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* make these tests a bit less fragileChris Lattner2010-12-132-12/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121682 91177308-0d34-0410-b5e6-96231b3b80d8
* enhance the "change or icmp's into switch" xform to handle one value in an Chris Lattner2010-12-131-2/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'or sequence' that it doesn't understand. This allows us to optimize something insane like this: int crud (unsigned char c, unsigned x) { if(((((((((( (int) c <= 32 || (int) c == 46) || (int) c == 44) || (int) c == 58) || (int) c == 59) || (int) c == 60) || (int) c == 62) || (int) c == 34) || (int) c == 92) || (int) c == 39) != 0) foo(); } into: define i32 @crud(i8 zeroext %c, i32 %x) nounwind ssp noredzone { entry: %cmp = icmp ult i8 %c, 33 br i1 %cmp, label %if.then, label %switch.early.test switch.early.test: ; preds = %entry switch i8 %c, label %if.end [ i8 39, label %if.then i8 44, label %if.then i8 58, label %if.then i8 59, label %if.then i8 60, label %if.then i8 62, label %if.then i8 46, label %if.then i8 92, label %if.then i8 34, label %if.then ] by pulling the < comparison out ahead of the newly formed switch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121680 91177308-0d34-0410-b5e6-96231b3b80d8
* merge two testsChris Lattner2010-12-132-30/+42
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121679 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix my previous patch to handle a degenerate case that the llvm-gccChris Lattner2010-12-131-0/+23
| | | | | | | bootstrap buildbot tripped over. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121674 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a fairly serious oversight with switch formation fromChris Lattner2010-12-131-1/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | or'd conditions. Previously we'd compile something like this: int crud (unsigned char c) { return c == 62 || c == 34 || c == 92; } into: switch i8 %c, label %lor.rhs [ i8 62, label %lor.end i8 34, label %lor.end ] lor.rhs: ; preds = %entry %cmp8 = icmp eq i8 %c, 92 br label %lor.end lor.end: ; preds = %entry, %entry, %lor.rhs %0 = phi i1 [ true, %entry ], [ %cmp8, %lor.rhs ], [ true, %entry ] %lor.ext = zext i1 %0 to i32 ret i32 %lor.ext which failed to merge the compare-with-92 into the switch. With this patch we simplify this all the way to: switch i8 %c, label %lor.rhs [ i8 62, label %lor.end i8 34, label %lor.end i8 92, label %lor.end ] lor.rhs: ; preds = %entry br label %lor.end lor.end: ; preds = %entry, %entry, %entry, %lor.rhs %0 = phi i1 [ true, %entry ], [ false, %lor.rhs ], [ true, %entry ], [ true, %entry ] %lor.ext = zext i1 %0 to i32 ret i32 %lor.ext which is much better for codegen's switch lowering stuff. This kicks in 33 times on 176.gcc (for example) cutting 103 instructions off the generated code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121671 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for using the `!if' operator when initializing variables:Bill Wendling2010-12-131-3/+27
| | | | | | | | | | | | class A<bit a, bits<3> x, bits<3> y> { bits<3> z; let z = !if(a, x, y); } The variable z will get the value of x when 'a' is 1 and 'y' when a is '0'. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121666 91177308-0d34-0410-b5e6-96231b3b80d8
* Missed some ADDI <-> ADDIK conversions in 121649.Wesley Peck2010-12-121-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121652 91177308-0d34-0410-b5e6-96231b3b80d8
* Generalize the and-icmp-select instcombine further by allowing selects of ↵Benjamin Kramer2010-12-111-0/+50
| | | | | | | | | | | | the form (x & 2^n) ? 2^m+C : C we can offset both arms by C to get the "(x & 2^n) ? 2^m : 0" form, optimize the select to a shift and apply the offset afterwards. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121609 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor the (x & 2^n) ? 2^m : 0 instcombine into its own method and generalize itBenjamin Kramer2010-12-111-0/+25
| | | | | | | to catch cases where n != m with a shift. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121608 91177308-0d34-0410-b5e6-96231b3b80d8
* (or (and (shl A, #shamt), mask), B) => ARMbfi B, A, ~mask where lsb(mask) == ↵Evan Cheng2010-12-112-2/+24
| | | | | | #shamt. rdar://8752056 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121606 91177308-0d34-0410-b5e6-96231b3b80d8
* Add float patterns for Neon vld1-lane/dup and vst1-lane operations.Bob Wilson2010-12-104-18/+54
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121583 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r121520, which may have introduced miscompilations.Dan Gohman2010-12-101-27/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121573 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement PartialAlias checking in BasicAA.Dan Gohman2010-12-101-2/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121520 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix some invalid alignments for Neon vld-dup and vld/st-lane instructions.Bob Wilson2010-12-102-8/+28
