Hello!
Several otherwise harmless "may be used uninitialized" warnings break
LTO profiled bootstrap. Attached patch fixes all these places,
enabling profiled LTO bootstrap to continue.
2012-07-04 Uros Bizjak <ubiz...@gmail.com>
* expmed.c (expand_mult): Initialize coeff and is_neg.
java/ChangeLog:
2012-07-04 Uros Bizjak <ubiz...@gmail.com>
* jcf-io.c (read_zip_member): Zero d_stream.
fortran/ChangLog:
2012-07-04 Uros Bizjak <ubiz...@gmail.com>
* parse.c (gfc_parse_file): Initialize errors_before.
Bootstrapped and regression tested on x86_64-pc-linux-gnu with LTO
profiledbootstrap, with additional PR 53321 and PR 53433 patches.
If there are no objections, I plan to commit the patch to mainline SVN tomorrow.
Uros.
Index: gcc/java/jcf-io.c
===================================================================
--- gcc/java/jcf-io.c (revision 189217)
+++ gcc/java/jcf-io.c (working copy)
@@ -202,9 +202,7 @@ read_zip_member (JCF *jcf, ZipDirectory *zipd, Zi
{
char *buffer;
z_stream d_stream; /* decompression stream */
- d_stream.zalloc = (alloc_func) 0;
- d_stream.zfree = (free_func) 0;
- d_stream.opaque = (voidpf) 0;
+ memset (&d_stream, 0, sizeof (d_stream));
jcf->buffer = XNEWVEC (unsigned char, zipd->uncompressed_size);
d_stream.next_out = jcf->buffer;
Index: gcc/fortran/parse.c
===================================================================
--- gcc/fortran/parse.c (revision 189217)
+++ gcc/fortran/parse.c (working copy)
@@ -4512,6 +4512,7 @@ gfc_parse_file (void)
gfc_global_ns_list = next = NULL;
seen_program = 0;
+ errors_before = 0;
/* Exit early for empty files. */
if (gfc_at_eof ())
Index: gcc/expmed.c
===================================================================
--- gcc/expmed.c (revision 189217)
+++ gcc/expmed.c (working copy)
@@ -3138,8 +3138,8 @@ expand_mult (enum machine_mode mode, rtx op0, rtx
if (INTEGRAL_MODE_P (mode))
{
rtx fake_reg;
- HOST_WIDE_INT coeff;
- bool is_neg;
+ HOST_WIDE_INT coeff = 0;
+ bool is_neg = false;
int mode_bitsize;
if (op1 == CONST0_RTX (mode))
