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| author | Richard Kenner <kenner@gcc.gnu.org> | 1994-03-25 19:53:32 -0500 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1994-03-25 19:53:32 -0500 |
| commit | 682ba3a67b9c3d36ac4603fc3ad1dd10ea024974 (patch) | |
| tree | 06a190130eee4344757e198cc42d63ffd08de659 | |
| parent | 2b9791d49ffd6d5ac6de0cb63e462c8f8a60b4d9 (diff) | |
| download | gcc-682ba3a67b9c3d36ac4603fc3ad1dd10ea024974.zip gcc-682ba3a67b9c3d36ac4603fc3ad1dd10ea024974.tar.gz gcc-682ba3a67b9c3d36ac4603fc3ad1dd10ea024974.tar.bz2 | |
(expand_expr, case ADDR_EXPR): Return const0_rtx if taking address of
an ERROR_MARK; also do some minor cleanup.
From-SVN: r6908
| -rw-r--r-- | gcc/expr.c | 13 |
1 files changed, 7 insertions, 6 deletions
@@ -5790,6 +5790,10 @@ expand_expr (exp, target, tmode, modifier) op0 = trampoline_address (TREE_OPERAND (exp, 0)); op0 = force_operand (op0, target); } + /* If we are taking the address of something erroneous, just + return a zero. */ + else if (TREE_CODE (TREE_OPERAND (exp, 0)) == ERROR_MARK) + return const0_rtx; else { /* We make sure to pass const0_rtx down if we came in with @@ -5801,7 +5805,7 @@ expand_expr (exp, target, tmode, modifier) /* We would like the object in memory. If it is a constant, we can have it be statically allocated into memory. For - a non-constant (REG or SUBREG), we need to allocate some + a non-constant (REG, SUBREG or CONCAT), we need to allocate some memory and store the value into it. */ if (CONSTANT_P (op0)) @@ -5810,11 +5814,8 @@ expand_expr (exp, target, tmode, modifier) else if (GET_CODE (op0) == MEM) temp = XEXP (op0, 0); - /* These cases happen in Fortran. Is that legitimate? - Should Fortran work in another way? - Do they happen in C? */ - if (GET_CODE (op0) == REG || GET_CODE (op0) == SUBREG - || GET_CODE (op0) == CONCAT) + else if (GET_CODE (op0) == REG || GET_CODE (op0) == SUBREG + || GET_CODE (op0) == CONCAT) { /* If this object is in a register, it must be not be BLKmode. */ |