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| author | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-10-19 11:41:03 +0000 |
|---|---|---|
| committer | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-10-19 11:41:03 +0000 |
| commit | b6ec4d7aba7569f3e7f786a61ed2bb5b33ab9058 (patch) | |
| tree | 0f8b89ec81e9567be632659ca4cffb17746aed01 | |
| parent | d821af01a6b763caaa33411a6db98f1664264a96 (diff) | |
| download | gcc-b6ec4d7aba7569f3e7f786a61ed2bb5b33ab9058.tar.gz | |
Use GET_MODE_BITSIZE to get vector natural alignment
Since GET_MODE_ALIGNMENT is defined by psABI and the biggest alignment
is 4 byte for IA MCU psABI, we should use GET_MODE_BITSIZE for IA MCU
psABI to get vector natural alignment to check misaligned vector move.
* config/i386/i386.c (ix86_expand_vector_move): Use
GET_MODE_BITSIZE for IA MCU psABI to get vector natural
alignment.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@228969 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 6 |
2 files changed, 11 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index db0aea418e4..b04f38ba0ac 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2015-10-19 H.J. Lu <hongjiu.lu@intel.com> + * config/i386/i386.c (ix86_expand_vector_move): Use + GET_MODE_BITSIZE for IA MCU psABI to get vector natural + alignment. + +2015-10-19 H.J. Lu <hongjiu.lu@intel.com> + * doc/invoke.texi: Replace @optindex with @opindex. 2015-10-19 H.J. Lu <hongjiu.lu@intel.com> diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 1049455aa2a..a4f4b6fb8ab 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -18645,7 +18645,11 @@ void ix86_expand_vector_move (machine_mode mode, rtx operands[]) { rtx op0 = operands[0], op1 = operands[1]; - unsigned int align = GET_MODE_ALIGNMENT (mode); + /* Use GET_MODE_BITSIZE instead of GET_MODE_ALIGNMENT for IA MCU + psABI since the biggest alignment is 4 byte for IA MCU psABI. */ + unsigned int align = (TARGET_IAMCU + ? GET_MODE_BITSIZE (mode) + : GET_MODE_ALIGNMENT (mode)); if (push_operand (op0, VOIDmode)) op0 = emit_move_resolve_push (mode, op0); |