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2006-10-14Start checking from the root of the matched sub-tree.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30957 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-14When checking if a load can be folded, we check if there is any non-directEvan Cheng
way to reach the load via any nodes that would be folded. Start from the root of the matched sub-tree. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30956 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-14Make sure that the node returned by SimplifySetCC is added to the worklistChris Lattner
so that it can be deleted if unused. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30955 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-14testcase for recent dag combiner patch. Before the entry bb was:Chris Lattner
_test: stwu r1, -80(r1) stw r1, 76(r1) mflr r11 stw r11, 88(r1) rlwinm r2, r4, 0, 30, 31 cmplwi cr7, r2, 2 mfcr r2 rlwinm r2, r2, 30, 31, 31 cmplwi cr0, r2, 0 bne cr0, LBB1_2 ;UnifiedReturnBlock after it is: _test: stwu r1, -80(r1) stw r1, 76(r1) mflr r11 stw r11, 88(r1) rlwinm r2, r4, 0, 30, 31 cmplwi cr0, r2, 2 bgt cr0, LBB1_2 ;UnifiedReturnBlock git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30954 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-14fold setcc of a setcc.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30953 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-14When SimplifySetCC was moved to the DAGCombiner, it was never removed fromChris Lattner
SelectionDAG and it has since bitrotted. Remove the copy from SelectionDAG. Next, remove the constant folding piece of DAGCombiner::SimplifySetCC into a new FoldSetCC method which can be used by getNode() and SimplifySetCC. This fixes obscure bugs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30952 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-14disable this pass for now, it's causing issuesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30951 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-14falling off the end of a function is ok with an unreachable instruction.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30950 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13testcase for recent selectiondag patchChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30949 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13Reduce the workload by not adding chain users to work list.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30948 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13Fix a bug where we incorrectly turned '(X & 0) == 0' into '(X & 0) >> -1',Chris Lattner
which is undefined. "0" isn't a power of 2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30947 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13implement branch inspection/modification methods.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30946 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13Merge ISD::TRUNCSTORE to ISD::STORE. Switch to using StoreSDNode.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30945 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13it is easier to implement these when they are virtualChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30944 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13allow branch reversal to failChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30943 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13Corrected formatting.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30942 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13add the branch folding pass as a late cleanup pass for all targets. For nowChris Lattner
it just deletes empty MBB's. Soon it will do more :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30941 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13replace the existing branch inspection/modification APIs with something moreChris Lattner
useful and general. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30940 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13disable some objectionable code, maybe we can bring this pass to lifeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30939 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13remove some dead codeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30938 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13add noteChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30937 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13set isBarrier correctlyChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30936 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13Correctly handle instruction separators.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30935 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13Expose method and ivars for measuring inline asm length properly.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30934 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13Move some warnings to debug mode.Andrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30933 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13add FNEGS and FNEGDRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30932 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13Fix another dtor issue. The function local statics in this function wereChris Lattner
being destroyed at inconvenient times. Switch to using non-local ManagedStatic objects, which actually also speeds up ConstRules::get. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30931 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13add SBCS and SUBSRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30930 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13implement calls to functions that return longRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30929 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13implement unordered floating point comparesRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30928 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13Workaround for templatesJim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30927 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13Clean up dump.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30926 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13avoid a ctor/dtor issue with the ProgramName global.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30925 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12simplify trivial functionChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30924 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12Really remove dead nodes from isel queue.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30923 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12shrink anon-ns and mark stuff static. No functionality changesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30922 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12add a noteChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30921 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12Lower X%C into X/C+stuff. This allows the 'division by a constant' logic toChris Lattner
apply to rems as well as divs. This fixes PR945 and speeds up ReedSolomon from 14.57s to 10.90s (which is now faster than gcc). It compiles CodeGen/X86/rem.ll into: _test1: subl $4, %esp movl %esi, (%esp) movl $2155905153, %ecx movl 8(%esp), %esi movl %esi, %eax imull %ecx addl %esi, %edx movl %edx, %eax shrl $31, %eax sarl $7, %edx addl %eax, %edx imull $255, %edx, %eax subl %eax, %esi movl %esi, %eax movl (%esp), %esi addl $4, %esp ret _test2: movl 4(%esp), %eax movl %eax, %ecx sarl $31, %ecx shrl $24, %ecx addl %eax, %ecx andl $4294967040, %ecx subl %ecx, %eax ret _test3: subl $4, %esp movl %esi, (%esp) movl $2155905153, %ecx movl 8(%esp), %esi movl %esi, %eax mull %ecx shrl $7, %edx imull $255, %edx, %eax subl %eax, %esi movl %esi, %eax movl (%esp), %esi addl $4, %esp ret instead of div/idiv instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30920 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12new testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30919 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12Add another cyclic dag test case.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30918 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12Use RemoveDeadNode to kill dead node.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30917 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12Add RemoveDeadNode to remove a dead node and its (potentially) dead operands.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30916 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12add a minor dag combine noticed when looking at PR945Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30915 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12Doh. This wasn't causing problems by luck.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30914 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12Some X86ISD::CMP were created with wrong ValueType's.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30913 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12Fix massive resource leaks in the bytecode reader. Reading a bytecode fileChris Lattner
with ParseBytecodeFile used to leak both a ModuleProvider (and related bytecode parser stuff attached to it) AND a file descriptor, which was never closed. This prevented gccld/llvm-ld/llvm-link from linking together apps with more that ~252 .bc files on darwin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30912 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12mark call adjustments as modifying the SPChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30911 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12adjcallstack up/down clobbers the spChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30910 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12adjcallstackup/down clobbers the stack pointerChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30909 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-12mark adjcallstack up/down as clobbering and using the SPChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30908 91177308-0d34-0410-b5e6-96231b3b80d8
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