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llvm-mirror/test/CodeGen/Thumb2
James Molloy a7843cefbb [ARM] Use VCMP, not VCMPE, for floating point equality comparisons
When generating a floating point comparison we currently unconditionally
generate VCMPE. This has the sideeffect of setting the cumulative Invalid
bit in FPSCR if any of the operands are QNaN.

It is expected that use of a relational predicate on a QNaN value should
raise Invalid. Quoting from the C standard:

  The relational and equality operators support the usual mathematical
  relationships between numeric values. For any ordered pair of numeric
  values exactly one of relationships the less, greater, equal and is true.
  Relational operators may raise the floating-point exception when argument
  values are NaNs.

The standard doesn't explicitly state the expectation for equality operators,
but the implication and obvious expectation is that equality operators
should not raise Invalid on a QNaN input, as those predicates are wholly
defined on unordered inputs (to return not equal).

Therefore, add a new operand to ARMISD::FPCMP and FPCMPZ indicating if
QNaN should raise Invalid, and pipe that through to TableGen.

llvm-svn: 294945
2017-02-13 12:32:47 +00:00
..
2009-07-17-CrossRegClassCopy.ll
2009-07-21-ISelBug.ll [ARM] Generate consistent frame records for Thumb2 2016-08-23 09:19:22 +00:00
2009-07-23-CPIslandBug.ll
2009-07-30-PEICrash.ll
2009-08-01-WrongLDRBOpc.ll
2009-08-02-CoalescerBug.ll
2009-08-04-CoalescerAssert.ll
2009-08-04-CoalescerBug.ll
2009-08-04-ScavengerAssert.ll
2009-08-04-SubregLoweringBug2.ll
2009-08-04-SubregLoweringBug3.ll
2009-08-04-SubregLoweringBug.ll
2009-08-06-SpDecBug.ll
2009-08-07-CoalescerBug.ll
2009-08-07-NeonFPBug.ll
2009-08-08-ScavengerAssert.ll
2009-08-10-ISelBug.ll
2009-08-21-PostRAKill4.ll
2009-09-01-PostRAProlog.ll
2009-09-28-ITBlockBug.ll
2009-10-15-ITBlockBranch.ll
2009-11-01-CopyReg2RegBug.ll
2009-11-11-ScavengerAssert.ll
2009-11-13-STRDBug.ll
2009-12-01-LoopIVUsers.ll
2010-01-06-TailDuplicateLabels.ll
2010-01-19-RemovePredicates.ll
2010-02-11-phi-cycle.ll
2010-02-24-BigStack.ll
2010-03-08-addi12-ccout.ll
2010-03-15-AsmCCClobber.ll
2010-04-15-DynAllocBug.ll
2010-04-26-CopyRegCrash.ll
2010-05-24-rsbs.ll
2010-06-14-NEONCoalescer.ll
2010-06-19-ITBlockCrash.ll
2010-06-21-TailMergeBug.ll
2010-08-10-VarSizedAllocaBug.ll
2010-11-22-EpilogueBug.ll [ARM] Generate consistent frame records for Thumb2 2016-08-23 09:19:22 +00:00
2010-12-03-AddSPNarrowing.ll
2011-04-21-FILoweringBug.ll
2011-06-07-TwoAddrEarlyClobber.ll
2011-12-16-T2SizeReduceAssert.ll
2012-01-13-CBNZBug.ll
2013-02-19-tail-call-register-hint.ll
2013-03-02-vduplane-nonconstant-source-index.ll
2013-03-06-vector-sext-operand-scalarize.ll
aapcs.ll
aligned-constants.ll
aligned-spill.ll [ARM] Generate consistent frame records for Thumb2 2016-08-23 09:19:22 +00:00
bfi.ll
bfx.ll
bicbfi.ll [Thumb] Reapply r272251 with a fix for PR28348 (mk 2) 2016-07-05 12:37:13 +00:00
buildvector-crash.ll
carry.ll
cbnz.ll CodeGen: Allow small copyable blocks to "break" the CFG. 2017-01-31 23:48:32 +00:00
constant-islands-jump-table.ll
constant-islands-new-island-padding.ll
constant-islands-new-island.ll
constant-islands.ll
cortex-fp.ll
crash.ll
cross-rc-coalescing-1.ll
cross-rc-coalescing-2.ll
div.ll
emit-unwinding.ll
