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kmclaughlin-armkmclaughlin-arm
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- Added a flag to disable subreg liveness tracking and enabled
 generally for AArch64 by default.
1 parent 6103e1b commit ef6e9f4

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70 files changed

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‎llvm/lib/Target/AArch64/AArch64Subtarget.cpp

Lines changed: 4 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -75,6 +75,9 @@ static cl::opt<unsigned> AArch64MinimumJumpTableEntries(
7575
"aarch64-min-jump-table-entries", cl::init(13), cl::Hidden,
7676
cl::desc("Set minimum number of entries to use a jump table on AArch64"));
7777

78+
static cl::opt<bool> EnableSubRegLiveness(
79+
"aarch64-enable-subreg-liveness", cl::init(true), cl::Hidden);
80+
7881
unsigned AArch64Subtarget::getVectorInsertExtractBaseCost() const {
7982
if (OverrideVectorInsertExtractBaseCost.getNumOccurrences() > 0)
8083
return OverrideVectorInsertExtractBaseCost;
@@ -571,7 +574,7 @@ AArch64Subtarget::getAuthenticatedLRCheckMethod() const {
571574
}
572575

573576
bool AArch64Subtarget::enableSubRegLiveness() const {
574-
return hasSME() && isStreaming();
577+
return EnableSubRegLiveness;
575578
}
576579