| | | | | | | Alignments smaller than the total size of the memory being loaded or stored, unless the alignment is 8 bytes, are not allowed. Add tests for this, too. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121506 91177308-0d34-0410-b5e6-96231b3b80d8
* macho-dump: Fix CMake build, following up to r121466.NAKAMURA Takumi2010-12-101-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121476 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed version of 121434 with no new memory leaks.Rafael Espindola2010-12-102-1/+42
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121471 91177308-0d34-0410-b5e6-96231b3b80d8
* macho-dump: Switch to C++ macho-dump tool.Daniel Dunbar2010-12-102-0/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121466 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert my previous patch to make the valgrind bots happy.Rafael Espindola2010-12-102-42/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121461 91177308-0d34-0410-b5e6-96231b3b80d8
* Add dependency to "make check".NAKAMURA Takumi2010-12-101-1/+9
| | | | | | cmake/modules/AddLLVM.cmake: Add empty "phony" target in add_llvm_loadable_module() even if loadable module were not supported. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121455 91177308-0d34-0410-b5e6-96231b3b80d8
* Formalize the notion that AVX and SSE are non-overlapping extensions from ↵Nate Begeman2010-12-101-1/+1
| | | | | | the compiler's point of view. Per email discussion, we either want to always use VEX-prefixed instructions or never use them, and are taking "HasAVX" to mean "Always use VEX". Passing -mattr=-avx,+sse42 should serve to restore legacy SSE support when desirable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121439 91177308-0d34-0410-b5e6-96231b3b80d8
* Initial support for the cfi directives. This is just enough to getRafael Espindola2010-12-092-1/+42
| | | | | | | | | | | f: .cfi_startproc nop .cfi_endproc assembled (on ELF). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121434 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for parsing ARM arithmetic instructions that update or don't updateKevin Enderby2010-12-091-0/+9
| | | | | | | | | | the condition codes. Where the ones that do have an 's' suffix and the ones that don't don't have the suffix. The trick is if MatchInstructionImpl() fails we try again after adding a CCOut operand with the correct value and removing the 's' if present. Four simple test cases added for now, lots more to come. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121401 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM stm/ldm instructions require more than one register in the register list.Jim Grosbach2010-12-092-3/+3
| | | | | | | | Otherwise, a plain str/ldr should be used instead. Make sure we account for that in prologue/epilogue code generation. rdar://8745460 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121391 91177308-0d34-0410-b5e6-96231b3b80d8
* Add ROTR and ROTRV mips32 instructions. Patch by Akira HatanakaBruno Cardoso Lopes2010-12-091-0/+40
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121377 91177308-0d34-0410-b5e6-96231b3b80d8
* enhance memcpyopt to zap memcpy's that have the same src/dst.Chris Lattner2010-12-091-0/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121362 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR8753, eliminating a case where we'd infinitely make a Chris Lattner2010-12-091-3/+16
| | | | | | | | | substitution because it doesn't actually change the IR. Patch by Jakub Staszak! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121361 91177308-0d34-0410-b5e6-96231b3b80d8
* Rewrite the darwin tlv support to use a chain and return to copyingEric Christopher2010-12-091-0/+16
| | | | | | | | | the output to the correct register. Fixes a hidden problem uncovered by the last patch where we'd try to DAG combine our MVT::Other node oddly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121358 91177308-0d34-0410-b5e6-96231b3b80d8
* Really check that the bits that will become zero are actually already zeroDan Gohman2010-12-091-1/+25
| | | | | | | before eliminating the operation that zeros them. This fixes rdar://8739316. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121353 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove extraneous copy from DAG conversion for darwin tls. This wasEric Christopher2010-12-091-0/+32
| | | | | | | | popping up at O0 when it wasn't folded and the fast allocator would complain. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121330 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow a slash, '/', as a prefix separator for X86. rdar://8741045Kevin Enderby2010-12-081-0/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121320 91177308-0d34-0410-b5e6-96231b3b80d8
* Move this test to tlv* to make it easier to notice versus linux tlsEric Christopher2010-12-081-0/+0
| | | | | | | support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121316 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM/MC/ELF TPsoft is now a proper pseudo inst.Jason W Kim2010-12-081-0/+52