float-cmp.ll [ARM] Use VCMP, not VCMPE, for floating point equality comparisons 2017-02-13 12:32:47 +00:00
float-intrinsics-double.ll ARM: match GCC's behaviour for builtins 2017-01-13 16:25:33 +00:00
float-intrinsics-float.ll ARM: match GCC's behaviour for builtins 2017-01-13 16:25:33 +00:00
float-ops.ll [Thumb] Teach ISel how to lower compares of AND bitmasks efficiently 2016-12-15 09:38:59 +00:00
frame-pointer.ll Re-land "[Thumb] Save/restore high registers in Thumb1 pro/epilogues" 2016-10-11 21:14:03 +00:00
frameless2.ll
frameless.ll
ifcvt-compare.ll CodeGen: Allow small copyable blocks to "break" the CFG. 2017-01-31 23:48:32 +00:00
ifcvt-neon.ll
ifcvt-rescan-bug-2016-08-22.ll IfConversion: Rescan diamonds. 2016-08-24 21:34:24 +00:00
ifcvt-rescan-diamonds.ll IfConversion: Fix bug introduced by rescanning diamonds. 2016-09-02 18:29:26 +00:00
inflate-regs.ll
inlineasm.ll
intrinsics-cc.ll ARM: match GCC's behaviour for builtins 2017-01-13 16:25:33 +00:00
intrinsics-coprocessor.ll [ARM] Avoid using ARM instructions in Thumb mode 2017-01-31 14:35:01 +00:00
large-call.ll
large-stack.ll
ldr-str-imm12.ll
lit.local.cfg
longMACt.ll
lsr-deficiency.ll [Thumb] Select (CMPZ X, -C) -> (CMPZ (ADDS X, C), 0) 2016-09-09 12:52:24 +00:00
machine-licm.ll Make the canonicalisation on shifts benifit to more case. 2016-12-23 02:56:07 +00:00
mul_const.ll
pic-load.ll
segmented-stacks.ll
setjmp_longjmp.ll
stack_guard_remat.ll
tail-call-r9.ll
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
thumb2-call-tc.ll
thumb2-call.ll
thumb2-cbnz.ll
thumb2-clz.ll
thumb2-cmn2.ll [Thumb] Select (CMPZ X, -C) -> (CMPZ (ADDS X, C), 0) 2016-09-09 12:52:24 +00:00
thumb2-cmn.ll
thumb2-cmp2.ll
thumb2-cmp.ll
thumb2-cpsr-liveness.ll
thumb2-eor2.ll
thumb2-eor.ll
thumb2-ifcvt1-tc.ll
thumb2-ifcvt1.ll CodeGen: If Convert blocks that would form a diamond when tail-merged. 2016-08-24 21:34:27 +00:00
thumb2-ifcvt2.ll
thumb2-ifcvt3.ll
thumb2-jtb.ll [Thumb-1] Synthesize TBB/TBH instructions to make use of compressed jump tables 2016-11-01 13:37:41 +00:00
thumb2-ldm.ll [ARM] Generate consistent frame records for Thumb2 2016-08-23 09:19:22 +00:00
thumb2-ldr_ext.ll
thumb2-ldr_post.ll
thumb2-ldr_pre.ll
thumb2-ldr.ll
thumb2-ldrb.ll
thumb2-ldrd.ll
thumb2-ldrh.ll
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
thumb2-rev16.ll
thumb2-rev.ll
thumb2-ror.ll
thumb2-rsb2.ll
thumb2-rsb.ll
thumb2-sbc.ll
thumb2-select_xform.ll
thumb2-select.ll
thumb2-shifter.ll
thumb2-smla.ll
thumb2-smul.ll
thumb2-spill-q.ll
thumb2-str_post.ll
thumb2-str_pre.ll
thumb2-str.ll
thumb2-strb.ll
thumb2-strh.ll
thumb2-sub2.ll
thumb2-sub3.ll
thumb2-sub4.ll
thumb2-sub5.ll
thumb2-sub.ll
thumb2-sxt_rot.ll [ARM] Improve sxta{b|h} and uxta{b|h} tests 2016-08-10 09:34:34 +00:00
thumb2-sxt-uxt.ll [ARM] Improve sxta{b|h} and uxta{b|h} tests 2016-08-10 09:34:34 +00:00
thumb2-tbb.ll [Thumb-1] Synthesize TBB/TBH instructions to make use of compressed jump tables 2016-11-01 13:37:41 +00:00
thumb2-tbh.ll [Thumb-1] Synthesize TBB/TBH instructions to make use of compressed jump tables 2016-11-01 13:37:41 +00:00
thumb2-teq2.ll
thumb2-teq.ll
thumb2-tst2.ll
thumb2-tst.ll
thumb2-uxt_rot.ll [ARM] Improve sxta{b|h} and uxta{b|h} tests 2016-08-10 09:34:34 +00:00
thumb2-uxtb.ll
tls1.ll
tls2.ll
tpsoft.ll
v8_IT_1.ll
v8_IT_2.ll
v8_IT_3.ll
v8_IT_4.ll CodeGen: Allow small copyable blocks to "break" the CFG. 2017-01-31 23:48:32 +00:00
v8_IT_5.ll
v8_IT_6.ll