Robert Dazi 8837898b8d [DAGCombine] Count leading ones: refine post DAG/Type Legalisation if promotion (#102877) ...

This PR is related to #99591. In this PR, instead of modifying how the
legalisation occurs depending on surrounding instructions, we refine
after legalisation.

This PR has two parts:

* `SDPatternMatch/MatchContext`: Modify a little bit the code to match
Operands (used by `m_Node(...)`) and Unary/Binary/Ternary Patterns to
make it compatible with `VPMatchContext`, instead of only `m_Opc`
supported. Some tests were added to ensure no regressions.
* `DAGCombiner`: Add a `foldSubCtlzNot` which detect and rewrite the
patterns using matching context.

Remaining Tasks:

- [ ] GlobalISel
- [ ] Currently the pattern matching will occur even before
legalisation. Should I restrict it to specific stages instead ?
- [ ] Style: Add a visitVP_SUB ?? Move `foldSubCtlzNot` in another
location for style consistency purpose ?

@topperc

---------

Co-authored-by: v01dxyz <v01dxyz@v01d.xyz>

2024-09-15 15:48:36 +04:00

..

ir-instruction

[LoongArch] Eliminate the redundant sign extension of division (#107971)

2024-09-10 16:52:21 +08:00

lasx

[LoongArch] Codegen for concat_vectors with LASX

2024-09-10 09:28:15 +08:00

lsx

[LoongArch] Merge base and offset for LSX/LASX memory accesses (#104452)

2024-08-19 15:23:05 +08:00

addrspacecast.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

alloca.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

alsl.ll

[LoongArch] Custom legalize i32 operations for LA64 to reduce signed extensions (#93811)

2024-06-03 13:23:35 +08:00

analyze-branch.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

andn-icmp.ll

[LoongArch] Recommit "Remove spurious mask operations from andn->icmp on 16 and 8 bit values" (#99798)

2024-07-22 15:10:21 +08:00

atomicrmw-cond-sub-clamp.ll

Add usub_cond and usub_sat operations to atomicrmw (#105568)

2024-09-06 16:19:20 +01:00

atomicrmw-uinc-udec-wrap.ll

[LoongArch] Custom legalize i32 operations for LA64 to reduce signed extensions (#93811)

2024-06-03 13:23:35 +08:00

bitreverse.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

block-address.ll

[LoongArch] Add machine function pass to merge base + offset (#101139)

2024-08-08 23:05:38 +08:00

blockaddress-symbol.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

bnez-beqz.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

branch-relaxation-spill-32.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

branch-relaxation-spill-64.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

branch-relaxation.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

bstrins_d.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

bstrins_w.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

bstrpick_d.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

bstrpick_w.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

bswap-bitreverse.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

bswap.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

bytepick.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

calling-conv-common.ll

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calling-conv-lp64d.ll

[LoongArch] Add machine function pass to merge base + offset (#101139)

2024-08-08 23:05:38 +08:00

calling-conv-lp64s.ll

[LoongArch] Set isAsCheapAsAMove on ADDI.D and {X}ORI instructions (#94733)

2024-06-12 22:02:47 +08:00

can-not-realign-stack.ll

[LoongArch] Merge base and offset for LSX/LASX memory accesses (#104452)

2024-08-19 15:23:05 +08:00

cfr-copy.mir

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cfr-pseudo-copy.mir

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code-models.ll

[LoongArch] Reimplement to prevent Pseudo{CALL, LA*}_LARGE instruction reordering (#100099)

2024-07-30 14:22:53 +08:00

cpu-name-generic.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

cpus-invalid.ll

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cpus.ll

[LoongArch] Support la664 (#100068)

2024-07-23 15:14:20 +08:00

ctlz-cttz-ctpop.ll

[DAGCombine] Count leading ones: refine post DAG/Type Legalisation if promotion (#102877)

2024-09-15 15:48:36 +04:00

ctpop-with-lsx.ll

[LoongArch] Legalize ISD::CTPOP for GRLenVT type with LSX

2024-09-06 15:46:43 +08:00

double-br-fcmp.ll

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double-fcmp-strict.ll

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double-fcmps-strict.ll

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double-fma.ll

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double-imm.ll

[LoongArch] Add machine function pass to merge base + offset (#101139)

