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[Bug target/20020] x86_64 - 128 bit structs not targeted to TImode
- From: "gary at intrepid dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 8 Jul 2011 16:59:54 +0000
- Subject: [Bug target/20020] x86_64 - 128 bit structs not targeted to TImode
- Auto-submitted: auto-generated
- References: <bug-20020-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20020
--- Comment #10 from Gary Funck <gary at intrepid dot com> 2011-07-08 16:58:55 UTC ---
Note: I don't know how this fix fits in with the x86_64 ABI, and obviously once
this fix is in place, the binary call interface will change for 128 bit
struct/union arguments. As noted in the previous reply, expand_call tried
passing the argument (of TImode) in an XFmode (SSE) register. That may or may
not be permitted by the call ABI.