forked from pool/gcc15
Richard Biener
e0a5150463
- Take patches inherited from GCC 14.
* gcc-add-defaultsspec.diff, add the ability to provide a specs
file that is read by default
* tls-no-direct.diff, avoid direct %fs references on x86 to not
slow down Xen
* gcc43-no-unwind-tables.diff, do not produce unwind tables for
CRT files
* gcc41-ppc32-retaddr.patch, fix expansion of __builtin_return_addr
for ppc, just a testcase
* gcc44-textdomain.patch, make translation files version specific
and adjust textdomain to find them
* gcc44-rename-info-files.patch, fix cross-references in info files
when renaming them to be version specific
* gcc48-libstdc++-api-reference.patch, fix link in the installed
libstdc++ html documentation
* gcc7-remove-Wexpansion-to-defined-from-Wextra.patch, removes
new warning from -Wextra
* gcc7-avoid-fixinc-error.diff
* gcc9-reproducible-builds-buildid-for-checksum.patch
* gcc9-reproducible-builds.patch
* gcc11-gdwarf-4-default.patch, default to -gdwarf-4 on old products
OBS-URL: https://build.opensuse.org/package/show/devel:gcc/gcc15?expand=0&rev=1
92 lines
2.1 KiB
Diff
92 lines
2.1 KiB
Diff
2005-11-28 Jakub Jelinek <jakub@redhat.com>
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* config/rs6000/rs6000.c (rs6000_return_addr): If COUNT == 0,
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read word RETURN_ADDRESS_OFFSET bytes above arg_pointer_rtx
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instead of doing an extran indirection from frame_pointer_rtx.
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* gcc.dg/20051128-1.c: New test.
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#Index: gcc/config/rs6000/rs6000.cc
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#===================================================================
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#--- gcc/config/rs6000/rs6000.cc.orig 2013-11-26 15:42:33.000000000 +0100
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#+++ gcc/config/rs6000/rs6000.cc 2013-11-26 16:44:14.566089231 +0100
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#@@ -20878,18 +20878,22 @@ rs6000_return_addr (int count, rtx frame
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if (count != 0
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|| ((DEFAULT_ABI == ABI_V4 || DEFAULT_ABI == ABI_DARWIN) && flag_pic))
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{
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+ rtx x;
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cfun->machine->ra_needs_full_frame = 1;
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- return
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- gen_rtx_MEM
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- (Pmode,
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- memory_address
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- (Pmode,
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- plus_constant (Pmode,
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- copy_to_reg
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- (gen_rtx_MEM (Pmode,
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- memory_address (Pmode, frame))),
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- RETURN_ADDRESS_OFFSET)));
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+ if (count == 0)
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+ {
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+ gcc_assert (frame == frame_pointer_rtx);
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+ x = arg_pointer_rtx;
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+ }
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+ else
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+ {
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+ x = memory_address (Pmode, frame);
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+ x = copy_to_reg (gen_rtx_MEM (Pmode, x));
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+ }
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+
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+ x = plus_constant (Pmode, x, RETURN_ADDRESS_OFFSET);
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+ return gen_rtx_MEM (Pmode, memory_address (Pmode, x));
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}
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cfun->machine->ra_need_lr = 1;
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Index: gcc/testsuite/gcc.dg/20051128-1.c
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===================================================================
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--- /dev/null 1970-01-01 00:00:00.000000000 +0000
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+++ gcc/testsuite/gcc.dg/20051128-1.c 2013-11-26 16:44:14.566089231 +0100
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@@ -0,0 +1,41 @@
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+/* { dg-do run } */
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+/* { dg-options "-O2 -fpic" } */
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+
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+extern void exit (int);
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+extern void abort (void);
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+
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+int b;
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+
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+struct A
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+{
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+ void *pad[147];
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+ void *ra, *h;
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+ long o;
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+};
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+
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+void
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+__attribute__((noinline))
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+foo (struct A *a, void *x)
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+{
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+ __builtin_memset (a, 0, sizeof (a));
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+ if (!b)
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+ exit (0);
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+}
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+
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+void
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+__attribute__((noinline))
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+bar (void)
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+{
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+ struct A a;
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+
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+ __builtin_unwind_init ();
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+ foo (&a, __builtin_return_address (0));
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+}
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+
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+int
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+main (void)
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+{
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+ bar ();
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+ abort ();
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+ return 0;
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+}
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