sync with Debian

version: 14.3.0-7 (UNRELEASED)
commit: 39ea76304d57617bd92674237f1fc91c5c12ccd5

debian/patches/git-doc-updates.diff

@@ -1,7 +1,7 @@
-# DP: updates from the 14 branch upto 20250810 (documentation).
+# DP: updates from the 14 branch upto 20250829 (documentation).
 
 LANG=C git diff --no-renames --src-prefix=a/src/ --dst-prefix=b/src/ \
-	c9cd41fba9ebd288c4f101e4b99da934bcb96a11 959349ffd61a27c7d881374b682389a8d9d78a9d \
+	c9cd41fba9ebd288c4f101e4b99da934bcb96a11 591d04b6db957715fd88e9ebf5be4d96a5bc2caa \
 	| awk '/^diff .*\.texi/ {skip=0; print; next} /^diff / {skip=1; next} skip==0' \
         | grep -v -E '^(diff|index)'
 
@@ -93,3 +93,15 @@ LANG=C git diff --no-renames --src-prefix=a/src/ --dst-prefix=b/src/ \
  
  @item knl
  Intel Knights Landing CPU with 64-bit extensions, MOVBE, MMX, SSE, SSE2, SSE3,
+--- a/src/gcc/doc/sourcebuild.texi
++++ b/src/gcc/doc/sourcebuild.texi
+@@ -2346,6 +2346,9 @@ whether it does so by default).
+ @itemx aarch64_sve1024_hw
+ @itemx aarch64_sve2048_hw
+ Like @code{aarch64_sve_hw}, but also test for an exact hardware vector length.
++@item aarch64_sme_hw
++AArch64 target that is able to generate and execute SME code (regardless of
++whether it does so by default).
+ 
+ @item aarch64_fjcvtzs_hw
+ AArch64 target that is able to generate and execute armv8.3-a FJCVTZS