commit: 8f787f42d02e70eda8dd2dd98a56f2fa72c82894 Author: Sergei Trofimovich <slyfox <AT> gentoo <DOT> org> AuthorDate: Sat Sep 15 19:29:50 2018 +0000 Commit: Sergei Trofimovich <slyfox <AT> gentoo <DOT> org> CommitDate: Sat Sep 15 19:29:50 2018 +0000 URL: https://gitweb.gentoo.org/proj/gcc-patches.git/commit/?id=8f787f42
8.2.0: fix mmix, PR85666 Bug: https://gcc.gnu.org/PR85666 Signed-off-by: Sergei Trofimovich <slyfox <AT> gentoo.org> 8.2.0/gentoo/103_all_mmix-fix-85666-p1.patch | 41 ++++++++++++++++++++++++++++ 8.2.0/gentoo/104_all_mmix-fix-85666-p2.patch | 30 ++++++++++++++++++++ 8.2.0/gentoo/README.history | 2 ++ 3 files changed, 73 insertions(+) diff --git a/8.2.0/gentoo/103_all_mmix-fix-85666-p1.patch b/8.2.0/gentoo/103_all_mmix-fix-85666-p1.patch new file mode 100644 index 0000000..ba74682 --- /dev/null +++ b/8.2.0/gentoo/103_all_mmix-fix-85666-p1.patch @@ -0,0 +1,41 @@ +From e66a5c025d0c3f4731a5f65ed2e6dbaf89bfaace Mon Sep 17 00:00:00 2001 +From: hp <hp@138bc75d-0d04-0410-961f-82ee72b054a4> +Date: Sun, 9 Sep 2018 18:05:48 +0000 +Subject: [PATCH] PR target/85666 * config/mmix/mmix.c + (MMIX_CFUN_NEEDS_SAVED_EH_RETURN_ADDRESS): Don't call leaf_function_p, + instead use has_hard_reg_initial_val. + +git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@264182 138bc75d-0d04-0410-961f-82ee72b054a4 +--- a/gcc/config/mmix/mmix.c ++++ b/gcc/config/mmix/mmix.c +@@ -60,19 +60,16 @@ along with GCC; see the file COPYING3. If not see + + /* We have no means to tell DWARF 2 about the register stack, so we need + to store the return address on the stack if an exception can get into +- this function. FIXME: Narrow condition. Before any whole-function +- analysis, df_regs_ever_live_p () isn't initialized. We know it's up-to-date +- after reload_completed; it may contain incorrect information some time +- before that. Within a RTL sequence (after a call to start_sequence, +- such as in RTL expanders), leaf_function_p doesn't see all insns +- (perhaps any insn). But regs_ever_live is up-to-date when +- leaf_function_p () isn't, so we "or" them together to get accurate +- information. FIXME: Some tweak to leaf_function_p might be +- preferable. */ ++ this function. We'll have an "initial value" recorded for the ++ return-register if we've seen a call instruction emitted. This note ++ will be inaccurate before instructions are emitted, but the only caller ++ at that time is looking for modulo from stack-boundary, to which the ++ return-address does not contribute, and which is always 0 for MMIX ++ anyway. Beware of calling leaf_function_p here, as it'll abort if ++ called within a sequence. */ + #define MMIX_CFUN_NEEDS_SAVED_EH_RETURN_ADDRESS \ + (flag_exceptions \ +- && ((reload_completed && df_regs_ever_live_p (MMIX_rJ_REGNUM)) \ +- || !leaf_function_p ())) ++ && has_hard_reg_initial_val (Pmode, MMIX_INCOMING_RETURN_ADDRESS_REGNUM)) + + #define IS_MMIX_EH_RETURN_DATA_REG(REGNO) \ + (crtl->calls_eh_return \ +-- +2.19.0 + diff --git a/8.2.0/gentoo/104_all_mmix-fix-85666-p2.patch b/8.2.0/gentoo/104_all_mmix-fix-85666-p2.patch new file mode 100644 index 0000000..2c0f056 --- /dev/null +++ b/8.2.0/gentoo/104_all_mmix-fix-85666-p2.patch @@ -0,0 +1,30 @@ +From 919e63e824a673c63575f753c861c330860e632a Mon Sep 17 00:00:00 2001 +From: hp <hp@138bc75d-0d04-0410-961f-82ee72b054a4> +Date: Sun, 9 Sep 2018 18:12:14 +0000 +Subject: [PATCH] PR target/85666 * config/mmix/mmix.c + (mmix_assemble_integer): Handle byte-size non-CONST_INT rtx:es using + assemble_integer_with_op ".byte". + +git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@264183 138bc75d-0d04-0410-961f-82ee72b054a4 +--- a/gcc/config/mmix/mmix.c ++++ b/gcc/config/mmix/mmix.c +@@ -1370,8 +1370,14 @@ mmix_assemble_integer (rtx x, unsigned int size, int aligned_p) + case 1: + if (GET_CODE (x) != CONST_INT) + { +- aligned_p = 0; +- break; ++ /* There is no "unaligned byte" op or generic function to ++ which we can punt, so we have to handle this here. As ++ the expression isn't a plain literal, the generated ++ assembly-code can't be mmixal-equivalent (i.e. "BYTE" ++ won't work) and thus it's ok to emit the default op ++ ".byte". */ ++ assemble_integer_with_op ("\t.byte\t", x); ++ return true; + } + fputs ("\tBYTE\t", asm_out_file); + mmix_print_operand (asm_out_file, x, 'B'); +-- +2.19.0 + diff --git a/8.2.0/gentoo/README.history b/8.2.0/gentoo/README.history index b0c5ea5..7e89be2 100644 --- a/8.2.0/gentoo/README.history +++ b/8.2.0/gentoo/README.history @@ -1,6 +1,8 @@ 1.3 TODO + 101_all_x32-fix-eh-return-address.patch + 102_all_respect-build-cxxflags.patch + + 103_all_mmix-fix-85666-p1.patch + + 104_all_mmix-fix-85666-p2.patch 1.2 12 Aug 2018 - 100_all-isl-include.patch + 100_all_isl-include.patch
