9 Commits

Author	SHA1	Message	Date
Dan Gohman	f113e5466c	In guaranteed tailcall mode, don't decline the tailcall optimization ... for blocks ending in "unreachable". llvm-svn: 95565	2010-02-08 20:34:14 +00:00
Evan Cheng	e273e42195	Revert 94937 and move the noreturn check to codegen. ... llvm-svn: 95198	2010-02-03 03:55:59 +00:00
Evan Cheng	381bc804d6	Perform trivial tail call optimization for callees with "C" ABI. These are done ... even when -tailcallopt is not specified and it does not require changing ABI. First case is the most trivial one. Perform tail call optimization when both the caller and callee do not return values and when the callee does not take any input arguments. llvm-svn: 94664	2010-01-27 06:25:16 +00:00
Dan Gohman	d97f165eb2	Tidy up this testcase and add test for tailcall optimization ... with unreachable. llvm-svn: 91650	2009-12-18 01:05:06 +00:00
Dan Gohman	b36274632d	Enable the tail call optimization when the caller returns undef. ... llvm-svn: 88737	2009-11-14 02:06:30 +00:00
Dan Gohman	01b65e1e48	Don't let a noalias difference disrupt the tailcall optimization. ... llvm-svn: 88672	2009-11-13 18:49:38 +00:00
Dan Gohman	df2896d609	Eliminate more uses of llvm-as and llvm-dis. ... llvm-svn: 81290	2009-09-08 23:54:48 +00:00
Arnold Schwaighofer	f1e49dd41d	Added missing -march=x86 flag. ... llvm-svn: 42893	2007-10-12 07:49:48 +00:00
Arnold Schwaighofer	d47210011e	Added tail call optimization to the x86 back end. It can be ... enabled by passing -tailcallopt to llc. The optimization is performed if the following conditions are satisfied: * caller/callee are fastcc * elf/pic is disabled OR elf/pic enabled + callee is in module + callee has visibility protected or hidden llvm-svn: 42870	2007-10-11 19:40:01 +00:00