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| author |   Khem Raj <raj.khem@gmail.com> | 2017-10-07 10:29:23 -0700 |
|---|---|---|
| committer |   Martin Jansa <Martin.Jansa@gmail.com> | 2018-03-10 23:27:57 +0000 |
| commit | 7f5485d2b8f978964f1f932fd328c98d0a1872c0 (patch) | |
| tree | 66489b69f687e304aa2e537bb0fdf01eaa1ea7c9 | |
| parent | 063f5558ef2040b6d2c34caa553ed09733fc6470 (diff) | |
| download | openembedded-core-7f5485d2b8f978964f1f932fd328c98d0a1872c0.tar.gz | |
gcc-6.3: Backport patch to fix ICE on ARM
Fixes
internal compiler error: Max. number of generated reload insns per insn is achieved (90)
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit d2631f45a057c53797b7ba657662f35f66a2b04e)
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc-6.3.inc | 1 | ||||
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc-6.3/0056-LRA-PR70904-relax-the-restriction-on-subreg-reload-f.patch | 51 |
2 files changed, 52 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-6.3.inc b/meta/recipes-devtools/gcc/gcc-6.3.inc index d74f12c466..0d98be3861 100644 --- a/meta/recipes-devtools/gcc/gcc-6.3.inc +++ b/meta/recipes-devtools/gcc/gcc-6.3.inc @@ -81,6 +81,7 @@ SRC_URI = "\ file://0048-sync-gcc-stddef.h-with-musl.patch \ file://0054_all_nopie-all-flags.patch \ file://0055-unwind_h-glibc26.patch \ + file://0056-LRA-PR70904-relax-the-restriction-on-subreg-reload-f.patch \ ${BACKPORTS} \ " BACKPORTS = "\ diff --git a/meta/recipes-devtools/gcc/gcc-6.3/0056-LRA-PR70904-relax-the-restriction-on-subreg-reload-f.patch b/meta/recipes-devtools/gcc/gcc-6.3/0056-LRA-PR70904-relax-the-restriction-on-subreg-reload-f.patch new file mode 100644 index 0000000000..231f147619 --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc-6.3/0056-LRA-PR70904-relax-the-restriction-on-subreg-reload-f.patch @@ -0,0 +1,51 @@ +From a582b0a53d1dc8604a201348b99ca8de48784e7e Mon Sep 17 00:00:00 2001 +From: jiwang <jiwang@138bc75d-0d04-0410-961f-82ee72b054a4> +Date: Thu, 12 May 2016 17:00:52 +0000 +Subject: [PATCH] [LRA] PR70904, relax the restriction on subreg reload for + wide mode + +2016-05-12 Jiong Wang <jiong.wang@arm.com> + +gcc/ + PR rtl-optimization/70904 + * lra-constraint.c (process_addr_reg): Relax the restriction on + subreg reload for wide mode. + +git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@236181 138bc75d-0d04-0410-961f-82ee72b054a4 +--- +Upstream-Status: Backport +Signed-off-by: Khem Raj <raj.khem@gmail.com> + + gcc/lra-constraints.c | 16 +++++++++++++++- + 1 file changed, 15 insertions(+), 1 deletion(-) + +diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c +index f96fd458e23..73fb72a2ea5 100644 +--- a/gcc/lra-constraints.c ++++ b/gcc/lra-constraints.c +@@ -1326,7 +1326,21 @@ process_addr_reg (rtx *loc, bool check_only_p, rtx_insn **before, rtx_insn **aft + + subreg_p = GET_CODE (*loc) == SUBREG; + if (subreg_p) +- loc = &SUBREG_REG (*loc); ++ { ++ reg = SUBREG_REG (*loc); ++ mode = GET_MODE (reg); ++ ++ /* For mode with size bigger than ptr_mode, there unlikely to be "mov" ++ between two registers with different classes, but there normally will ++ be "mov" which transfers element of vector register into the general ++ register, and this normally will be a subreg which should be reloaded ++ as a whole. This is particularly likely to be triggered when ++ -fno-split-wide-types specified. */ ++ if (in_class_p (reg, cl, &new_class) ++ || GET_MODE_SIZE (mode) <= GET_MODE_SIZE (ptr_mode)) ++ loc = &SUBREG_REG (*loc); ++ } ++ + reg = *loc; + mode = GET_MODE (reg); + if (! REG_P (reg)) +-- +2.14.2 + |