From: Peter Bergner <bergner@linux.ibm.com>
Date: Fri, 26 Feb 2021 03:35:28 +0000 (-0600)
Subject: rs6000: Fix ICE in rs6000_init_builtins when compiling with -mcpu=440 [PR99279]
X-Git-Tag: basepoints/gcc-12~842
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0159535adb0e7400f2c6922f14a7602f6b90cf69;p=thirdparty%2Fgcc.git

rs6000: Fix ICE in rs6000_init_builtins when compiling with -mcpu=440 [PR99279]

The initialization of compat builtins assumes the builtin we are creating
a compatible builtin for exists and ICEs if it doesn't.  However, there are
valid reasons why some builtins are disabled for a particular compile.
In this case, the MMA builtins are disabled for -mcpu=440 (and other cpus),
so instead of ICEing, we should just skip adding the MMA compat builtin.

2021-02-25  Peter Bergner  <bergner@linux.ibm.com>

gcc/
	PR target/99279
	* config/rs6000/rs6000-call.c (rs6000_init_builtins): Replace assert
	with an "if" test.
---

diff --git a/gcc/config/rs6000/rs6000-call.c b/gcc/config/rs6000/rs6000-call.c
index d2bd03e7a62f..f56762553878 100644
--- a/gcc/config/rs6000/rs6000-call.c
+++ b/gcc/config/rs6000/rs6000-call.c
@@ -13468,9 +13468,9 @@ rs6000_init_builtins (void)
   for (i = 0; i < ARRAY_SIZE (bdesc_compat); i++, d++)
     {
       tree decl = rs6000_builtin_decls[(int)d->code];
-      gcc_assert (decl != NULL);
-      add_builtin_function (d->name, TREE_TYPE (decl), (int)d->code,
-			    BUILT_IN_MD, NULL, NULL_TREE);
+      if (decl != NULL)
+	add_builtin_function (d->name, TREE_TYPE (decl), (int)d->code,
+			      BUILT_IN_MD, NULL, NULL_TREE);
     }
 }