Merge branch 'f27' of ssh://pkgs.fedoraproject.org/rpms/gcc into f27
This commit is contained in:
commit
e80913359b
15
gcc.spec
15
gcc.spec
@ -4,7 +4,7 @@
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%global gcc_major 7
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%global gcc_major 7
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# Note, gcc_release must be integer, if you want to add suffixes to
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# Note, gcc_release must be integer, if you want to add suffixes to
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# %{release}, append them after %{gcc_release} on Release: line.
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# %{release}, append them after %{gcc_release} on Release: line.
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%global gcc_release 2
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%global gcc_release 4
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%global nvptx_tools_gitrev c28050f60193b3b95a18866a96f03334e874e78f
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%global nvptx_tools_gitrev c28050f60193b3b95a18866a96f03334e874e78f
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%global nvptx_newlib_gitrev aadc8eb0ec43b7cd0dd2dfb484bae63c8b05ef24
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%global nvptx_newlib_gitrev aadc8eb0ec43b7cd0dd2dfb484bae63c8b05ef24
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%global _unpackaged_files_terminate_build 0
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%global _unpackaged_files_terminate_build 0
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@ -238,6 +238,7 @@ Patch11: gcc7-Wno-format-security.patch
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Patch12: gcc7-aarch64-sanitizer-fix.patch
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Patch12: gcc7-aarch64-sanitizer-fix.patch
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Patch13: gcc7-rh1512529-aarch64.patch
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Patch13: gcc7-rh1512529-aarch64.patch
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Patch14: gcc7-pr84524.patch
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Patch14: gcc7-pr84524.patch
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Patch15: gcc7-pr84128.patch
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Patch1000: nvptx-tools-no-ptxas.patch
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Patch1000: nvptx-tools-no-ptxas.patch
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Patch1001: nvptx-tools-build.patch
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Patch1001: nvptx-tools-build.patch
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@ -851,6 +852,7 @@ package or when debugging this package.
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%endif
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%endif
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%patch13 -p0 -b .rh1512529-aarch64~
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%patch13 -p0 -b .rh1512529-aarch64~
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%patch14 -p0 -b .pr84524~
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%patch14 -p0 -b .pr84524~
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%patch15 -p0 -b .pr84128~
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cd nvptx-tools-%{nvptx_tools_gitrev}
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cd nvptx-tools-%{nvptx_tools_gitrev}
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%patch1000 -p1 -b .nvptx-tools-no-ptxas~
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%patch1000 -p1 -b .nvptx-tools-no-ptxas~
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@ -1071,7 +1073,7 @@ CONFIGURE_OPTS="\
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%ifarch ppc64le
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%ifarch ppc64le
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--enable-targets=powerpcle-linux \
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--enable-targets=powerpcle-linux \
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%endif
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%endif
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%ifarch ppc64le %{mips}
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%ifarch ppc64le %{mips} riscv64
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--disable-multilib \
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--disable-multilib \
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%else
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%else
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--enable-multilib \
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--enable-multilib \
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@ -3270,7 +3272,7 @@ fi
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%endif
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%endif
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%changelog
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%changelog
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* Sat Feb 3 2018 Jakub Jelinek <jakub@redhat.com> 7.3.1-3
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* Sat Feb 3 2018 Jakub Jelinek <jakub@redhat.com> 7.3.1-5
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- update from the 7 branch
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- update from the 7 branch
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- PRs ada/84277, bootstrap/80867, bootstrap/82916, bootstrap/84017,
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- PRs ada/84277, bootstrap/80867, bootstrap/82916, bootstrap/84017,
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c++/71569, c++/71784, c++/81589, c++/81853, c++/81860, c++/82664,
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c++/71569, c++/71784, c++/81589, c++/81853, c++/81860, c++/82664,
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@ -3300,6 +3302,13 @@ fi
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- fix AVX512BW wrong-code bug (PR target/84524)
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- fix AVX512BW wrong-code bug (PR target/84524)
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- fix go provides/requires (#1545071)
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- fix go provides/requires (#1545071)
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* Mon Feb 5 2018 Richard W.M. Jones <rjones@redhat.com> 7.3.1-4
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- disable multilib on riscv64
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* Thu Feb 1 2018 Jeff Law <law@redhat.com> 7.3.1-3
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- fix -fstack-clash-protection codegen issue on 32 bit x86
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(#1540221, PR target/84128)
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* Tue Jan 30 2018 Jakub Jelinek <jakub@redhat.com> 7.3.1-2
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* Tue Jan 30 2018 Jakub Jelinek <jakub@redhat.com> 7.3.1-2
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- update from the 7 branch
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- update from the 7 branch
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- PRs c++/82461, c++/82878, libstdc++/81076, libstdc++/83658,
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- PRs c++/82461, c++/82878, libstdc++/81076, libstdc++/83658,
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180
gcc7-pr84128.patch
Normal file
180
gcc7-pr84128.patch
Normal file
@ -0,0 +1,180 @@
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PR target/84128
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* config/i386/i386.c (release_scratch_register_on_entry): Add new
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OFFSET and RELEASE_VIA_POP arguments. Use SP+OFFSET to restore
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the scratch if RELEASE_VIA_POP is false.
