crosstool-ng/packages/gcc/6.4.0/975-crystax.patch
Alexey Neyman d7b1296b16 Update to GCC 6.4
Deleted patches have been picked up upstream.

Signed-off-by: Alexey Neyman <stilor@att.net>
2017-07-13 10:38:44 -07:00

32 lines
1.4 KiB
Diff

commit 8a66d422721ae5999737d7825701ff22097d287b
Author: Andrew Hsieh <andrewhsieh@google.com>
Date: Mon Apr 14 21:05:51 2014 -0700
[android] Fix ARM generates insufficient alignment for NEON vst/vld
See d909af3e2469aad87d5c3e79b93c778fd26c03a9
Change-Id: Ie1de9f946f397196bb6f1623f5add86933739484
Signed-off-by: Dmitry Moskalchuk <dm@crystax.net>
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 5974c65d3..71b2c7aa9 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -22403,9 +22403,13 @@ arm_print_operand (FILE *stream, rtx x, int code)
memsize = MEM_SIZE (x);
/* Only certain alignment specifiers are supported by the hardware. */
- if (memsize == 32 && (align % 32) == 0)
+ /* Note that ARM EABI only guarentees 8-byte stack alignment. While GCC
+ honors stricter alignment of composite type in user code, it doesn't
+ observe the alignment of memory passed as an extra argument for function
+ returning large composite type. See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57271 */
+ if (memsize == 32 && (align % 32) == 0 && !TARGET_AAPCS_BASED)
align_bits = 256;
- else if ((memsize == 16 || memsize == 32) && (align % 16) == 0)
+ else if ((memsize == 16 || memsize == 32) && (align % 16) == 0 && !TARGET_AAPCS_BASED)
align_bits = 128;
else if (memsize >= 8 && (align % 8) == 0)
align_bits = 64;