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| author | Steve Ellcey <Steve.Ellcey@imgtec.com> | 2015-06-02 09:20:30 -0700 |
|---|---|---|
| committer | Steve Ellcey <Steve.Ellcey@imgtec.com> | 2015-06-02 09:20:30 -0700 |
| commit | 00eea35e8107e50c4a5f569385646ae09f4e47fc (patch) | |
| tree | ebbc697c70742593d43ad28c1beed12bc1adab30 /gcc-4.9/gcc | |
| parent | 4db4241dd512cf274d07b301215c715abfd9559f (diff) | |
| download | toolchain_gcc-00eea35e8107e50c4a5f569385646ae09f4e47fc.tar.gz toolchain_gcc-00eea35e8107e50c4a5f569385646ae09f4e47fc.tar.bz2 toolchain_gcc-00eea35e8107e50c4a5f569385646ae09f4e47fc.zip | |
Fix bug where force_const_mem may return NULL_RTX.
Change-Id: I54a6469aa140e7b24853237ac51398f8e8f4ea95
Diffstat (limited to 'gcc-4.9/gcc')
| -rw-r--r-- | gcc-4.9/gcc/explow.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc-4.9/gcc/explow.c b/gcc-4.9/gcc/explow.c index 48e91a644..4e0aedf6b 100644 --- a/gcc-4.9/gcc/explow.c +++ b/gcc-4.9/gcc/explow.c @@ -137,7 +137,9 @@ plus_constant (enum machine_mode mode, rtx x, HOST_WIDE_INT c) { tem = plus_constant (mode, get_pool_constant (XEXP (x, 0)), c); tem = force_const_mem (GET_MODE (x), tem); - if (memory_address_p (GET_MODE (tem), XEXP (tem, 0))) + /* Targets may disallow some constants in the constant pool, thus + force_const_mem may return NULL_RTX. */ + if (tem && memory_address_p (GET_MODE (tem), XEXP (tem, 0))) return tem; } break; |