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| author | amylaar <amylaar@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-08-30 14:20:29 +0000 |
|---|---|---|
| committer | amylaar <amylaar@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-08-30 14:20:29 +0000 |
| commit | d25c779e19b9c6d4f96ba4d6b0611b60d0ea0719 (patch) | |
| tree | 16a9f77dfa88a4e960235838eb97546b981db960 /gcc/recog.c | |
| parent | 485c79efee51e716fd14c0603d96fbc5775018ad (diff) | |
| download | gcc-d25c779e19b9c6d4f96ba4d6b0611b60d0ea0719.tar.gz | |
* recog.c (verify_changes): Verify that changes[i].old is non-zero
before applying REG_P.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@202107 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/recog.c')
| -rw-r--r-- | gcc/recog.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/recog.c b/gcc/recog.c index 2d44416892e..690b20e4751 100644 --- a/gcc/recog.c +++ b/gcc/recog.c @@ -397,7 +397,10 @@ verify_changes (int num) MEM_ADDR_SPACE (object))) break; } - else if (REG_P (changes[i].old) + else if (/* changes[i].old might be zero, e.g. when putting a + REG_FRAME_RELATED_EXPR into a previously empty list. */ + changes[i].old + && REG_P (changes[i].old) && asm_noperands (PATTERN (object)) > 0 && REG_EXPR (changes[i].old) != NULL_TREE && DECL_ASSEMBLER_NAME_SET_P (REG_EXPR (changes[i].old)) |