitting of .cfi_def_cfa_offset for functions without stack frame
Summary: Looks like new code from [[ http://reviews.llvm.org/rL222057 | rL222057 ]] doesn't account for early `return` in `ARMFrameLowering::emitPrologue`, which leads to loosing `.cfi_def_cfa_offset` directive for functions without stack frame.
Reviewers: echristo, rengolin, asl, t.p.northover
Reviewed By: t.p.northover
Subscribers: llvm-commits, rengolin, aemerson
Differential Revision: http://reviews.llvm.org/D8606
llvm-svn: 234399
diff --git a/llvm/lib/Target/ARM/ARMFrameLowering.cpp b/llvm/lib/Target/ARM/ARMFrameLowering.cpp
index 830953b..9d2b09b 100644
--- a/llvm/lib/Target/ARM/ARMFrameLowering.cpp
+++ b/llvm/lib/Target/ARM/ARMFrameLowering.cpp
@@ -311,6 +311,7 @@
return;
StackAdjustingInsts DefCFAOffsetCandidates;
+ bool HasFP = hasFP(MF);
// Allocate the vararg register save area.
if (ArgRegsSaveSize) {
@@ -327,6 +328,7 @@
DefCFAOffsetCandidates.addInst(std::prev(MBBI),
NumBytes - ArgRegsSaveSize, true);
}
+ DefCFAOffsetCandidates.emitDefCFAOffsets(MMI, MBB, dl, TII, HasFP);
return;
}
@@ -375,7 +377,6 @@
}
// Determine starting offsets of spill areas.
- bool HasFP = hasFP(MF);
unsigned GPRCS1Offset = NumBytes - ArgRegsSaveSize - GPRCS1Size;
unsigned GPRCS2Offset = GPRCS1Offset - GPRCS2Size;
unsigned DPRAlign = DPRCSSize ? std::min(8U, Align) : 4U;