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| author | Ulrich Weigand <uweigand@de.ibm.com> | 2014-12-03 21:59:10 +0000 |
|---|---|---|
| committer | Ulrich Weigand <uweigand@gcc.gnu.org> | 2014-12-03 21:59:10 +0000 |
| commit | bc04abff10076fe8ce25fa765032b1cbfa0324e3 (patch) | |
| tree | f081b6847a0e9377b7ccb1828811368648fc35ee | |
| parent | 380abb42063f56b3a38a787b7d14bb67bcce20b7 (diff) | |
| download | gcc-bc04abff10076fe8ce25fa765032b1cbfa0324e3.zip gcc-bc04abff10076fe8ce25fa765032b1cbfa0324e3.tar.gz gcc-bc04abff10076fe8ce25fa765032b1cbfa0324e3.tar.bz2 | |
re PR rtl-optimization/64010 ([msp430-elf] struct function dereference clobbers parameter passed to function)
PR rtl-optimization/64010
* reload.c (push_reload): Before reusing a register contained
in an operand as input reload register, ensure that it is not
used in CALL_INSN_FUNCTION_USAGE.
From-SVN: r218335
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/reload.c | 1 |
2 files changed, 8 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index fabd390..0fac9a2 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2014-12-03 Ulrich Weigand <Ulrich.Weigand@de.ibm.com> + + PR rtl-optimization/64010 + * reload.c (push_reload): Before reusing a register contained + in an operand as input reload register, ensure that it is not + used in CALL_INSN_FUNCTION_USAGE. + 2014-12-03 Ulrich Drepper <drepper@gmail.com> * Makefile.in: Use $(LN_S) instead of $(LN) -s and remove file first diff --git a/gcc/reload.c b/gcc/reload.c index 9ef2c89..3f5abb8 100644 --- a/gcc/reload.c +++ b/gcc/reload.c @@ -1625,6 +1625,7 @@ push_reload (rtx in, rtx out, rtx *inloc, rtx *outloc, end_hard_regno (rel_mode, regno), PATTERN (this_insn), inloc) + && ! find_reg_fusage (this_insn, USE, XEXP (note, 0)) /* If this is also an output reload, IN cannot be used as the reload register if it is set in this insn unless IN is also OUT. */ |