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| author |   Juro Bystricky <juro.bystricky@intel.com> | 2018-03-01 10:32:43 -0800 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2018-03-12 16:35:38 -0700 |
| commit | f59291f9a3a7ef65206ef0503ce27eb61dc95caf (patch) | |
| tree | 4817bb77245d0c51daf715a8a92918dffad53543 /meta/recipes-devtools/gcc/gcc-6.4/backport/0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch | |
| parent | e0d856d64f9e2afd762d6d40bcc6c8dc5e06b430 (diff) | |
| download | openembedded-core-f59291f9a3a7ef65206ef0503ce27eb61dc95caf.tar.gz | |
gcc6: Backport few more patches
Backported series of patches from https://github.com/hjl-tools/gcc.git
branch /hjl/indirect/gcc-6-branch/master which contains
an IA patch series for security related issues
Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Diffstat (limited to 'meta/recipes-devtools/gcc/gcc-6.4/backport/0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch')
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc-6.4/backport/0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-6.4/backport/0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch b/meta/recipes-devtools/gcc/gcc-6.4/backport/0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch new file mode 100644 index 0000000000..df65b08f93 --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc-6.4/backport/0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch @@ -0,0 +1,74 @@ +From fe2b3be3f4b6ec6b3a6f89c26016a3983b7cb351 Mon Sep 17 00:00:00 2001 +From: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> +Date: Mon, 15 Jan 2018 11:28:44 +0000 +Subject: [PATCH 02/12] i386: Use reference of struct ix86_frame to avoid copy + +When there is no need to make a copy of ix86_frame, we can use reference +of struct ix86_frame to avoid copy. + + Backport from mainline + 2017-11-06 H.J. Lu <hongjiu.lu@intel.com> + + * config/i386/i386.c (ix86_can_use_return_insn_p): Use reference + of struct ix86_frame. + (ix86_initial_elimination_offset): Likewise. + (ix86_expand_split_stack_prologue): Likewise. + +Upstream-Status: Pending + +Signed-off-by: Juro Bystricky <juro.bystricky@intel.com> + +--- + gcc/config/i386/i386.c | 8 +++----- + 1 file changed, 3 insertions(+), 5 deletions(-) + +diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c +index a1ff32b..13ebf10 100644 +--- a/gcc/config/i386/i386.c ++++ b/gcc/config/i386/i386.c +@@ -10887,7 +10887,6 @@ symbolic_reference_mentioned_p (rtx op) + bool + ix86_can_use_return_insn_p (void) + { +- struct ix86_frame frame; + + if (! reload_completed || frame_pointer_needed) + return 0; +@@ -10898,7 +10897,7 @@ ix86_can_use_return_insn_p (void) + return 0; + + ix86_compute_frame_layout (); +- frame = cfun->machine->frame; ++ struct ix86_frame &frame = cfun->machine->frame; + return (frame.stack_pointer_offset == UNITS_PER_WORD + && (frame.nregs + frame.nsseregs) == 0); + } +@@ -11310,7 +11309,7 @@ HOST_WIDE_INT + ix86_initial_elimination_offset (int from, int to) + { + ix86_compute_frame_layout (); +- struct ix86_frame frame = cfun->machine->frame; ++ struct ix86_frame &frame = cfun->machine->frame; + + if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM) + return frame.hard_frame_pointer_offset; +@@ -13821,7 +13820,6 @@ static GTY(()) rtx split_stack_fn_large; + void + ix86_expand_split_stack_prologue (void) + { +- struct ix86_frame frame; + HOST_WIDE_INT allocate; + unsigned HOST_WIDE_INT args_size; + rtx_code_label *label; +@@ -13834,7 +13832,7 @@ ix86_expand_split_stack_prologue (void) + + ix86_finalize_stack_realign_flags (); + ix86_compute_frame_layout (); +- frame = cfun->machine->frame; ++ struct ix86_frame &frame = cfun->machine->frame; + allocate = frame.stack_pointer_offset - INCOMING_FRAME_SP_OFFSET; + + /* This is the label we will branch to if we have enough stack +-- +2.7.4 + |