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2006-10-30Simplify DwarfWriter header.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31295 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30All targets expand BR_JT for now.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31294 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30Lower jumptable to BR_JT. The legalizer can lower it to a BRIND or let the ↵Evan Cheng
target custom lower it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31293 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30Added a new SDNode type: BR_JT for jumptable branch.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31292 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29add a highly efficient hash table that is specialized for mapping C stringsChris Lattner
to some other type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31286 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29Add a new llvm::Allocator abstraction, which will be used by a containerChris Lattner
I'm about to add. This is similar to, but necessarily different than, the STL allocator class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31285 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29Fix SimplifyCFG/2006-10-29-InvokeCrash.ll, a crash compiling QT.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31284 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29Make CanFallThrough more intelligent (so it can handle blocks with (e.g.) noChris Lattner
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
2006-10-29fix Generic/2006-10-29-Crash.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31281 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29Fix a load folding issue that Evan noticed: there is no need to export valuesChris Lattner
used by comparisons in the main block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31279 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29Try again.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31278 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29Not handling zero length strings.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31277 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29VLOAD is not the LoadSDNode opcode.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31276 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29Remove spurious case. EXTLOAD is not one of the node opcodes.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31275 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28split critical edges more carefully and intelligently. In particular, criticalChris Lattner
edges whose destinations are not phi nodes don't bother us. Also, share split edges, since the split edge can't have a phi. This significantly reduces the complexity of generated code in some cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31274 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28Teach branch folding to fold identical jump tables together and to deleteChris Lattner
jump tables that are dead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31273 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28const'ify jump table stuffChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31269 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28add an assertChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31267 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28don't print dead jump tablesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31266 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28implement the BlockHasNoFallThrough hookChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31264 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28improve deletion of blocks that just contain branches by knowing thatChris Lattner
the pred block doesn't fall through into them if it's a jumptable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31263 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28add another target hook for branch folding.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31262 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28Load and stores have not been uniqued properly.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31261 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28Split *all* critical edges before isel. This resolves issues with spill codeChris Lattner
being inserted on unsplit critical edges, which introduces (sometimes large amounts of) partially dead spill code. This also fixes PR925 + CodeGen/Generic/switch-crit-edge-constant.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31260 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28add option to isCriticalEdgeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31258 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28break edges more intelligentlyChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31257 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28Expose a smarter way to break critical edges.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31256 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28SplitCriticalEdge checks to see if an edge is critical, don't check twiceChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31255 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28Fix a serious bug that caused any x86 vector stuff to infinite loopChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31254 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28Doh. Must check if GV is constant first before putting it in .cstring.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31253 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28Doh. Must check if GV is constant first.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31252 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28add a methodChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31249 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28prepare for a change I'm about to makeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31248 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28don't dist internal readmeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31247 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28don't dist internal readme'sChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31246 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28don't distribute internal readme'sChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31245 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28Make sure all the readme files get distributed.Reid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31244 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-27Clean up.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31243 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-27Fix a bug in merged condition handling ↵Chris Lattner
(CodeGen/Generic/2006-10-27-CondFolding.ll). Add many fewer CFG edges and PHI node entries. If there is a switch which has the same block as multiple destinations, only add that block once as a successor/phi node (in the jumptable case) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31242 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-27Switch over from SelectionNodeCSEMap to FoldingSet.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31240 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-27this doesn't occur any more in masonChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31236 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-27the code in question is now:Chris Lattner
cmpw cr0, r7, r3 ble cr0, LBB1_5 ;bb25 LBB1_8: ;bb17 cmpw cr0, r8, r5 bgt cr0, LBB1_2 ;bb which is just as good as crnand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31235 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-27remove debug codeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31233 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-27Codegen cond&cond with two branches. This compiles (f.e.) ↵Chris Lattner
PowerPC/and-branch.ll to: cmpwi cr0, r4, 4 bgt cr0, LBB1_2 ;UnifiedReturnBlock LBB1_3: ;entry cmplwi cr0, r3, 0 bne cr0, LBB1_2 ;UnifiedReturnBlock instead of: cmpwi cr7, r4, 4 mfcr r2 addic r4, r3, -1 subfe r3, r4, r3 rlwinm r2, r2, 30, 31, 31 or r2, r2, r3 cmplwi cr0, r2, 0 bne cr0, LBB1_2 ;UnifiedReturnBlock LBB1_1: ;cond_true git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31232 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-27Turn conditions like x<Y|z==q into multiple blocks.Chris Lattner
This compiles Regression/CodeGen/X86/or-branch.ll into: _foo: subl $12, %esp call L_bar$stub movl 20(%esp), %eax movl 16(%esp), %ecx cmpl $5, %eax jl LBB1_1 #cond_true LBB1_3: #entry testl %ecx, %ecx jne LBB1_2 #UnifiedReturnBlock LBB1_1: #cond_true call L_bar$stub addl $12, %esp ret LBB1_2: #UnifiedReturnBlock addl $12, %esp ret instead of: _foo: subl $12, %esp call L_bar$stub movl 20(%esp), %eax movl 16(%esp), %ecx cmpl $4, %eax setg %al testl %ecx, %ecx setne %cl testb %cl, %al jne LBB1_2 #UnifiedReturnBlock LBB1_1: #cond_true call L_bar$stub addl $12, %esp ret LBB1_2: #UnifiedReturnBlock addl $12, %esp ret And on ppc to: cmpwi cr0, r29, 5 blt cr0, LBB1_1 ;cond_true LBB1_3: ;entry cmplwi cr0, r30, 0 bne cr0, LBB1_2 ;UnifiedReturnBlock instead of: cmpwi cr7, r4, 4 mfcr r2 addic r4, r3, -1 subfe r30, r4, r3 rlwinm r29, r2, 30, 31, 31 and r2, r29, r30 cmplwi cr0, r2, 0 bne cr0, LBB1_2 ;UnifiedReturnBlock git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31230 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-27Fixed a significant bug where unpcklpd is incorrectly used to extract ↵Evan Cheng
element 1 from a v2f64 value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31228 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-27SmallVector append not insert.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31224 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-27Grrr.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31223 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-27Temp patch for missing functionality.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31222 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-27Make the Value and Type methods print a newline so it prints nicely in gdbReid Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31221 91177308-0d34-0410-b5e6-96231b3b80d8
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