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| author | Claudiu Zissulescu <claziss@synopsys.com> | 2018-01-08 11:49:01 +0100 |
|---|---|---|
| committer | Claudiu Zissulescu <claziss@gcc.gnu.org> | 2018-01-08 11:49:01 +0100 |
| commit | 85e5629fd5aeefb3e3dac4bcfa51b1206d17354a (patch) | |
| tree | 14ce0aafb07cf56a958b76cde5b5e1b2d4d433ce /gcc | |
| parent | b5da8f948389dfccfedd5b385175e258fd28a777 (diff) | |
| download | gcc-85e5629fd5aeefb3e3dac4bcfa51b1206d17354a.zip gcc-85e5629fd5aeefb3e3dac4bcfa51b1206d17354a.tar.gz gcc-85e5629fd5aeefb3e3dac4bcfa51b1206d17354a.tar.bz2 | |
[ARC] Enable unaligned access.
Use munaligned-access to control if we can have unaligned accesses. For ARC
HS family unaligned access is always on.
2018-01-08 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc-c.def (__ARC_UNALIGNED__): New define.
* config/arc/arc.h (STRICT_ALIGNMENT): Control this macro using
munaligned-access.
From-SVN: r256333
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/arc/arc-c.def | 1 | ||||
| -rw-r--r-- | gcc/config/arc/arc.h | 2 |
3 files changed, 8 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index bcbb551..75bf6b8 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2018-01-08 Claudiu Zissulescu <claziss@synopsys.com> + + * config/arc/arc-c.def (__ARC_UNALIGNED__): New define. + * config/arc/arc.h (STRICT_ALIGNMENT): Control this macro using + munaligned-access. + 2018-01-08 Sebastian Huber <sebastian.huber@embedded-brains.de> PR target/83681 diff --git a/gcc/config/arc/arc-c.def b/gcc/config/arc/arc-c.def index bb7ba4a..aefaeb4 100644 --- a/gcc/config/arc/arc-c.def +++ b/gcc/config/arc/arc-c.def @@ -28,6 +28,7 @@ ARC_C_DEF ("__ARC_NORM__", TARGET_NORM) ARC_C_DEF ("__ARC_MUL64__", TARGET_MUL64_SET) ARC_C_DEF ("__ARC_MUL32BY16__", TARGET_MULMAC_32BY16_SET) ARC_C_DEF ("__ARC_SIMD__", TARGET_SIMD_SET) +ARC_C_DEF ("__ARC_UNALIGNED__", !STRICT_ALIGNMENT) ARC_C_DEF ("__ARC_BARREL_SHIFTER__", TARGET_BARREL_SHIFTER) diff --git a/gcc/config/arc/arc.h b/gcc/config/arc/arc.h index a04a3e9..ae3d9c1 100644 --- a/gcc/config/arc/arc.h +++ b/gcc/config/arc/arc.h @@ -288,7 +288,7 @@ if (GET_MODE_CLASS (MODE) == MODE_INT \ /* On the ARC the lower address bits are masked to 0 as necessary. The chip won't croak when given an unaligned address, but the insn will still fail to produce the correct result. */ -#define STRICT_ALIGNMENT 1 +#define STRICT_ALIGNMENT (!unaligned_access && !TARGET_HS) /* Layout of source language data types. */ |