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[avr,committed] Fix PR86776

Message ID d7b2e5fb-593d-45ac-999c-20811a75467d@gjlay.de
State New
Headers show
Series [avr,committed] Fix PR86776 | expand

Commit Message

Georg-Johann Lay Nov. 23, 2023, 6:09 p.m. UTC 
AVR was/is not affected by CVE-2017-5753, thus applies as obvious.

Johann

--

gcc/
         PR target/86776
         * config/avr/avr.cc (TARGET_HAVE_SPECULATION_SAFE_VALUE): Define
         to speculation_safe_value_not_needed.



  ^L
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Patch

diff --git a/gcc/config/avr/avr.cc b/gcc/config/avr/avr.cc
index c3e0995dfc3..a297f4e092a 100644
--- a/gcc/config/avr/avr.cc
+++ b/gcc/config/avr/avr.cc
@@ -15309,6 +15309,12 @@  avr_float_lib_compare_returns_bool 
(machine_mode mode, enum rtx_code)
  #undef  TARGET_CANONICALIZE_COMPARISON
  #define TARGET_CANONICALIZE_COMPARISON avr_canonicalize_comparison

+/* According to the opening comment in PR86772, the following applies:
+  "If the port does not (and never will in the future) need to mitigate
+   against unsafe speculation."  */
+#undef  TARGET_HAVE_SPECULATION_SAFE_VALUE
+#define TARGET_HAVE_SPECULATION_SAFE_VALUE 
speculation_safe_value_not_needed
+
  struct gcc_target targetm = TARGET_INITIALIZER;