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(ix86_adjust_stack_and_probe_stack_clash): Un-constify SIZE.
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If we have to save a temporary register, decrement SIZE appropriately.
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Pass new arguments to release_scratch_register_on_entry.
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(ix86_adjust_stack_and_probe): Likewise.
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(ix86_emit_probe_stack_range): Pass new arguments to
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release_scratch_register_on_entry.
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PR target/84128
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* gcc.target/i386/pr84128.c: New test.
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diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
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index fef34a1..3196ac4 100644
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--- gcc/config/i386/i386.c
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+++ gcc/config/i386/i386.c
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@@ -12567,22 +12567,39 @@ get_scratch_register_on_entry (struct scratch_reg *sr)
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}
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}
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-/* Release a scratch register obtained from the preceding function. */
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+/* Release a scratch register obtained from the preceding function.
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+
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+ If RELEASE_VIA_POP is true, we just pop the register off the stack
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+ to release it. This is what non-Linux systems use with -fstack-check.
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+
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+ Otherwise we use OFFSET to locate the saved register and the
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+ allocated stack space becomes part of the local frame and is
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+ deallocated by the epilogue. */
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static void
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-release_scratch_register_on_entry (struct scratch_reg *sr)
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+release_scratch_register_on_entry (struct scratch_reg *sr, HOST_WIDE_INT offset,
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+ bool release_via_pop)
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{
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if (sr->saved)
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{
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- struct machine_function *m = cfun->machine;
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- rtx x, insn = emit_insn (gen_pop (sr->reg));
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+ if (release_via_pop)
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+ {
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+ struct machine_function *m = cfun->machine;
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+ rtx x, insn = emit_insn (gen_pop (sr->reg));
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- /* The RTX_FRAME_RELATED_P mechanism doesn't know about pop. */
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- RTX_FRAME_RELATED_P (insn) = 1;
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- x = gen_rtx_PLUS (Pmode, stack_pointer_rtx, GEN_INT (UNITS_PER_WORD));
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- x = gen_rtx_SET (stack_pointer_rtx, x);
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- add_reg_note (insn, REG_FRAME_RELATED_EXPR, x);
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- m->fs.sp_offset -= UNITS_PER_WORD;
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+ /* The RX FRAME_RELATED_P mechanism doesn't know about pop. */
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+ RTX_FRAME_RELATED_P (insn) = 1;
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+ x = gen_rtx_PLUS (Pmode, stack_pointer_rtx, GEN_INT (UNITS_PER_WORD));
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+ x = gen_rtx_SET (stack_pointer_rtx, x);
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+ add_reg_note (insn, REG_FRAME_RELATED_EXPR, x);
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+ m->fs.sp_offset -= UNITS_PER_WORD;
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+ }
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+ else
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+ {
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+ rtx x = gen_rtx_PLUS (Pmode, stack_pointer_rtx, GEN_INT (offset));
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+ x = gen_rtx_SET (sr->reg, gen_rtx_MEM (word_mode, x));
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+ emit_insn (x);
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+ }
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}
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}
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@@ -12597,7 +12614,7 @@ release_scratch_register_on_entry (struct scratch_reg *sr)
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pushed on the stack. */
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static void
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-ix86_adjust_stack_and_probe_stack_clash (const HOST_WIDE_INT size,
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+ix86_adjust_stack_and_probe_stack_clash (HOST_WIDE_INT size,
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const bool int_registers_saved)
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{
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struct machine_function *m = cfun->machine;
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@@ -12713,6 +12730,12 @@ ix86_adjust_stack_and_probe_stack_clash (const HOST_WIDE_INT size,
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struct scratch_reg sr;
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get_scratch_register_on_entry (&sr);
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+ /* If we needed to save a register, then account for any space
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+ that was pushed (we are not going to pop the register when
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+ we do the restore). */
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+ if (sr.saved)
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+ size -= UNITS_PER_WORD;