2024-08-08 23:05:38 +08:00

duplicate-returns-for-tailcall.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

dwarf-eh.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

e_flags.ll

[LoongArch] Refactor LoongArchABI::computeTargetABI

2024-05-16 17:15:21 +08:00

eh-dwarf-cfa.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

emergency-spill-slot.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

emutls.ll

[LoongArch] Emit error messages when using emulated TLS

2024-06-12 17:41:26 +08:00

exception-pointer-register.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

expand-call.ll

[LoongArch] Reimplement to prevent Pseudo{CALL, LA*}_LARGE instruction reordering (#100099)

2024-07-30 14:22:53 +08:00

fabs.ll

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fcopysign.ll

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feature-32bit.ll

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float-br-fcmp.ll

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float-fcmp-strict.ll

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float-fcmps-strict.ll

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float-fma.ll

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float-imm-vldi.ll

[LoongArch] Load floating-point immediate using VLDI (#101923)

2024-08-09 14:08:32 +08:00

float-imm.ll

[LoongArch] Add machine function pass to merge base + offset (#101139)

2024-08-08 23:05:38 +08:00

fp16-promote.ll

[loongarch][DAG][FREEZE] Fix crash when FREEZE a half(f16) type on loongarch (#107791)

2024-09-13 08:49:54 +08:00

fp-expand.ll

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fp-max-min.ll

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fp-maximumnum-minimumnum.ll

Intrinsic: introduce minimumnum and maximumnum for IR and SelectionDAG (#96649)

2024-08-15 14:09:36 +08:00

fp-reciprocal.ll

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fp-trunc-store.ll

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frame.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

frameaddr-returnaddr.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

frint.ll

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fsqrt.ll

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gep-imm.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

get-reg-error-la32.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

get-reg-error-la64.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

get-reg.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

get-setcc-result-type.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

ghc-cc.ll

[LoongArch] Add machine function pass to merge base + offset (#101139)

2024-08-08 23:05:38 +08:00

global-address.ll

[LoongArch] Add machine function pass to merge base + offset (#101139)

2024-08-08 23:05:38 +08:00

global-variable-code-model.ll

[LoongArch] Add machine function pass to merge base + offset (#101139)

2024-08-08 23:05:38 +08:00

imm.ll

[LoongArch] Optimize for immediate value materialization using BSTRINS_D instruction

2024-08-30 16:38:42 +08:00

inline-asm-clobbers-fcc.mir

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inline-asm-clobbers.ll

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inline-asm-constraint-error.ll

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inline-asm-constraint-f.ll

[LoongArch] Add machine function pass to merge base + offset (#101139)

2024-08-08 23:05:38 +08:00

inline-asm-constraint-k.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

inline-asm-constraint-m.ll

[LoongArch] Add machine function pass to merge base + offset (#101139)

2024-08-08 23:05:38 +08:00

inline-asm-constraint-ZB.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

inline-asm-constraint-ZC.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

inline-asm-constraint.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

inline-asm-operand-modifiers.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

inline-asm-reg-names-error.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

inline-asm-reg-names-f-error.ll

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inline-asm-reg-names-f.ll

…

inline-asm-reg-names.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

intrinsic-csr-side-effects.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

intrinsic-error.ll

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intrinsic-frecipe-dbl.ll

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intrinsic-frecipe-flt.ll

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intrinsic-iocsr-side-effects.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

intrinsic-la32-error.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

intrinsic-la32.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

intrinsic-la64-error.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

intrinsic-la64.ll

[LoongArch] Add a pass to rewrite rd to r0 for non-computational instrs whose return values are unused (#94590)

2024-06-07 15:39:05 +08:00

intrinsic-memcpy.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

intrinsic-not-constant-error.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

intrinsic.ll

[LoongArch] Add a pass to rewrite rd to r0 for non-computational instrs whose return values are unused (#94590)

2024-06-07 15:39:05 +08:00

is_fpclass_f32.ll

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is_fpclass_f64.ll

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jump-table.ll

[LoongArch] Set isAsCheapAsAMove on ADDI.D and {X}ORI instructions (#94733)

2024-06-12 22:02:47 +08:00

ldptr.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

ldx-stx-sp-1.ll

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ldx-stx-sp-2.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

ldx-stx-sp-3.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

legalicmpimm.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

libcall-extend.ll

[LoongArch] Suppress the unnecessary extensions for arguments in makeLibCall

2024-05-17 09:13:51 +08:00

lit.local.cfg

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load-store-offset.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

machinelicm-address-pseudos.ll

[LoongArch] Add machine function pass to merge base + offset (#101139)