577580
bool AArch64Subtarget::enableMachinePipeliner() const {

‎llvm/test/CodeGen/AArch64/Atomics/aarch64-atomicrmw-lse2_lse128.ll

Lines changed: 45 additions & 45 deletions
Original file line numberDiff line numberDiff line change
@@ -2273,10 +2273,10 @@ define dso_local i128 @atomicrmw_nand_i128_aligned_monotonic(ptr %ptr, i128 %val
22732273
; -O1-LABEL: atomicrmw_nand_i128_aligned_monotonic:
22742274
; -O1: ldp x4, x5, [x0]
22752275
; -O1: and x8, x4, x2
2276-
; -O1: and x9, x7, x3
2277-
; -O1: mvn x10, x8
2278-
; -O1: mvn x11, x9
2279-
; -O1: casp x4, x5, x10, x11, [x0]
2276+
; -O1: and x9, x5, x3
2277+
; -O1: mvn x8, x8
2278+
; -O1: mvn x9, x9
2279+
; -O1: casp x4, x5, x8, x9, [x0]
22802280
; -O1: cmp x5, x7
22812281
; -O1: ccmp x4, x6, #0, eq
22822282
%r = atomicrmw nand ptr %ptr, i128 %value monotonic, align 16
@@ -2298,10 +2298,10 @@ define dso_local i128 @atomicrmw_nand_i128_aligned_acquire(ptr %ptr, i128 %value
22982298
; -O1-LABEL: atomicrmw_nand_i128_aligned_acquire:
22992299
; -O1: ldp x4, x5, [x0]
23002300
; -O1: and x8, x4, x2
2301-
; -O1: and x9, x7, x3
2302-
; -O1: mvn x10, x8
2303-
; -O1: mvn x11, x9
2304-
; -O1: caspa x4, x5, x10, x11, [x0]
2301+
; -O1: and x9, x5, x3
2302+
; -O1: mvn x8, x8
2303+
; -O1: mvn x9, x9
2304+
; -O1: caspa x4, x5, x8, x9, [x0]
23052305
; -O1: cmp x5, x7
23062306
; -O1: ccmp x4, x6, #0, eq
23072307
%r = atomicrmw nand ptr %ptr, i128 %value acquire, align 16
@@ -2323,10 +2323,10 @@ define dso_local i128 @atomicrmw_nand_i128_aligned_release(ptr %ptr, i128 %value
23232323
; -O1-LABEL: atomicrmw_nand_i128_aligned_release:
23242324
; -O1: ldp x4, x5, [x0]
23252325
; -O1: and x8, x4, x2
2326-
; -O1: and x9, x7, x3
2327-
; -O1: mvn x10, x8
2328-
; -O1: mvn x11, x9
2329-
; -O1: caspl x4, x5, x10, x11, [x0]
2326+
; -O1: and x9, x5, x3
2327+
; -O1: mvn x8, x8
2328+
; -O1: mvn x9, x9
2329+
; -O1: caspl x4, x5, x8, x9, [x0]
23302330
; -O1: cmp x5, x7
23312331
; -O1: ccmp x4, x6, #0, eq
23322332
%r = atomicrmw nand ptr %ptr, i128 %value release, align 16
@@ -2348,10 +2348,10 @@ define dso_local i128 @atomicrmw_nand_i128_aligned_acq_rel(ptr %ptr, i128 %value
23482348
; -O1-LABEL: atomicrmw_nand_i128_aligned_acq_rel:
23492349
; -O1: ldp x4, x5, [x0]
23502350
; -O1: and x8, x4, x2
2351-
; -O1: and x9, x7, x3
2352-
; -O1: mvn x10, x8
2353-
; -O1: mvn x11, x9
2354-
; -O1: caspal x4, x5, x10, x11, [x0]
2351+
; -O1: and x9, x5, x3
2352+
; -O1: mvn x8, x8
2353+
; -O1: mvn x9, x9
2354+
; -O1: caspal x4, x5, x8, x9, [x0]
23552355
; -O1: cmp x5, x7
23562356
; -O1: ccmp x4, x6, #0, eq
23572357
%r = atomicrmw nand ptr %ptr, i128 %value acq_rel, align 16
@@ -2373,10 +2373,10 @@ define dso_local i128 @atomicrmw_nand_i128_aligned_seq_cst(ptr %ptr, i128 %value
23732373
; -O1-LABEL: atomicrmw_nand_i128_aligned_seq_cst:
23742374
; -O1: ldp x4, x5, [x0]
23752375
; -O1: and x8, x4, x2
2376-
; -O1: and x9, x7, x3
2377-
; -O1: mvn x10, x8
2378-
; -O1: mvn x11, x9
2379-
; -O1: caspal x4, x5, x10, x11, [x0]
2376+
; -O1: and x9, x5, x3
2377+
; -O1: mvn x8, x8
2378+
; -O1: mvn x9, x9
2379+
; -O1: caspal x4, x5, x8, x9, [x0]
23802380
; -O1: cmp x5, x7
23812381
; -O1: ccmp x4, x6, #0, eq
23822382
%r = atomicrmw nand ptr %ptr, i128 %value seq_cst, align 16
@@ -3406,7 +3406,7 @@ define dso_local i128 @atomicrmw_xor_i128_aligned_monotonic(ptr %ptr, i128 %valu
34063406
; -O1-LABEL: atomicrmw_xor_i128_aligned_monotonic:
34073407
; -O1: ldp x4, x5, [x0]
34083408
; -O1: eor x8, x4, x2
3409-
; -O1: eor x9, x7, x3
3409+
; -O1: eor x9, x5, x3
34103410
; -O1: casp x4, x5, x8, x9, [x0]
34113411
; -O1: cmp x5, x7
34123412
; -O1: ccmp x4, x6, #0, eq
@@ -3427,7 +3427,7 @@ define dso_local i128 @atomicrmw_xor_i128_aligned_acquire(ptr %ptr, i128 %value)
34273427
; -O1-LABEL: atomicrmw_xor_i128_aligned_acquire:
34283428
; -O1: ldp x4, x5, [x0]
34293429
; -O1: eor x8, x4, x2
3430-
; -O1: eor x9, x7, x3
3430+
; -O1: eor x9, x5, x3
34313431
; -O1: caspa x4, x5, x8, x9, [x0]