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+
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/* Step 1: round SIZE down to a multiple of the interval. */
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HOST_WIDE_INT rounded_size = size & -probe_interval;
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@@ -12761,7 +12784,9 @@ ix86_adjust_stack_and_probe_stack_clash (const HOST_WIDE_INT size,
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m->fs.cfa_reg == stack_pointer_rtx);
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dump_stack_clash_frame_info (PROBE_LOOP, size != rounded_size);
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- release_scratch_register_on_entry (&sr);
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+ /* This does not deallocate the space reserved for the scratch
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+ register. That will be deallocated in the epilogue. */
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+ release_scratch_register_on_entry (&sr, size, false);
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}
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/* Make sure nothing is scheduled before we are done. */
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@@ -12774,7 +12799,7 @@ ix86_adjust_stack_and_probe_stack_clash (const HOST_WIDE_INT size,
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pushed on the stack. */
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static void
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-ix86_adjust_stack_and_probe (const HOST_WIDE_INT size,
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+ix86_adjust_stack_and_probe (HOST_WIDE_INT size,
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const bool int_registers_saved)
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{
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/* We skip the probe for the first interval + a small dope of 4 words and
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@@ -12847,6 +12872,11 @@ ix86_adjust_stack_and_probe (const HOST_WIDE_INT size,
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get_scratch_register_on_entry (&sr);
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+ /* If we needed to save a register, then account for any space
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+ that was pushed (we are not going to pop the register when
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+ we do the restore). */
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+ if (sr.saved)
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+ size -= UNITS_PER_WORD;
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/* Step 1: round SIZE to the previous multiple of the interval. */
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@@ -12906,7 +12936,9 @@ ix86_adjust_stack_and_probe (const HOST_WIDE_INT size,
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(get_probe_interval ()
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+ dope))));
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- release_scratch_register_on_entry (&sr);
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+ /* This does not deallocate the space reserved for the scratch
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+ register. That will be deallocated in the epilogue. */
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+ release_scratch_register_on_entry (&sr, size, false);
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}
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/* Even if the stack pointer isn't the CFA register, we need to correctly
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@@ -13055,7 +13087,7 @@ ix86_emit_probe_stack_range (HOST_WIDE_INT first, HOST_WIDE_INT size,
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sr.reg),
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rounded_size - size));
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- release_scratch_register_on_entry (&sr);
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+ release_scratch_register_on_entry (&sr, size, true);
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}
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/* Make sure nothing is scheduled before we are done. */
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diff --git a/gcc/testsuite/gcc.target/i386/pr84128.c b/gcc/testsuite/gcc.target/i386/pr84128.c
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new file mode 100644
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index 0000000..a8323fd6
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--- /dev/null
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+++ gcc/testsuite/gcc.target/i386/pr84128.c
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@@ -0,0 +1,30 @@
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+/* { dg-do run } */
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+/* { dg-options "-O2 -march=i686 -mtune=generic -fstack-clash-protection" } */
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+/* { dg-require-effective-target ia32 } */
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+
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+__attribute__ ((noinline, noclone, weak, regparm (3)))
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+int
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+f1 (long arg0, int (*pf) (long, void *))
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+{
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+ unsigned char buf[32768];
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+ return pf (arg0, buf);
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+}
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+
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+__attribute__ ((noinline, noclone, weak))
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+int
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+f2 (long arg0, void *ignored)
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|
+{
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+ if (arg0 != 17)
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+ __builtin_abort ();
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+ return 19;
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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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|
+ if (f1 (17, f2) != 19)
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|
+ __builtin_abort ();
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|
+ return 0;
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|
+}
|
||||||
|
+
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||||||
|
+
|
Loading…
Reference in New Issue
Block a user