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| author | Eric Botcazou <ebotcazou@adacore.com> | 2005-11-16 07:23:40 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2005-11-16 07:23:40 +0000 |
| commit | 11eef57867ad3aa712e7615568f1c9e0a98f375a (patch) | |
| tree | 5ec86dad6963ce14881bb154a81c0c7ca9af20a9 /gcc | |
| parent | 1e04bfdc8a05b9d5d7428a5ea4973d0722e6cd46 (diff) | |
| download | gcc-11eef57867ad3aa712e7615568f1c9e0a98f375a.zip gcc-11eef57867ad3aa712e7615568f1c9e0a98f375a.tar.gz gcc-11eef57867ad3aa712e7615568f1c9e0a98f375a.tar.bz2 | |
alpha.c (alpha_expand_prologue): Fix off-by-one bug in the stack probing loop.
* config/alpha/alpha.c (alpha_expand_prologue): Fix off-by-one bug
in the stack probing loop.
From-SVN: r107069
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/alpha/alpha.c | 7 |
2 files changed, 8 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9e5cf17..21765a2 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2005-11-16 Eric Botcazou <ebotcazou@adacore.com> + + * config/alpha/alpha.c (alpha_expand_prologue): Fix off-by-one bug + in the stack probing loop. + 2005-11-15 David Edelsohn <edelsohn@gnu.org> * configure.ac: Use .machine power5 not power5x. diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c index ec53778..a14b5d3 100644 --- a/gcc/config/alpha/alpha.c +++ b/gcc/config/alpha/alpha.c @@ -7546,16 +7546,15 @@ alpha_expand_prologue (void) { if (frame_size > 4096) { - int probed = 4096; + int probed; - do + for (probed = 4096; probed < frame_size; probed += 8192) emit_insn (gen_probe_stack (GEN_INT (TARGET_ABI_UNICOSMK ? -probed + 64 : -probed))); - while ((probed += 8192) < frame_size); /* We only have to do this probe if we aren't saving registers. */ - if (sa_size == 0 && probed + 4096 < frame_size) + if (sa_size == 0 && frame_size > probed - 4096) emit_insn (gen_probe_stack (GEN_INT (-frame_size))); } |