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| author | Jing Yu <jingyu@google.com> | 2012-02-15 15:40:16 -0800 |
|---|---|---|
| committer | Jing Yu <jingyu@google.com> | 2012-02-15 15:40:16 -0800 |
| commit | 3f73d6ef90458b45bbbb33ef4c2b174d4662a22d (patch) | |
| tree | 1b5f0d96c51b51168b3713058a1b62e92f1136eb /gcc-4.6/gcc/convert.c | |
| parent | d7030123e04baab5dbff9c9ee04c0de99bd9a774 (diff) | |
| download | toolchain_gcc-3f73d6ef90458b45bbbb33ef4c2b174d4662a22d.tar.gz toolchain_gcc-3f73d6ef90458b45bbbb33ef4c2b174d4662a22d.tar.bz2 toolchain_gcc-3f73d6ef90458b45bbbb33ef4c2b174d4662a22d.zip | |
Sync down FSF r184235@google/gcc-4_6_2-mobile branch
1) Get mostly new patches from FSF gcc-4.6 branch
2) Fix PR52129
3) Insert GNU-stack note for all ARM targets
Change-Id: I2b9926981210e517e4021242908074319a91d6bd
Diffstat (limited to 'gcc-4.6/gcc/convert.c')
| -rw-r--r-- | gcc-4.6/gcc/convert.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc-4.6/gcc/convert.c b/gcc-4.6/gcc/convert.c index 459d5337e..21d09c157 100644 --- a/gcc-4.6/gcc/convert.c +++ b/gcc-4.6/gcc/convert.c @@ -727,6 +727,15 @@ convert_to_integer (tree type, tree expr) tree arg0 = get_unwidened (TREE_OPERAND (expr, 0), type); tree arg1 = get_unwidened (TREE_OPERAND (expr, 1), type); + /* Do not try to narrow operands of pointer subtraction; + that will interfere with other folding. */ + if (ex_form == MINUS_EXPR + && CONVERT_EXPR_P (arg0) + && CONVERT_EXPR_P (arg1) + && POINTER_TYPE_P (TREE_TYPE (TREE_OPERAND (arg0, 0))) + && POINTER_TYPE_P (TREE_TYPE (TREE_OPERAND (arg1, 0)))) + break; + if (outprec >= BITS_PER_WORD || TRULY_NOOP_TRUNCATION (outprec, inprec) || inprec > TYPE_PRECISION (TREE_TYPE (arg0)) |