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| author | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-12-11 19:04:07 +0000 |
|---|---|---|
| committer | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-12-11 19:04:07 +0000 |
| commit | 75e0dc776ece5701357ded35ee2ae7c0cb37a01f (patch) | |
| tree | 10bc58864ba022fa4eec97364c57606ab6d548a4 /gcc/function.c | |
| parent | 723bead6da199c0d0263b70e2923bd7fadec3fc3 (diff) | |
| download | ppe42-gcc-75e0dc776ece5701357ded35ee2ae7c0cb37a01f.tar.gz ppe42-gcc-75e0dc776ece5701357ded35ee2ae7c0cb37a01f.zip | |
Fix for problem with unnecessary volatile mems.
PR target/13132
* function.c (gen_mem_addressof): When no decl, explicitly clear flag
bits.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@74543 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/function.c')
| -rw-r--r-- | gcc/function.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/gcc/function.c b/gcc/function.c index 2f6fb9bd143..7ae19d50efa 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -2868,7 +2868,17 @@ gen_mem_addressof (rtx reg, tree decl, int rescan) fixup_var_refs (reg, GET_MODE (reg), TREE_UNSIGNED (type), reg, 0); } else if (rescan) - fixup_var_refs (reg, GET_MODE (reg), 0, reg, 0); + { + /* This can only happen during reload. Clear the same flag bits as + reload. */ + MEM_VOLATILE_P (reg) = 0; + RTX_UNCHANGING_P (reg) = 0; + MEM_IN_STRUCT_P (reg) = 0; + MEM_SCALAR_P (reg) = 0; + MEM_ATTRS (reg) = 0; + + fixup_var_refs (reg, GET_MODE (reg), 0, reg, 0); + } return reg; } |
