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We call the recipes 4.6 Remove the backport patches (From OE-Core rev: 68b545f4ff719f2b6e57d68b002dc9845c7a14ae) Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
29 lines
1.1 KiB
Diff
29 lines
1.1 KiB
Diff
Pulled from http://gcc.gnu.org/ml/gcc-patches/2011-03/msg01477.html
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Upstream-Status: Backport
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Signed-off-by: Saul Wold <sgw@linux.intel.com>
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gcc/
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* expr.c (expand_expr_real_1): Only use BLKmode for volatile
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accesses which are not naturally aligned.
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Index: gcc-4.6.0/gcc/expr.c
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===================================================================
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--- gcc-4.6.0.orig/gcc/expr.c 2011-06-01 15:28:55.000000000 -0700
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+++ gcc-4.6.0/gcc/expr.c 2011-06-01 15:41:17.154848182 -0700
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@@ -9178,8 +9178,11 @@
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&& modifier != EXPAND_CONST_ADDRESS
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&& modifier != EXPAND_INITIALIZER)
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/* If the field is volatile, we always want an aligned
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- access. */
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- || (volatilep && flag_strict_volatile_bitfields > 0)
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+ access. Only do this if the access is not already naturally
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+ aligned, otherwise "normal" (non-bitfield) volatile fields
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+ become non-addressable. */
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+ || (volatilep && flag_strict_volatile_bitfields > 0
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+ && (bitpos % GET_MODE_ALIGNMENT (mode) != 0))
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/* If the field isn't aligned enough to fetch as a memref,
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fetch it as a bit field. */
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|| (mode1 != BLKmode
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