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| author | Felix Fietkau <nbd@openwrt.org> | 2014-05-06 11:49:05 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2014-05-06 11:49:05 +0000 |
| commit | 409ed30ab00521cca78033b33086062fd2e03700 (patch) | |
| tree | 9820d999230a26cef64df9b4089398d111d31d17 | |
| parent | 604c39ac26643736248c8c17cfd8c7137f3196cd (diff) | |
| download | master-187ad058-409ed30ab00521cca78033b33086062fd2e03700.tar.gz master-187ad058-409ed30ab00521cca78033b33086062fd2e03700.tar.bz2 master-187ad058-409ed30ab00521cca78033b33086062fd2e03700.zip | |
gcc: revert an upstream patch that is causing a regression on powerpc
https://forum.openwrt.org/viewtopic.php?pid=232494#p232494
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40709 3c298f89-4303-0410-b956-a3cf2f4a3e73
| -rw-r--r-- | toolchain/gcc/patches/4.8-linaro/001-revert_register_mode_search.patch | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/toolchain/gcc/patches/4.8-linaro/001-revert_register_mode_search.patch b/toolchain/gcc/patches/4.8-linaro/001-revert_register_mode_search.patch new file mode 100644 index 0000000000..162d651394 --- /dev/null +++ b/toolchain/gcc/patches/4.8-linaro/001-revert_register_mode_search.patch @@ -0,0 +1,65 @@ +Revert of: + +commit 275035b56823b26d5fb7e90fad945b998648edf2 +Author: bergner <bergner@138bc75d-0d04-0410-961f-82ee72b054a4> +Date: Thu Sep 5 14:09:07 2013 +0000 + + PR target/58139 + * reginfo.c (choose_hard_reg_mode): Scan through all mode classes + looking for widest mode. + + + git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@202286 138bc75d-0d04-0410-961f-82ee72b054a4 + + +--- a/gcc/reginfo.c ++++ b/gcc/reginfo.c +@@ -620,35 +620,40 @@ choose_hard_reg_mode (unsigned int regno + mode = GET_MODE_WIDER_MODE (mode)) + if ((unsigned) hard_regno_nregs[regno][mode] == nregs + && HARD_REGNO_MODE_OK (regno, mode) +- && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)) +- && GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode)) ++ && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))) + found_mode = mode; + ++ if (found_mode != VOIDmode) ++ return found_mode; ++ + for (mode = GET_CLASS_NARROWEST_MODE (MODE_FLOAT); + mode != VOIDmode; + mode = GET_MODE_WIDER_MODE (mode)) + if ((unsigned) hard_regno_nregs[regno][mode] == nregs + && HARD_REGNO_MODE_OK (regno, mode) +- && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)) +- && GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode)) ++ && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))) + found_mode = mode; + ++ if (found_mode != VOIDmode) ++ return found_mode; ++ + for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_FLOAT); + mode != VOIDmode; + mode = GET_MODE_WIDER_MODE (mode)) + if ((unsigned) hard_regno_nregs[regno][mode] == nregs + && HARD_REGNO_MODE_OK (regno, mode) +- && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)) +- && GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode)) ++ && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))) + found_mode = mode; + ++ if (found_mode != VOIDmode) ++ return found_mode; ++ + for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_INT); + mode != VOIDmode; + mode = GET_MODE_WIDER_MODE (mode)) + if ((unsigned) hard_regno_nregs[regno][mode] == nregs + && HARD_REGNO_MODE_OK (regno, mode) +- && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)) +- && GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode)) ++ && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))) + found_mode = mode; + + if (found_mode != VOIDmode) |