4.1.1-27
This commit is contained in:
Jakub Jelinek
parent
324a0ef6a3
commit
64c38ad92b
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gcc-4.1.1-20060926.tar.bz2
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gcc-4.1.1-20060928.tar.bz2
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@ -0,0 +1,74 @@
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2006-09-28 Jakub Jelinek <jakub@redhat.com>
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PR middle-end/29272
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* builtins.c (fold_builtin_memset, fold_builtin_memory_op): Restrict
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single entry optimization to variables and components thereof.
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--- gcc/builtins.c.jj 2006-09-22 10:29:55.000000000 +0200
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+++ gcc/builtins.c 2006-09-28 20:31:30.000000000 +0200
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@@ -7905,7 +7905,7 @@ fold_builtin_exponent (tree fndecl, tree
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static tree
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fold_builtin_memset (tree arglist, tree type, bool ignore)
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{
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- tree dest, c, len, var, ret;
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+ tree dest, c, len, var, ret, inner;
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unsigned HOST_WIDE_INT length, cval;
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if (!validate_arglist (arglist,
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@@ -7939,6 +7939,15 @@ fold_builtin_memset (tree arglist, tree
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&& !POINTER_TYPE_P (TREE_TYPE (var)))
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return 0;
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+ /* If var is a VAR_DECL or a component thereof,
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+ we can use its alias set, otherwise we'd need to make
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+ sure we go through alias set 0. */
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+ inner = var;
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+ while (handled_component_p (inner))
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+ inner = TREE_OPERAND (inner, 0);
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+ if (! SSA_VAR_P (inner))
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+ return 0;
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+
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length = tree_low_cst (len, 1);
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if (GET_MODE_SIZE (TYPE_MODE (TREE_TYPE (var))) != length
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|| get_pointer_alignment (dest, BIGGEST_ALIGNMENT) / BITS_PER_UNIT
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@@ -8009,7 +8018,7 @@ fold_builtin_bzero (tree arglist, bool i
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static tree
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fold_builtin_memory_op (tree arglist, tree type, bool ignore, int endp)
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{
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- tree dest, src, len, destvar, srcvar, expr;
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+ tree dest, src, len, destvar, srcvar, expr, inner;
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unsigned HOST_WIDE_INT length;
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if (! validate_arglist (arglist,
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@@ -8050,6 +8059,15 @@ fold_builtin_memory_op (tree arglist, tr
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&& !SCALAR_FLOAT_TYPE_P (TREE_TYPE (destvar)))
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return 0;
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+ /* If destvar is a VAR_DECL or a component thereof,
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+ we can use its alias set, otherwise we'd need to make
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+ sure we go through alias set 0. */
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+ inner = destvar;
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+ while (handled_component_p (inner))
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+ inner = TREE_OPERAND (inner, 0);
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+ if (! SSA_VAR_P (inner))
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+ return 0;
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+
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srcvar = src;
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STRIP_NOPS (srcvar);
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if (TREE_CODE (srcvar) != ADDR_EXPR)
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@@ -8064,6 +8082,15 @@ fold_builtin_memory_op (tree arglist, tr
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&& !SCALAR_FLOAT_TYPE_P (TREE_TYPE (srcvar)))
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return 0;
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+ /* If srcvar is a VAR_DECL or a component thereof,
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+ we can use its alias set, otherwise we'd need to make
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+ sure we go through alias set 0. */
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+ inner = srcvar;
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+ while (handled_component_p (inner))
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+ inner = TREE_OPERAND (inner, 0);
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+ if (! SSA_VAR_P (inner))
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+ return 0;
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+
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length = tree_low_cst (len, 1);
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if (GET_MODE_SIZE (TYPE_MODE (TREE_TYPE (destvar))) != length
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|| get_pointer_alignment (dest, BIGGEST_ALIGNMENT) / BITS_PER_UNIT
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17
gcc41.spec
17
gcc41.spec
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@ -1,6 +1,6 @@
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%define DATE 20060926
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%define DATE 20060928
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%define gcc_version 4.1.1
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%define gcc_release 26
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%define gcc_release 27
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%define _unpackaged_files_terminate_build 0
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%define multilib_64_archs sparc64 ppc64 s390x x86_64
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%ifarch %{ix86} x86_64 ia64
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@ -132,10 +132,9 @@ Patch23: gcc41-pr28709.patch
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Patch24: gcc41-pr28755.patch
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Patch25: gcc41-pr27898.patch
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Patch26: gcc41-pr27567.patch
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Patch27: gcc41-pr29097.patch
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Patch27: gcc41-pr29272.patch
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Patch28: gcc41-pr29059.patch
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Patch29: gcc41-strncat-chk.patch
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Patch30: gcc41-pr25261.patch
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%define _gnu %{nil}
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%ifarch sparc
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@ -445,10 +444,9 @@ which are required to run programs compiled with the GNAT.
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%patch24 -p0 -b .pr28755~
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%patch25 -p0 -b .pr27898~
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%patch26 -p0 -b .pr27567~
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%patch27 -p0 -b .pr29097~
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%patch27 -p0 -b .pr29272~
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%patch28 -p0 -b .pr29059~
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%patch29 -p0 -b .strncat-chk~
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%patch30 -p0 -b .pr25261~
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sed -i -e 's/4\.1\.2/4.1.1/' gcc/BASE-VER gcc/version.c
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sed -i -e 's/" (Red Hat[^)]*)"/" (Red Hat %{version}-%{gcc_release})"/' gcc/version.c
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@ -1510,6 +1508,13 @@ fi
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%doc rpm.doc/changelogs/libmudflap/ChangeLog*
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%changelog
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* Thu Sep 28 2006 Jakub Jelinek <jakub@redhat.com> 4.1.1-27
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- update from gcc-4_1-branch (-r117225:117266)
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- PR target/29230
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- restrict single entry mem{{,p}cpy,move,set} optimization to vars
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and components thereof (PR middle-end/29272)
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- fix java.util.Locale (Tom Tromey, #201712)
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* Tue Sep 26 2006 Jakub Jelinek <jakub@redhat.com> 4.1.1-26
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- update from gcc-4_1-branch (-r117162:117225)
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- PRs classpath/28661, libgcj/29178, libstdc++/29179, libstdc++/29224
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