[gcc r15-9309] nvptx: In offloading compilation, special-case certain host-setup symbol aliases: avoid unused label

[Thomas Schwinge]

https://gcc.gnu.org/g:175016de6f9d800343ce31cf1837a3265569b657

commit r15-9309-g175016de6f9d800343ce31cf1837a3265569b657
Author: Thomas Schwinge <tschwinge@baylibre.com>
Date:   Mon Apr 7 12:39:33 2025 +0200

    nvptx: In offloading compilation, special-case certain host-setup symbol aliases: avoid unused label 'emit_ptx_alias' diagnostic
    
    Minor fix-up for commit 65b31b3fff2fced015ded1026733605f34053796
    "nvptx: In offloading compilation, special-case certain host-setup symbol aliases [PR101544]",
    as of which we see for non-offloading configurations:
    
        +[...]/source-gcc/gcc/config/nvptx/nvptx.cc: In function 'void nvptx_asm_output_def_from_decls(FILE*, tree, tree)':
        +[...]/source-gcc/gcc/config/nvptx/nvptx.cc:7769:2: warning: label 'emit_ptx_alias' defined but not used [-Wunused-label]
        + 7769 |  emit_ptx_alias:
        +      |  ^~~~~~~~~~~~~~
    
            gcc/
            * config/nvptx/nvptx.cc (nvptx_asm_output_def_from_decls)
            [!ACCEL_COMPILER]: Don't define label 'emit_ptx_alias'.

Diff:
---
 gcc/config/nvptx/nvptx.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gcc/config/nvptx/nvptx.cc b/gcc/config/nvptx/nvptx.cc
index de0ce5d91645..87364bf423c5 100644
--- a/gcc/config/nvptx/nvptx.cc
+++ b/gcc/config/nvptx/nvptx.cc
@@ -7766,7 +7766,9 @@ nvptx_asm_output_def_from_decls (FILE *stream, tree name,
       return;
     }
 
+#ifdef ACCEL_COMPILER
  emit_ptx_alias:
+#endif
 
   cgraph_node *cnode = cgraph_node::get (name);
   if (!cnode->referred_to_p ())