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commit f1c408e514f45a0dcfd81e86991f90a253d18bbf
Author: liuhongt <hongtao....@intel.com>
Date: Wed Jul 31 10:24:33 2024 +0800
[x86] Mention _Float16 and __bf16 changes in GCC14.
diff --git a/htdocs/gcc-14/changes.html b/htdocs/gcc-14/changes.html
index ca4cae0f..b023a4b9 100644
--- a/htdocs/gcc-14/changes.html
+++ b/htdocs/gcc-14/changes.html
@@ -982,6 +982,13 @@ __asm (".global __flmap_lock" "\n\t"
AVX512VP2INTERSECT, AVXVNNI, MOVDIR64B, MOVDIRI, and PREFETCHI ISA
extensions.
</li>
+ <li> The <code>_Float16</code> and <code>__bf16</code> type are supported
+ independent of SSE2. W/o SSE2, these types are storage-only, compiler will
+ issue an error when they're used in conversion, unary operation,
+ binary operation, parameter passing or value return. Please use
+ <code>__SSE2__</code> to detect arithmetic support of these types
+ instead of <code>__FLT16_MAX__</code>(or other similar Macros).
+ </li>
</ul>
<h3 id="mcore">MCore</h3>
diff --git a/htdocs/gcc-14/porting_to.html b/htdocs/gcc-14/porting_to.html
index 3de15d02..2d8eaf3a 100644
--- a/htdocs/gcc-14/porting_to.html
+++ b/htdocs/gcc-14/porting_to.html
@@ -554,6 +554,13 @@ incorrect instruction set by GCC 14.
<p>The fix in this case is to remember whether <code>pop_options</code>
needs to be performed in a new user-defined macro.</p>
+<h3 id="x86_fp16_bf16">Type _Float16 and __bf16 are supported independent of
SSE2 for IA-32/x86-64</h3>
+<p>W/o SSE2, these types are storage-only, compiler will issue an error when
+ they're used in conversion, unary operation, binary operation, parameter
+ passing or value return. Please use <code>__SSE2__</code> to detect
+ arithmetic support of these types instead of
+ <code>__FLT16_MAX__</code>(or other similar Macros).</p>
+
<!-- <h2 id="fortran">Fortran language issues</h2> -->
</body>
-----------------------------------------------------------------------
Summary of changes:
htdocs/gcc-14/changes.html | 7 +++++++
htdocs/gcc-14/porting_to.html | 7 +++++++
2 files changed, 14 insertions(+)
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