[Bug target/105019] [nvptx] malias in libgomp results in "Internal error: reference to deleted section"

[vries at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105019

--- Comment #1 from Tom de Vries <vries at gcc dot gnu.org> ---
To trigger:
...
diff --git a/gcc/config/nvptx/nvptx.cc b/gcc/config/nvptx/nvptx.cc
index 87efc23bd96..8bf9ea90a77 100644
--- a/gcc/config/nvptx/nvptx.cc
+++ b/gcc/config/nvptx/nvptx.cc
@@ -245,6 +245,9 @@ default_ptx_version_option (void)
      warp convergence.  */
   res = MAX (res, PTX_VERSION_6_0);

+  /* Pick at least 6.3, to enable using malias.  */
+  res = MAX (res, PTX_VERSION_6_3);
+
   /* Verify that we pick a version that supports the sm.  */
   gcc_assert (first <= res);
   return res;
diff --git a/gcc/config/nvptx/nvptx.opt b/gcc/config/nvptx/nvptx.opt
index 11288d1a8ee..a4aece80682 100644
--- a/gcc/config/nvptx/nvptx.opt
+++ b/gcc/config/nvptx/nvptx.opt
@@ -87,7 +87,7 @@ mptx-comment
 Target Var(nvptx_comment) Init(1) Undocumented

 malias-
-Target Var(nvptx_alias) Init(0) Undocumented
+Target Var(nvptx_alias) Init(1) Undocumented

 mexperimental
 Target Var(nvptx_experimental) Init(0) Undocumented
...
rebuild gcc, run libgomp tests, and:
...
$ grep -c "Internal error: reference to deleted section" libgomp.log 
637
...

For instance:
...
Execution timeout is: 300
spawn [open ...]^M

libgomp: Link error log fatal   : Internal error: reference to deleted section


libgomp: cuLinkComplete error: unknown error

libgomp: Cannot map target functions or variables (expected 2, have 4294967295)
FAIL: libgomp.c/../libgomp.c-c++-common/declare_target-1.c execution test
...