2024-08-08 23:05:38 +08:00

mafft-Lalignmm.ll

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memcmp.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

merge-base-offset.ll

[LoongArch] Optimize for immediate value materialization using BSTRINS_D instruction

2024-08-30 16:38:42 +08:00

mir-target-flags.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

nomerge.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

not.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

numeric-reg-names.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

O0-pipeline.ll

[ExtendLifetimes] Implement llvm.fake.use to extend variable lifetimes (#86149)

2024-08-29 17:53:32 +01:00

opt-pipeline.ll

[ExtendLifetimes] Implement llvm.fake.use to extend variable lifetimes (#86149)

2024-08-29 17:53:32 +01:00

patchable-function-entry.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

prefer-w-inst.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

preferred-alignments.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

psabi-restricted-scheduling.ll

[LoongArch] Add machine function pass to merge base + offset (#101139)

2024-08-08 23:05:38 +08:00

register-coalescer-crash-pr79718.mir

[LoongArch] Set isAsCheapAsAMove on ADDI.D and {X}ORI instructions (#94733)

2024-06-12 22:02:47 +08:00

returnaddr-error.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

rotl-rotr.ll

[LoongArch] Optimize codegen for ISD::ROTL (#100344)

2024-07-30 14:22:24 +08:00

scmp.ll

[SelectionDAG] Expand [US]CMP using arithmetic on boolean values instead of selects (#98774)

2024-07-16 20:56:18 +01:00

select-const.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

select-to-shiftand.ll

[LoongArch] Custom legalize i32 operations for LA64 to reduce signed extensions (#93811)

2024-06-03 13:23:35 +08:00

sext-cheaper-than-zext.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

sextw-removal.ll

[LoongArch] Optimize for immediate value materialization using BSTRINS_D instruction

2024-08-30 16:38:42 +08:00

shift-masked-shamt.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

shrinkwrap.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

smul-with-overflow.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

soft-fp-to-int.ll

[LoongArch] Suppress the unnecessary extensions for arguments in makeLibCall

2024-05-17 09:13:51 +08:00

spill-ra-without-kill.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

spill-reload-cfr.ll

…

split-sp-adjust.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

stack-realignment-with-variable-sized-objects.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

stack-realignment.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

statepoint-call-lowering-r1.ll

[LoongArch] Implement Statepoint lowering (#108212)

2024-09-12 18:05:13 +08:00

statepoint-call-lowering.ll

[LoongArch] Implement Statepoint lowering (#108212)

2024-09-12 18:05:13 +08:00

stptr.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

tail-calls.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

target_support.ll

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target-abi-from-triple-edge-cases.ll

[LoongArch] Refactor LoongArchABI::computeTargetABI

2024-05-16 17:15:21 +08:00

target-abi-from-triple.ll

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target-abi.ll

[LoongArch] Enable all -target-abi options

2024-05-16 16:54:18 +08:00

test_bl_fixupkind.mir

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

thread-pointer.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

tls-models.ll

[LoongArch] Reimplement to prevent Pseudo{CALL, LA*}_LARGE instruction reordering (#100099)

2024-07-30 14:22:53 +08:00

trap.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

typepromotion-overflow.ll

[LoongArch] Enable the TypePromotion pass from AArch64 (#98868)

2024-07-17 12:21:44 +08:00

ucmp.ll

[LegalizeTypes][RISCV][LoongArch] Optimize promotion of ucmp. (#101366)

2024-07-31 17:18:27 -07:00

unaligned-access.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

unaligned-memcpy-inline.ll

[LoongArch] Align stack objects passed to memory intrinsics (#101309)

2024-08-02 11:28:03 +08:00

vararg.ll

[LoongArch] Set isAsCheapAsAMove on ADDI.D and {X}ORI instructions (#94733)

2024-06-12 22:02:47 +08:00

vector-fp-imm.ll

[LoongArch] Add machine function pass to merge base + offset (#101139)

2024-08-08 23:05:38 +08:00

xray-attribute-instrumentation.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00

zext-with-load-is-free.ll

[test][LoongArch] Add -mattr=+d option. NFC

2024-05-14 20:23:04 +08:00