Chris Lattner 6b0e3f8907 Make CanFallThrough more intelligent (so it can handle blocks with (e.g.) no ... successors), and make island block movement more general. This compiles CodeGen/X86/2006-04-27-ISelFoldingBug.ll to: _loadAndRLEsource_no_exit_2E_1_label_2E_0: subl $8, %esp movl %esi, 4(%esp) movl %ebx, (%esp) movl 16(%esp), %eax movl 12(%esp), %ecx LBB1_3: #label.0 movl _last, %edx movl %edx, %esi incl %esi movl %esi, _last movl %ecx, %ebx # TRUNCATE movb %bl, %bl movl _block, %esi movb %bl, 1(%esi,%edx) cmpl %eax, _last jge LBB1_2 #codeRepl5.exitStub LBB1_4: #label.0 cmpl $257, %ecx je LBB1_2 #codeRepl5.exitStub LBB1_1: #label.0.no_exit.1_crit_edge.exitStub movl $1, %eax movl (%esp), %ebx movl 4(%esp), %esi addl $8, %esp ret LBB1_2: #codeRepl5.exitStub xorl %eax, %eax movl (%esp), %ebx movl 4(%esp), %esi addl $8, %esp ret instead of: _loadAndRLEsource_no_exit_2E_1_label_2E_0: subl $8, %esp movl %esi, 4(%esp) movl %ebx, (%esp) movl 16(%esp), %eax movl 12(%esp), %ecx jmp LBB1_3 #label.0 LBB1_1: #label.0.no_exit.1_crit_edge.exitStub movl $1, %eax movl (%esp), %ebx movl 4(%esp), %esi addl $8, %esp ret LBB1_2: #codeRepl5.exitStub xorl %eax, %eax movl (%esp), %ebx movl 4(%esp), %esi addl $8, %esp ret LBB1_3: #label.0 movl _last, %edx movl %edx, %esi incl %esi movl %esi, _last movl %ecx, %ebx # TRUNCATE movb %bl, %bl movl _block, %esi movb %bl, 1(%esi,%edx) cmpl %eax, _last jge LBB1_2 #codeRepl5.exitStub LBB1_4: #label.0 cmpl $257, %ecx jne LBB1_1 #label.0.no_exit.1_crit_edge.exitStub jmp LBB1_2 #codeRepl5.exitStub ... which is much better layout :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31282 91177308-0d34-0410-b5e6-96231b3b80d8		2006-10-29 21:05:41 +00:00
..
Analysis	add a method	2006-10-28 01:24:05 +00:00
Archive	For PR797:	2006-08-25 19:54:53 +00:00
AsmParser	For PR950:	2006-10-26 06:15:43 +00:00
Bytecode	For PR950:	2006-10-26 06:15:43 +00:00
CodeGen	Make CanFallThrough more intelligent (so it can handle blocks with (e.g.) no	2006-10-29 21:05:41 +00:00
Debugger	For PR950:	2006-10-20 07:07:24 +00:00
ExecutionEngine	For PR950:	2006-10-26 06:15:43 +00:00
Linker	Adding dllimport, dllexport and external weak linkage types.	2006-09-14 18:23:27 +00:00
Support	Try again.	2006-10-29 09:19:59 +00:00
System	Use new config.h macro	2006-09-14 06:21:59 +00:00
Target	implement the BlockHasNoFallThrough hook	2006-10-28 17:35:02 +00:00
Transforms	add option to isCriticalEdge	2006-10-28 06:58:17 +00:00
VMCore	Make the Value and Type methods print a newline so it prints nicely in gdb	2006-10-27 18:58:54 +00:00
Makefile	Make some changes suggested by Chris:	2006-05-17 22:55:35 +00:00