Dan Gohman 102f3851bb Eliminate the first have of the optimization which eliminates BRCOND ... when the condition is constant. This optimization shouldn't be necessary, because codegen shouldn't be able to find dead control paths that the IR-level optimizer can't find. And it's undesirable, because it encourages bugpoint to leave "br i1 false" branches in its output. And it wasn't updating the CFG. I updated all the tests I could, but some tests are too reduced and I wasn't able to meaningfully preserve them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106748 91177308-0d34-0410-b5e6-96231b3b80d8		2010-06-24 15:04:11 +00:00
..
2009-07-17-CrossRegClassCopy.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-07-21-ISelBug.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-07-23-CPIslandBug.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-07-30-PEICrash.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-08-01-WrongLDRBOpc.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-08-02-CoalescerBug.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-08-04-CoalescerAssert.ll	Remove the arm_aapcscc marker from the tests. It is the default	2010-06-15 19:04:29 +00:00
2009-08-04-CoalescerBug.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-08-04-ScavengerAssert.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-08-04-SubregLoweringBug2.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-08-04-SubregLoweringBug3.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-08-04-SubregLoweringBug.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-08-06-SpDecBug.ll	Remove the arm_aapcscc marker from the tests. It is the default	2010-06-15 19:04:29 +00:00
2009-08-07-CoalescerBug.ll
2009-08-07-NeonFPBug.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-08-08-ScavengerAssert.ll	Remove the arm_aapcscc marker from the tests. It is the default	2010-06-15 19:04:29 +00:00
2009-08-10-ISelBug.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-09-28-ITBlockBug.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-10-15-ITBlockBranch.ll	Fix an inverted condition.	2010-06-18 22:17:13 +00:00
2009-11-01-CopyReg2RegBug.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-11-11-ScavengerAssert.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-11-13-STRDBug.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-12-01-LoopIVUsers.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2010-01-06-TailDuplicateLabels.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2010-01-19-RemovePredicates.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2010-02-11-phi-cycle.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2010-02-24-BigStack.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2010-03-08-addi12-ccout.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2010-03-15-AsmCCClobber.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2010-04-15-DynAllocBug.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2010-04-26-CopyRegCrash.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2010-05-24-rsbs.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2010-06-14-NEONCoalescer.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2010-06-19-ITBlockCrash.ll	Fix a crash caused by dereference of MBB.end(). rdar://8110842	2010-06-20 00:54:38 +00:00
2010-06-21-TailMergeBug.ll	Tail merging pass shall not break up IT blocks. rdar://8115404	2010-06-22 01:18:16 +00:00
bfx.ll	Update ARM DAGtoDAG for matching UBFX instruction for unsigned bitfield	2010-04-22 23:24:18 +00:00
carry.ll
crash.ll	TwoAddressInstructionPass::CoalesceExtSubRegs can insert INSERT_SUBREG	2010-06-18 22:29:44 +00:00
cross-rc-coalescing-1.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
cross-rc-coalescing-2.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
dg.exp
div.ll	fix copy/paste oops.	2010-05-05 21:07:46 +00:00
frameless2.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
frameless.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
ifcvt-neon.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
