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From: Andrew Carlotti <Andrew.Carlotti@arm.com>
To: "gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>
Subject: [PATCH] aarch64: Fix pure/const function attributes for intrinsics
Date: Thu, 30 Jun 2022 16:03:34 +0000	[thread overview]
Message-ID: <AS8PR08MB66781F579B4CE1794C246CB3F4BA9@AS8PR08MB6678.eurprd08.prod.outlook.com> (raw)

No testcase for this, since I haven't found a way to turn the incorrect
attribute into incorrect codegen.

Bootstrapped and tested on aarch64-none-linux gnu.

gcc/

	* config/aarch64/aarch64-builtins.c
	(aarch64_get_attributes): Fix choice of pure/const attributes.

---

diff --git a/gcc/config/aarch64/aarch64-builtins.cc b/gcc/config/aarch64/aarch64-builtins.cc
index e0a741ac663188713e21f457affa57217d074783..877f54aab787862794413259cd36ca0fb7bd49c5 100644
--- a/gcc/config/aarch64/aarch64-builtins.cc
+++ b/gcc/config/aarch64/aarch64-builtins.cc
@@ -1085,9 +1085,9 @@ aarch64_get_attributes (unsigned int f, machine_mode mode)
   if (!aarch64_modifies_global_state_p (f, mode))
     {
       if (aarch64_reads_global_state_p (f, mode))
-       attrs = aarch64_add_attribute ("pure", attrs);
-      else
        attrs = aarch64_add_attribute ("const", attrs);
+      else
+       attrs = aarch64_add_attribute ("pure", attrs);
     }

   if (!flag_non_call_exceptions || !aarch64_could_trap_p (f, mode))

             reply	other threads:[~2022-06-30 16:03 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-30 16:03 Andrew Carlotti [this message]
2022-07-01  6:42 ` Richard Biener
2022-07-01 15:59   ` Andrew Carlotti
2022-07-04  6:49     ` Richard Biener

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