commit 164a02d0fa461c623446bb5e3ee15516bcfad13c
Author: Fangrui Song <maskray@google.com>
Date:   Fri Aug 7 13:42:09 2020 -0700

    [ELF]: --icf: don't fold sections referencing sections with LCDA after D84610

diff --git a/lld/ELF/ICF.cpp b/lld/ELF/ICF.cpp
index c9d922f558d..f3c477c1d2c 100644
--- a/lld/ELF/ICF.cpp
+++ b/lld/ELF/ICF.cpp
@@ -468,9 +468,10 @@ template <class ELFT> void ICF<ELFT>::run() {
   //
   // If two .gcc_except_table have identical semantics (usually identical
   // content with PC-relative encoding), we will lose folding opportunity.
+  uint32_t uniqueId = 0;
   for (Partition &part : partitions)
     part.ehFrame->iterateFDEWithLSDA<ELFT>(
-        [&](InputSection &s) { s.eqClass[0] = 1; });
+        [&](InputSection &s) { s.eqClass[0] = ++uniqueId; });
 
   // Collect sections to merge.
   for (InputSectionBase *sec : inputSections) {
diff --git a/lld/test/ELF/icf-eh-frame.s b/lld/test/ELF/icf-eh-frame.s
index e90df5f96d9..0b895ec8cc2 100644
--- a/lld/test/ELF/icf-eh-frame.s
+++ b/lld/test/ELF/icf-eh-frame.s
@@ -41,3 +41,10 @@ _Z1dv:
 .section .gcc_except_table,"a",@progbits
 ## The actual content does not matter.
 .Lexception0:
+
+## .rodata.Z1[ab]v reference .text.Z1[ab]v. Dont fold them.
+.section .rodata.Z1av,"a",@progbits
+  .long .text.Z1av - .
+
+.section .rodata.Z1bv,"a",@progbits
+  .long .text.Z1bv - .