| | | | | | | | | | | Added test to check bl __aeabi_read_tp gets emitted properly for ELF/ASM as well as ELF/OBJ (including fixup) Also added support for ELF::R_ARM_TLS_IE32 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121312 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bad prologue / epilogue codegen bug where the compiler would emit illegalEvan Cheng2010-12-071-0/+40
| | | | | | | | | | | | vpush instructions to save / restore VFP / NEON registers like this: vpush {d8,d10,d11} vpop {d8,d10,d11} vpush and vpop do not allow gaps in the register list. rdar://8728956 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121197 91177308-0d34-0410-b5e6-96231b3b80d8
* Match a pattern generated by a dag combiner opt where:Bruno Cardoso Lopes2010-12-071-0/+15
| | | | | | | | | | (select (load (load tga0)) (load tga1)) => (load (select (load tga0) tga1)) Thanks to Akira for pointing that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121163 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix absolute recording of differences of symbols in two sections. Reduced ↵Rafael Espindola2010-12-071-0/+64
| | | | | | from ctor_dtor_count-2.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121152 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix relocations with weak definitions.Rafael Espindola2010-12-071-0/+141
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121114 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert test/Archive/check_binary_output.ll". It fails on a buildbot.NAKAMURA Takumi2010-12-071-4/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121113 91177308-0d34-0410-b5e6-96231b3b80d8
* reapply r121100 with a tweak to constant fold ConstExprs with TargetDataChris Lattner2010-12-071-0/+23
| | | | | | | | | (if available) as we go so that we get simple constantexprs not insane ones. This fixes the failure of clang/test/CodeGenCXX/virtual-base-ctor.cpp that the previous iteration of this patch had. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121111 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix pcrel relocations that cross sections.Rafael Espindola2010-12-071-0/+107
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121107 91177308-0d34-0410-b5e6-96231b3b80d8
* test/Archive/check_binary_output.ll: Add a new test to check output of ↵NAKAMURA Takumi2010-12-071-0/+4
| | | | | | 'llvm-ar -p' is sane. Thanks to Danil Malyshev! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121106 91177308-0d34-0410-b5e6-96231b3b80d8
* test/Other/close-stderr.ll: Require the feature 'shell'. It is not ↵NAKAMURA Takumi2010-12-071-0/+1
| | | | | | executable on Win32 but it is executable on MSYS-bash. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121105 91177308-0d34-0410-b5e6-96231b3b80d8
* test: Add the feature 'shell' on LLVM_ON_UNIX.NAKAMURA Takumi2010-12-071-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121104 91177308-0d34-0410-b5e6-96231b3b80d8
* Temporarily revert r121100 as it's causing clang to failEric Christopher2010-12-071-23/+0
| | | | | | | CodeGenCXX/virtual-base-ctor.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121102 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR8710 - teach global opt that some constantexprs are too complex toChris Lattner2010-12-071-0/+23
| | | | | | | put in a global variable's initializer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121100 91177308-0d34-0410-b5e6-96231b3b80d8
* Test: Fix Support.Path and _all_ of the unittest death tests. GetTempPath ↵Michael J. Spencer2010-12-072-0/+14
| | | | | | | | defaults to \Windows\. If I typed anything else it would just decline into cursing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121095 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a crash reduced from gcc produced assembly.Rafael Espindola2010-12-071-0/+122
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121085 91177308-0d34-0410-b5e6-96231b3b80d8
* Second attempt at converting Thumb2's LDRpci, including updating the ↵Owen Anderson2010-12-071-1/+1
| | | | | | gazillion places that need to know about it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121082 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement jump threading of 'indirectbr' by keeping track of whether we're ↵Frits van Bommel2010-12-061-0/+61
| | | | | | looking for ConstantInt*s or BlockAddress*s. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121066 91177308-0d34-0410-b5e6-96231b3b80d8
* If dbg_declare() or dbg_value() is not lowered by isel then emit DEBUG ↵Devang Patel2010-12-0612-288/+227
| | | | | | message instead of creating DBG_VALUE for undefined value in reg0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121059 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed reversed operands for IDIV and CMP instructions in MBlaze backend.Wesley Peck2010-12-062-4/+4
| | | | | | | | | Use BRAD instead of BRD for indirect branches in MBlaze backend. patch contributed by Jack Whitham! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121044 91177308-0d34-0410-b5e6-96231b3b80d8
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