[PATCH] D124135: [scudo] Disable memory tagging on arm64_32

[Dominic Chen via Phabricator via llvm-commits]

ddcc created this revision.
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arm64_32 is an ILP32 platform


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D124135

Files:
  compiler-rt/lib/scudo/standalone/memtag.h


Index: compiler-rt/lib/scudo/standalone/memtag.h
===================================================================
--- compiler-rt/lib/scudo/standalone/memtag.h
+++ compiler-rt/lib/scudo/standalone/memtag.h
@@ -18,7 +18,9 @@
 
 namespace scudo {
 
-#if (__clang_major__ >= 12 && defined(__aarch64__)) || defined(SCUDO_FUZZ)
+#if (__clang_major__ >= 12 && defined(__aarch64__) &&                          \
+     __SIZEOF_POINTER__ == 8) ||                                               \
+    defined(SCUDO_FUZZ)
 
 // We assume that Top-Byte Ignore is enabled if the architecture supports memory
 // tagging. Not all operating systems enable TBI, so we only claim architectural
@@ -57,7 +59,7 @@
 
 #endif
 
-#if __clang_major__ >= 12 && defined(__aarch64__)
+#if __clang_major__ >= 12 && defined(__aarch64__) && __SIZEOF_POINTER__ == 8
 
 #if SCUDO_LINUX
 


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