<div dir="ltr">Please include details about the reason for a revert/recommit in commit messages to help reviewers/other readers understand what's being addressed by these patches.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Jun 8, 2022 at 1:53 PM Florian Mayer via llvm-commits <<a href="mailto:llvm-commits@lists.llvm.org">llvm-commits@lists.llvm.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
Author: Florian Mayer<br>
Date: 2022-06-08T13:53:00-07:00<br>
New Revision: 0d54a874ee2449fdf081aeee07bc71e589f56251<br>
<br>
URL: <a href="https://github.com/llvm/llvm-project/commit/0d54a874ee2449fdf081aeee07bc71e589f56251" rel="noreferrer" target="_blank">https://github.com/llvm/llvm-project/commit/0d54a874ee2449fdf081aeee07bc71e589f56251</a><br>
DIFF: <a href="https://github.com/llvm/llvm-project/commit/0d54a874ee2449fdf081aeee07bc71e589f56251.diff" rel="noreferrer" target="_blank">https://github.com/llvm/llvm-project/commit/0d54a874ee2449fdf081aeee07bc71e589f56251.diff</a><br>
<br>
LOG: Revert "[DWARF] Support 'G' in dwarf parser"<br>
<br>
This reverts commit 4c71c3386c5c79560517a22e75938c9951f8de68.<br>
<br>
Added: <br>
<br>
<br>
Modified: <br>
    llvm/lib/DebugInfo/DWARF/DWARFDebugFrame.cpp<br>
<br>
Removed: <br>
    llvm/test/DebugInfo/AArch64/stack-tagging-cfi.s<br>
<br>
<br>
################################################################################<br>
diff  --git a/llvm/lib/DebugInfo/DWARF/DWARFDebugFrame.cpp b/llvm/lib/DebugInfo/DWARF/DWARFDebugFrame.cpp<br>
index 9e5cbc601546..86b4a2fe270f 100644<br>
--- a/llvm/lib/DebugInfo/DWARF/DWARFDebugFrame.cpp<br>
+++ b/llvm/lib/DebugInfo/DWARF/DWARFDebugFrame.cpp<br>
@@ -1138,10 +1138,6 @@ Error DWARFDebugFrame::parse(DWARFDataExtractor Data) {<br>
             // B-Key is used for signing functions associated with this<br>
             // augmentation string<br>
             break;<br>
-            // This stack frame contains MTE tagged data, so needs to be<br>
-            // untagged on unwind.<br>
-          case 'G':<br>
-            break;<br>
           }<br>
         }<br>
<br>
<br>
diff  --git a/llvm/test/DebugInfo/AArch64/stack-tagging-cfi.s b/llvm/test/DebugInfo/AArch64/stack-tagging-cfi.s<br>
deleted file mode 100644<br>
index a5e9c24261bc..000000000000<br>
--- a/llvm/test/DebugInfo/AArch64/stack-tagging-cfi.s<br>
+++ /dev/null<br>
@@ -1,16 +0,0 @@<br>
-# RUN: llvm-mc -filetype=obj -triple aarch64 -mattr=+mte %s -o %t.o<br>
-# RUN: llvm-dwarfdump --eh-frame %t.o | FileCheck %s<br>
-<br>
-# CHECK: Augmentation:          "zRG"<br>
-<br>
-       .text<br>
-       .globl  WithUnwind<br>
-       .p2align        2<br>
-       .type   WithUnwind,@function<br>
-WithUnwind:<br>
-       .cfi_startproc<br>
-       .cfi_mte_tagged_frame<br>
-       ret<br>
-.Lfunc_end0:<br>
-       .size   WithUnwind, .Lfunc_end0-WithUnwind<br>
-       .cfi_endproc<br>
<br>
<br>
<br>
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</blockquote></div>