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| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-09-26 07:42:32 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-09-26 07:42:32 +0000 |
| commit | 695356195e0fbe74fe8806df28352444dd52597f (patch) | |
| tree | 8e0e32825c96450c054224193f16fcb08eb615a4 | |
| parent | f86cb0d4d76a77ec1261f9d61d353313cb21e122 (diff) | |
| download | gcc-695356195e0fbe74fe8806df28352444dd52597f.tar.gz | |
[PATCH] Fix undefined behaviour in SH port
* config/sh/sh.h (CONST_OK_FOR_J16): Fix left shift undefined
behaviour
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@228165 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/config/sh/sh.h | 2 |
2 files changed, 4 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6887b14fde3..28c6bf7fcc9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,8 @@ 2015-09-26 Jeff Law <law@redhat.com> + * config/sh/sh.h (CONST_OK_FOR_J16): Fix left shift undefined + behaviour + * config/mips/mips.c (mips_compute_frame_info): Fix left shift undefined behaviour. diff --git a/gcc/config/sh/sh.h b/gcc/config/sh/sh.h index 7aa489d6dc0..b18cc1fedc1 100644 --- a/gcc/config/sh/sh.h +++ b/gcc/config/sh/sh.h @@ -1176,7 +1176,7 @@ extern enum reg_class regno_reg_class[FIRST_PSEUDO_REGISTER]; #define CONST_OK_FOR_J16(VALUE) \ ((HOST_BITS_PER_WIDE_INT >= 64 && (VALUE) == (HOST_WIDE_INT) 0xffffffff) \ - || (HOST_BITS_PER_WIDE_INT >= 64 && (VALUE) == (HOST_WIDE_INT) -1 << 32)) + || (HOST_BITS_PER_WIDE_INT >= 64 && (VALUE) == (HOST_WIDE_INT) (HOST_WIDE_INT_M1U << 32))) #define CONST_OK_FOR_K08(VALUE) (((HOST_WIDE_INT)(VALUE))>= 0 \ && ((HOST_WIDE_INT)(VALUE)) <= 255) |