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| author | Michael Matz <matz@suse.de> | 2007-10-05 15:36:16 +0000 |
|---|---|---|
| committer | Michael Matz <matz@gcc.gnu.org> | 2007-10-05 15:36:16 +0000 |
| commit | 1596d61e6efe75dd6fdf2b23d6028f1431143ccb (patch) | |
| tree | 4d399a9e5d91e9feddce47292268b08a2c55eaea | |
| parent | ca39e6f200109cd52ad6102a6b272cc95f6f9aea (diff) | |
| download | gcc-1596d61e6efe75dd6fdf2b23d6028f1431143ccb.zip gcc-1596d61e6efe75dd6fdf2b23d6028f1431143ccb.tar.gz gcc-1596d61e6efe75dd6fdf2b23d6028f1431143ccb.tar.bz2 | |
re PR inline-asm/33600 (Breakage caused by the fix to PR33552)
gcc/
PR inline-asm/33600
* function.c (match_asm_constraints_1): Check for input
being used in the outputs.
testsuite/
* gcc.target/i386/pr33600.c: New testcase.
From-SVN: r129035
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/function.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr33600.c | 10 |
4 files changed, 22 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 70c369a..8c6c773 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2007-10-05 Michael Matz <matz@suse.de> + + PR inline-asm/33600 + * function.c (match_asm_constraints_1): Check for input + being used in the outputs. + 2007-10-05 Richard Guenther <rguenther@suse.de> * tree-cfg.c (verify_gimple_expr): Accept OBJ_TYPE_REF. diff --git a/gcc/function.c b/gcc/function.c index c373684..d05d1b2 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -5716,7 +5716,7 @@ match_asm_constraints_1 (rtx insn, rtx *p_sets, int noutputs) which wouldn't have happen without this pass. So, iterate over all operands and replace all occurences of the register used. */ for (j = 0; j < noutputs; j++) - if (!rtx_equal_p (SET_DEST (p_sets[j]), output) + if (!rtx_equal_p (SET_DEST (p_sets[j]), input) && reg_overlap_mentioned_p (input, SET_DEST (p_sets[j]))) SET_DEST (p_sets[j]) = replace_rtx (SET_DEST (p_sets[j]), input, output); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index ca33da8..6b06d14 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2007-10-05 Michael Matz <matz@suse.de> + + PR inline-asm/33600 + * gcc.target/i386/pr33600.c: New testcase. + 2007-10-05 Richard Guenther <rguenther@suse.de> * g++.dg/tree-ssa/obj-type-ref.C: New testcase. diff --git a/gcc/testsuite/gcc.target/i386/pr33600.c b/gcc/testsuite/gcc.target/i386/pr33600.c new file mode 100644 index 0000000..a2ab91e --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr33600.c @@ -0,0 +1,10 @@ +/* { dg-do compile } */ +/* { dg-options "-O2" } */ +int f(int n) +{ + int x; + + asm("" : "=&c"(n), "=r"(x) : "1"(n), "0"(n)); + + return n; +} |