diff options
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/simplify-rtx.c | 8 |
2 files changed, 10 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2ce75077b0a..5b08e5de662 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2010-06-25 Alexandre Oliva <aoliva@redhat.com> + + PR debug/44610 + * simplify-rtx.c (delegitimize_mem_from_attrs): Don't use a base + address if the offset is unknown. + 2010-06-25 Douglas B Rupp <rupp@gnat.com> * dwarf2out.c (dwarf2out_vms_debug_main_pointer): New function. diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index be63198e442..3a30e882907 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -208,10 +208,11 @@ avoid_constant_pool_reference (rtx x) rtx delegitimize_mem_from_attrs (rtx x) { + /* MEMs without MEM_OFFSETs may have been offset, so we can't just + use their base addresses as equivalent. */ if (MEM_P (x) && MEM_EXPR (x) - && (!MEM_OFFSET (x) - || GET_CODE (MEM_OFFSET (x)) == CONST_INT)) + && MEM_OFFSET (x)) { tree decl = MEM_EXPR (x); enum machine_mode mode = GET_MODE (x); @@ -264,8 +265,7 @@ delegitimize_mem_from_attrs (rtx x) { rtx newx; - if (MEM_OFFSET (x)) - offset += INTVAL (MEM_OFFSET (x)); + offset += INTVAL (MEM_OFFSET (x)); newx = DECL_RTL (decl); |
