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| author | Thomas Koenig <tkoenig@gcc.gnu.org> | 2011-06-11 08:22:35 +0000 |
|---|---|---|
| committer | Thomas Koenig <tkoenig@gcc.gnu.org> | 2011-06-11 08:22:35 +0000 |
| commit | b5ee9d1c0d9955335e7d8a0cf7653f44d0afb2ab (patch) | |
| tree | fde0740af1e7c95d4eb70f492675b55b2699317c /gcc/fortran/frontend-passes.c | |
| parent | 891daafaf87384c823ff5186562e5132f246a9e4 (diff) | |
| download | gcc-b5ee9d1c0d9955335e7d8a0cf7653f44d0afb2ab.zip gcc-b5ee9d1c0d9955335e7d8a0cf7653f44d0afb2ab.tar.gz gcc-b5ee9d1c0d9955335e7d8a0cf7653f44d0afb2ab.tar.bz2 | |
frontend-passes.c (optimize_assignment): Follow chains of concatenation operators to the end for removing trailing TRIMS...
2011-05-11 Thomas Koenig <tkoenig@gcc.gnu.org>
* frontend-passes.c (optimize_assignment): Follow chains
of concatenation operators to the end for removing trailing
TRIMS for assignments.
2011-05-11 Thomas Koenig <tkoenig@gcc.gnu.org>
* gfortran.dg/trim_optimize_7.f90: New test.
From-SVN: r174944
Diffstat (limited to 'gcc/fortran/frontend-passes.c')
| -rw-r--r-- | gcc/fortran/frontend-passes.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/fortran/frontend-passes.c b/gcc/fortran/frontend-passes.c index f100e1f..d1cc229 100644 --- a/gcc/fortran/frontend-passes.c +++ b/gcc/fortran/frontend-passes.c @@ -500,6 +500,14 @@ optimize_assignment (gfc_code * c) if (lhs->ts.type == BT_CHARACTER) { + /* Check for a // b // trim(c). Looping is probably not + necessary because the parser usually generates + (// (// a b ) trim(c) ) , but better safe than sorry. */ + + while (rhs->expr_type == EXPR_OP + && rhs->value.op.op == INTRINSIC_CONCAT) + rhs = rhs->value.op.op2; + if (rhs->expr_type == EXPR_FUNCTION && rhs->value.function.isym && rhs->value.function.isym->id == GFC_ISYM_TRIM) |