5 Commits

Author	SHA1	Message	Date
Dan Gohman	fb4193625a	Delete useless trailing semicolons. ... llvm-svn: 92740	2010-01-05 17:55:26 +00:00
Dan Gohman	40503396da	Eliminate more uses of llvm-as and llvm-dis. ... llvm-svn: 81290	2009-09-08 23:54:48 +00:00
Chris Lattner	4147f08e44	Move 3 "(add (select cc, 0, c), x) -> (select cc, x, (add, x, c))" ... related transformations out of target-specific dag combine into the ARM backend. These were added by Evan in r37685 with no testcases and only seems to help ARM (e.g. test/CodeGen/ARM/select_xform.ll). Add some simple X86-specific (for now) DAG combines that turn things like cond ? 8 : 0 -> (zext(cond) << 3). This happens frequently with the recently added cp constant select optimization, but is a very general xform. For example, we now compile the second example in const-select.ll to: _test: movsd LCPI2_0, %xmm0 ucomisd 8(%esp), %xmm0 seta %al movzbl %al, %eax movl 4(%esp), %ecx movsbl (%ecx,%eax,4), %eax ret instead of: _test: movl 4(%esp), %eax leal 4(%eax), %ecx movsd LCPI2_0, %xmm0 ucomisd 8(%esp), %xmm0 cmovbe %eax, %ecx movsbl (%ecx), %eax ret This passes multisource and dejagnu. llvm-svn: 66779	2009-03-12 06:52:53 +00:00
Chris Lattner	1d5cf4bcdd	add nounwinds ... llvm-svn: 66773	2009-03-12 05:35:33 +00:00
Dan Gohman	272e234477	Fix mul expansion to check the correct number of bits for ... zero extension when checking if an unsigned multiply is safe. llvm-svn: 48171	2008-03-10 20:42:19 +00:00