Change errs() to dbgs().

llvm-svn: 92520

Change errs() to dbgs().

llvm-svn: 92518

Change errs() to dbgs().

llvm-svn: 92516

Change errs() to dbgs().

llvm-svn: 92515

(or (x << c) | (y >> (64 - c))) ==> (shld64 x, y, c)

The isel patterns may not catch all the cases if general dag combine has reduced width of source operands.

llvm-svn: 92513

in an inline asm.

llvm-svn: 92512

llvm-svn: 92511

lets the test-elimination work in more conditional-move cases.

llvm-svn: 92508

rules as normal add, and, or, etc.

llvm-svn: 92507

This lets isel fold loads into them in more cases.

llvm-svn: 92506

llvm-svn: 92505

Change errs() to dbgs().

llvm-svn: 92502

Change errs() to dbgs().

llvm-svn: 92498

Change errs() to dbgs().

llvm-svn: 92496

when doing this transform if the GEP is not inbounds.  No testcase because
it is very difficult to trigger this: instcombine already canonicalizes
GEP indices to pointer size, so it relies specific permutations of the
instcombine worklist.

Thanks to Duncan for pointing this possible problem out.

llvm-svn: 92495

llvm-svn: 92494

llvm-svn: 92492

Change errs() to dbgs().

llvm-svn: 92490

llvm-svn: 92472

llvm-svn: 92471

llvm-svn: 92470

llvm-svn: 92469

file.  InstructionCombining.cpp is now down to a svelte 9300 lines :)

llvm-svn: 92468

a new InstCombineCompares.cpp file.

llvm-svn: 92467

llvm-svn: 92466

move the 'SimplifyDemandedFoo' methods out to their own file, cutting 1K lines out of instcombine.cpp

llvm-svn: 92465

among the instcombine library.

llvm-svn: 92463

llvm-svn: 92462

llvm-svn: 92461

llvm-svn: 92460

llvm-svn: 92459

on the example in PR4216.  This doesn't trigger in the testsuite,
so I'd really appreciate someone scrutinizing the logic for
correctness.

llvm-svn: 92458

two labels as a truncate.

llvm-svn: 92455

returned null, and may not have been big enough in any case.  
Thanks to Jay Foad for pointing this out!

llvm-svn: 92452

global variable initializer to require relocations.

llvm-svn: 92450

llvm-svn: 92446

functionality change.

llvm-svn: 92445

arrays of structs and other arrays, so long as all the subsequent
indexes are constants.  This triggers frequently for stuff like:

@divisions = internal constant [29 x [2 x i32]] [[2 x i32] zeroinitializer, [2 x i32] [i32 0, i32 1], [2 x i32] [i32 0, i32 2], [2 x i32] [i32 0, i32 1], [2 x i32] zeroinitializer, [2 x i32] [i32 0, i32 1], [2 x i32] [i32 0, i32 1], [2 x i32] [i32 0, i32 2], [2 x i32] [i32 0, i32 2], [2 x i32] zeroinitializer, [2 x i32] zeroinitializer, [2 x i32] zeroinitializer, [2 x i32] [i32 0, i32 2], [2 x i32] [i32 0, i32 1], [2 x i32] zeroinitializer, [2 x i32] [i32 1, i32 0], [2 x i32] [i32 1, i32 1], [2 x i32] [i32 1, i32 1], [2 x i32] [i32 1, i32 2], [2 x i32] [i32 1, i32 1], [2 x i32] [i32 1, i32 0], [2 x i32] [i32 1, i32 2], [2 x i32] [i32 1, i32 2], [2 x i32] [i32 1, i32 0], [2 x i32] [i32 1, i32 0], [2 x i32] [i32 1, i32 0], [2 x i32] [i32 1, i32 1], [2 x i32] [i32 1, i32 2], [2 x i32] [i32 1, i32 2]], align 32 ; <[29 x [2 x i32]]*> [#uses=50]

	  %623 = getelementptr inbounds [29 x [2 x i32]]* @divisions, i64 0, i64 %619, i64 0 ; <i32*> [#uses=1]
	   %684 = icmp eq i32 %683, 999 

also for the "my_defs" table in 'gs', etc.

llvm-svn: 92444

llvm-svn: 92436

occurs in 403.gcc in mode_mask_array, in safe-ctype.c (which
is copied in multiple apps) in _sch_istable, etc.

llvm-svn: 92427