lower-bitint: Add debugging dump of SSA_NAME -> decl mappings

While the SSA coalescing performed by lower bitint prints some information
if -fdump-tree-bitintlower-details, it is really hard to read and doesn't
contain the most important information which one looks for when debugging
bitint lowering issues, namely what VAR_DECLs (or PARM_DECLs/RESULT_DECLs)
each SSA_NAME in large_huge.m_names bitmap maps to.

So, the following patch adds dumping of that, so that we know that say
_3 -> bitint.3
_8 -> bitint.7
_16 -> bitint.7
etc.

2024-01-27  Jakub Jelinek  <jakub@redhat.com>

	* gimple-lower-bitint.cc (gimple_lower_bitint): For
	TDF_DETAILS dump mapping of SSA_NAMEs to decls.

0 files changed, 0 insertions, 0 deletions