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re PR other/58712 (issues found by --enable-checking=valgrind) 

PR other/58712
	* read-rtl.c (read_rtx_code): Clear all of RTX_CODE_SIZE (code).
	For REGs set ORIGINAL_REGNO.

From-SVN: r207230
This commit is contained in:
Jakub Jelinek 2014-01-29 11:35:15 +01:00 committed by Jakub Jelinek
parent 4a271b7ef0
commit 42eb8bd179
2 changed files with 9 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2014-01-29 Jakub Jelinek <jakub@redhat.com>
PR other/58712
* read-rtl.c (read_rtx_code): Clear all of RTX_CODE_SIZE (code).
For REGs set ORIGINAL_REGNO.
2014-01-29 Bingfeng Mei <bmei@broadcom.com>
* doc/md.texi: Mention that a target shouldn't implement

3
gcc/read-rtl.c
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@ -1131,6 +1131,7 @@ read_rtx_code (const char *code_name)
/* If we end up with an insn expression then we free this space below. */
return_rtx = rtx_alloc (code);
format_ptr = GET_RTX_FORMAT (code);
memset (return_rtx, 0, RTX_CODE_SIZE (code));
PUT_CODE (return_rtx, code);
if (iterator)
@ -1154,6 +1155,8 @@ read_rtx_code (const char *code_name)
/* 0 means a field for internal use only.
Don't expect it to be present in the input. */
case '0':
if (code == REG)
ORIGINAL_REGNO (return_rtx) = REGNO (return_rtx);
break;
case 'e':