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| author | kenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4> | 1994-03-01 23:33:22 +0000 |
|---|---|---|
| committer | kenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4> | 1994-03-01 23:33:22 +0000 |
| commit | 81d7051e96f93dd60d6018ec2891c077d09e57d3 (patch) | |
| tree | 3cebe1786de1fa19fdfc1350f89f369cb020005c /gcc/varasm.c | |
| parent | 3a5390f6ebf2549d9ff5325b06a16b3a2a7807da (diff) | |
| download | gcc-81d7051e96f93dd60d6018ec2891c077d09e57d3.tar.gz | |
(output_constant): Strip off some NOP_EXPRs before further processing.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@6683 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/varasm.c')
| -rw-r--r-- | gcc/varasm.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/gcc/varasm.c b/gcc/varasm.c index d4576f817fc..89c1bbadc9c 100644 --- a/gcc/varasm.c +++ b/gcc/varasm.c @@ -3323,6 +3323,17 @@ output_constant (exp, size) if (size == 0) return; + /* Eliminate the NON_LVALUE_EXPR_EXPR that makes a cast not be an lvalue. + That way we get the constant (we hope) inside it. Also, strip + off any NOP_EXPR that converts between two record or union types. */ + while ((TREE_CODE (exp) == NOP_EXPR + && (TREE_TYPE (exp) == TREE_TYPE (TREE_OPERAND (exp, 0)) + || TREE_CODE (TREE_TYPE (exp)) == RECORD_TYPE + || TREE_CODE (TREE_TYPE (exp)) == UNION_TYPE + || TREE_CODE (TREE_TYPE (exp)) == QUAL_UNION_TYPE)) + || TREE_CODE (exp) == NON_LVALUE_EXPR) + exp = TREE_OPERAND (exp, 0); + /* Allow a constructor with no elements for any data type. This means to fill the space with zeros. */ if (TREE_CODE (exp) == CONSTRUCTOR && CONSTRUCTOR_ELTS (exp) == 0) @@ -3334,12 +3345,6 @@ output_constant (exp, size) return; } - /* Eliminate the NOP_EXPR that makes a cast not be an lvalue. - That way we get the constant (we hope) inside it. */ - if (TREE_CODE (exp) == NOP_EXPR - && TREE_TYPE (exp) == TREE_TYPE (TREE_OPERAND (exp, 0))) - exp = TREE_OPERAND (exp, 0); - switch (code) { case CHAR_TYPE: |