large-stack.ll	Stop using the old pre-UAL syntax for LDM/STM instruction suffixes.	2010-03-16 16:19:07 +00:00
ldr-str-imm12.ll	Eliminate the first have of the optimization which eliminates BRCOND	2010-06-24 15:04:11 +00:00
load-global.ll	Start function numbering at 0.	2010-04-17 16:29:15 +00:00
lsr-deficiency.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
machine-licm.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
mul_const.ll
pic-load.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
sign_extend_inreg.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
thumb2-adc.ll
thumb2-add2.ll
thumb2-add3.ll
thumb2-add4.ll
thumb2-add5.ll
thumb2-add6.ll
thumb2-add.ll
thumb2-and2.ll
thumb2-and.ll
thumb2-asr2.ll
thumb2-asr.ll
thumb2-bcc.ll
thumb2-bfc.ll
thumb2-bic.ll
thumb2-branch.ll	Fix a bug which prevented tail merging of return instructions in	2010-05-03 14:35:47 +00:00
thumb2-call-tc.ll	Disable sibcall optimization for Thumb1 for now since Thumb1RegisterInfo::emitEpilogue is not expecting them.	2010-06-19 01:01:32 +00:00
thumb2-call.ll	Remove tail call to preserve this test. A tail	2010-06-03 21:57:48 +00:00
thumb2-cbnz.ll	Allow ARM if-converter to be run after post allocation scheduling.	2010-06-18 23:09:54 +00:00
thumb2-clz.ll
thumb2-cmn2.ll
thumb2-cmn.ll
thumb2-cmp2.ll
thumb2-cmp.ll
thumb2-eor2.ll
thumb2-eor.ll
thumb2-ifcvt1-tc.ll	Enable tail calls on ARM by default, with some	2010-06-18 19:00:18 +00:00
thumb2-ifcvt1.ll	Remove tail call. A tail call version will follow.	2010-06-04 00:03:37 +00:00
thumb2-ifcvt2.ll	Allow ARM if-converter to be run after post allocation scheduling.	2010-06-18 23:09:54 +00:00
thumb2-ifcvt3.ll	Start function numbering at 0.	2010-04-17 16:29:15 +00:00
thumb2-jtb.ll
thumb2-ldm.ll	Make this test not use tail calls. A tail call	2010-06-03 21:53:01 +00:00
thumb2-ldr_ext.ll
thumb2-ldr_post.ll
thumb2-ldr_pre.ll
thumb2-ldr.ll	Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm	2010-03-17 17:52:21 +00:00
thumb2-ldrb.ll
thumb2-ldrd.ll
thumb2-ldrh.ll	Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm	2010-03-17 17:52:21 +00:00
thumb2-lsl2.ll
thumb2-lsl.ll
thumb2-lsr2.ll
thumb2-lsr3.ll
thumb2-lsr.ll
thumb2-mla.ll
thumb2-mls.ll
thumb2-mov.ll
thumb2-mul.ll
thumb2-mulhi.ll
thumb2-mvn2.ll
thumb2-mvn.ll
thumb2-neg.ll
thumb2-orn2.ll
thumb2-orn.ll
thumb2-orr2.ll
thumb2-orr.ll
thumb2-pack.ll	Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack	2010-05-05 23:44:43 +00:00
thumb2-rev16.ll
thumb2-rev.ll	Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack	2010-05-05 23:44:43 +00:00
thumb2-ror2.ll
thumb2-ror.ll
thumb2-rsb2.ll
thumb2-rsb.ll
thumb2-sbc.ll
thumb2-select_xform.ll	Move ARM if-conversion before post-ra scheduling.	2010-06-18 23:32:07 +00:00
thumb2-select.ll
thumb2-shifter.ll	Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack	2010-05-05 23:44:43 +00:00
thumb2-smla.ll	Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack	2010-05-05 23:44:43 +00:00
thumb2-smul.ll	Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack	2010-05-05 23:44:43 +00:00
thumb2-spill-q.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
thumb2-str_post.ll
thumb2-str_pre.ll	Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm	2010-03-17 17:52:21 +00:00
thumb2-str.ll	Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm	2010-03-17 17:52:21 +00:00
thumb2-strb.ll	Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm	2010-03-17 17:52:21 +00:00
thumb2-strh.ll	Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm	2010-03-17 17:52:21 +00:00
thumb2-sub2.ll
thumb2-sub4.ll
thumb2-sub5.ll
thumb2-sub.ll
thumb2-sxt_rot.ll	Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack	2010-05-05 23:44:43 +00:00
thumb2-tbb.ll
thumb2-tbh.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
thumb2-teq2.ll
thumb2-teq.ll
thumb2-tst2.ll
thumb2-tst.ll
thumb2-uxt_rot.ll	Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack	2010-05-05 23:44:43 +00:00
thumb2-uxtb.ll	Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack	2010-05-05 23:44:43 +00:00
tls1.ll
tls2.ll