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[ARC] Fix logic set UNALIGNED_ACCESS

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gcc/
xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc-c.def (__ARC_UNALIGNED__): Set it on
	unaligned_access variable.
	* config/arc/arc.c (arc_override_options): Set unaligned access
	default on for HS CPUs.
	* config/arc/arc.h (STRICT_ALIGNMENT): Fix logic.

From-SVN: r269417
This commit is contained in:
Claudiu Zissulescu 2019-03-06 11:45:51 +01:00 • committed by Claudiu Zissulescu
parent 3050b35766
commit 9f54ba8f7d
4 changed files with 14 additions and 2 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2019-03-06 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc-c.def (__ARC_UNALIGNED__): Set it on
unaligned_access variable.
* config/arc/arc.c (arc_override_options): Set unaligned access
default on for HS CPUs.
* config/arc/arc.h (STRICT_ALIGNMENT): Fix logic.
2019-03-06 Martin Liska <mliska@suse.cz>
PR gcov-profile/89577

2
gcc/config/arc/arc-c.def
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@ -29,7 +29,7 @@ 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_RF16__", TARGET_RF16)
ARC_C_DEF ("__ARC_UNALIGNED__", !STRICT_ALIGNMENT)
ARC_C_DEF ("__ARC_UNALIGNED__", unaligned_access)
ARC_C_DEF ("__ARC_BARREL_SHIFTER__", TARGET_BARREL_SHIFTER)

4
gcc/config/arc/arc.c
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@ -1313,6 +1313,10 @@ arc_override_options (void)
if (TARGET_LONG_CALLS_SET)
target_flags &= ~MASK_MILLICODE_THUNK_SET;
/* Set unaligned to all HS cpus. */
if (!global_options_set.x_unaligned_access && TARGET_HS)
unaligned_access = 1;
/* These need to be done at start up. It's convenient to do them here. */
arc_init ();
}

2
gcc/config/arc/arc.h
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@ -285,7 +285,7 @@ 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 (!unaligned_access && !TARGET_HS)
#define STRICT_ALIGNMENT (!unaligned_access)
/* Layout of source language data types. */