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| author | Eric Botcazou <ebotcazou@adacore.com> | 2017-02-02 12:39:09 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2017-02-02 12:39:09 +0000 |
| commit | da75ca93f8f17847f75ff50d00796e98ccf8509d (patch) | |
| tree | 3bf382d8d50f62d0ff60f17c00752dbff7a4af7a /gcc/explow.c | |
| parent | aa2cbb1a6cf59b6bd3215ed2a53cf88ffcda3bc7 (diff) | |
| download | gcc-da75ca93f8f17847f75ff50d00796e98ccf8509d.zip gcc-da75ca93f8f17847f75ff50d00796e98ccf8509d.tar.gz gcc-da75ca93f8f17847f75ff50d00796e98ccf8509d.tar.bz2 | |
re PR middle-end/78468 (libgomp.c/reduction-10.c and many more FAIL)
PR middle-end/78468
* emit-rtl.c (init_emit): Add ??? comment for problematic alignment
settings of the virtual registers.
Revert again
2016-08-23 Dominik Vogt <vogt@linux.vnet.ibm.com>
* explow.c (get_dynamic_stack_size): Take known alignment of stack
pointer + STACK_DYNAMIC_OFFSET into account when calculating the size
needed.
From-SVN: r245124
Diffstat (limited to 'gcc/explow.c')
| -rw-r--r-- | gcc/explow.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/gcc/explow.c b/gcc/explow.c index 4e081fb..67cb6ff 100644 --- a/gcc/explow.c +++ b/gcc/explow.c @@ -1233,15 +1233,9 @@ get_dynamic_stack_size (rtx *psize, unsigned size_align, example), so we must preventively align the value. We leave space in SIZE for the hole that might result from the alignment operation. */ - unsigned known_align = REGNO_POINTER_ALIGN (VIRTUAL_STACK_DYNAMIC_REGNUM); - if (known_align == 0) - known_align = BITS_PER_UNIT; - if (required_align > known_align) - { - extra = (required_align - known_align) / BITS_PER_UNIT; - size = plus_constant (Pmode, size, extra); - size = force_operand (size, NULL_RTX); - } + extra = (required_align - BITS_PER_UNIT) / BITS_PER_UNIT; + size = plus_constant (Pmode, size, extra); + size = force_operand (size, NULL_RTX); if (flag_stack_usage_info && pstack_usage_size) *pstack_usage_size += extra; |