3 Commits

Author	SHA1	Message	Date
Dan Gohman	2e99c3afda	[WebAssemby] Re-apply r320041: "Support main functions with alternate signatures." ... This includes a fix so that it doesn't transform declarations, and it puts the functionality under control of a command-line option which is off by default to avoid breaking existing setups. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320196 91177308-0d34-0410-b5e6-96231b3b80d8	2017-12-08 21:18:21 +00:00
Derek Schuff	ed1cb75099	Revert "[WebAssemby] Support main functions with alternate signatures." ... This reverts commit 959e37e669. That commit doesn't handle the case where main is declared rather than defined, in particular the even-more special case where main is a prototypeless declaration (which is of course the one actually used by musl currently). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320121 91177308-0d34-0410-b5e6-96231b3b80d8	2017-12-08 00:39:54 +00:00
Dan Gohman	959e37e669	[WebAssemby] Support main functions with alternate signatures. ... WebAssembly requires caller and callee signatures to match, so the usual C runtime trick of calling main and having it just work regardless of whether main is defined as '()' or '(int argc, char *argv[])' doesn't work. Extend the FixFunctionBitcasts pass to rewrite main to use the latter form. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320041 91177308-0d34-0410-b5e6-96231b3b80d8	2017-12-07 13:49:27 +00:00