34323432
; -O1: cmp x5, x7
34333433
; -O1: ccmp x4, x6, #0, eq
@@ -3448,7 +3448,7 @@ define dso_local i128 @atomicrmw_xor_i128_aligned_release(ptr %ptr, i128 %value)
34483448
; -O1-LABEL: atomicrmw_xor_i128_aligned_release:
34493449
; -O1: ldp x4, x5, [x0]
34503450
; -O1: eor x8, x4, x2
3451-
; -O1: eor x9, x7, x3
3451+
; -O1: eor x9, x5, x3
34523452
; -O1: caspl x4, x5, x8, x9, [x0]
34533453
; -O1: cmp x5, x7
34543454
; -O1: ccmp x4, x6, #0, eq
@@ -3469,7 +3469,7 @@ define dso_local i128 @atomicrmw_xor_i128_aligned_acq_rel(ptr %ptr, i128 %value)
34693469
; -O1-LABEL: atomicrmw_xor_i128_aligned_acq_rel:
34703470
; -O1: ldp x4, x5, [x0]
34713471
; -O1: eor x8, x4, x2
3472-
; -O1: eor x9, x7, x3
3472+
; -O1: eor x9, x5, x3
34733473
; -O1: caspal x4, x5, x8, x9, [x0]
34743474
; -O1: cmp x5, x7
34753475
; -O1: ccmp x4, x6, #0, eq
@@ -3490,7 +3490,7 @@ define dso_local i128 @atomicrmw_xor_i128_aligned_seq_cst(ptr %ptr, i128 %value)
34903490
; -O1-LABEL: atomicrmw_xor_i128_aligned_seq_cst:
34913491
; -O1: ldp x4, x5, [x0]
34923492
; -O1: eor x8, x4, x2
3493-
; -O1: eor x9, x7, x3
3493+
; -O1: eor x9, x5, x3
34943494
; -O1: caspal x4, x5, x8, x9, [x0]
34953495
; -O1: cmp x5, x7
34963496
; -O1: ccmp x4, x6, #0, eq
@@ -3947,7 +3947,7 @@ define dso_local i128 @atomicrmw_max_i128_aligned_monotonic(ptr %ptr, i128 %valu
39473947
; -O1-LABEL: atomicrmw_max_i128_aligned_monotonic:
39483948
; -O1: ldp x4, x5, [x0]
39493949
; -O1: cmp x2, x4
3950-
; -O1: csel x9, x7, x3, lt
3950+
; -O1: csel x9, x5, x3, lt
39513951
; -O1: csel x8, x4, x2, lt
39523952
; -O1: casp x4, x5, x8, x9, [x0]
39533953
; -O1: cmp x5, x7
@@ -3975,7 +3975,7 @@ define dso_local i128 @atomicrmw_max_i128_aligned_acquire(ptr %ptr, i128 %value)
39753975
; -O1-LABEL: atomicrmw_max_i128_aligned_acquire:
39763976
; -O1: ldp x4, x5, [x0]
39773977
; -O1: cmp x2, x4
3978-
; -O1: csel x9, x7, x3, lt
3978+
; -O1: csel x9, x5, x3, lt
39793979
; -O1: csel x8, x4, x2, lt
39803980
; -O1: caspa x4, x5, x8, x9, [x0]
39813981
; -O1: cmp x5, x7
@@ -4003,7 +4003,7 @@ define dso_local i128 @atomicrmw_max_i128_aligned_release(ptr %ptr, i128 %value)
40034003
; -O1-LABEL: atomicrmw_max_i128_aligned_release:
40044004
; -O1: ldp x4, x5, [x0]
40054005
; -O1: cmp x2, x4
4006-
; -O1: csel x9, x7, x3, lt
4006+
; -O1: csel x9, x5, x3, lt
40074007
; -O1: csel x8, x4, x2, lt
40084008
; -O1: caspl x4, x5, x8, x9, [x0]
40094009
; -O1: cmp x5, x7
@@ -4031,7 +4031,7 @@ define dso_local i128 @atomicrmw_max_i128_aligned_acq_rel(ptr %ptr, i128 %value)
40314031
; -O1-LABEL: atomicrmw_max_i128_aligned_acq_rel:
40324032
; -O1: ldp x4, x5, [x0]
40334033
; -O1: cmp x2, x4
4034-
; -O1: csel x9, x7, x3, lt
4034+
; -O1: csel x9, x5, x3, lt
40354035
; -O1: csel x8, x4, x2, lt
40364036
; -O1: caspal x4, x5, x8, x9, [x0]
40374037
; -O1: cmp x5, x7
@@ -4059,7 +4059,7 @@ define dso_local i128 @atomicrmw_max_i128_aligned_seq_cst(ptr %ptr, i128 %value)
40594059
; -O1-LABEL: atomicrmw_max_i128_aligned_seq_cst:
40604060
; -O1: ldp x4, x5, [x0]
40614061
; -O1: cmp x2, x4
4062-
; -O1: csel x9, x7, x3, lt
4062+
; -O1: csel x9, x5, x3, lt
40634063
; -O1: csel x8, x4, x2, lt
40644064
; -O1: caspal x4, x5, x8, x9, [x0]
40654065
; -O1: cmp x5, x7
@@ -4592,7 +4592,7 @@ define dso_local i128 @atomicrmw_min_i128_aligned_monotonic(ptr %ptr, i128 %valu
45924592
; -O1-LABEL: atomicrmw_min_i128_aligned_monotonic:
45934593
; -O1: ldp x4, x5, [x0]
45944594
; -O1: cmp x2, x4
4595-
; -O1: csel x9, x7, x3, ge
4595+
; -O1: csel x9, x5, x3, ge
45964596
; -O1: csel x8, x4, x2, ge
45974597
; -O1: casp x4, x5, x8, x9, [x0]
45984598
; -O1: cmp x5, x7
@@ -4620,7 +4620,7 @@ define dso_local i128 @atomicrmw_min_i128_aligned_acquire(ptr %ptr, i128 %value)
46204620
; -O1-LABEL: atomicrmw_min_i128_aligned_acquire:
46214621
; -O1: ldp x4, x5, [x0]
46224622
; -O1: cmp x2, x4
4623-
; -O1: csel x9, x7, x3, ge
4623+
; -O1: csel x9, x5, x3, ge
46244624
; -O1: csel x8, x4, x2, ge
46254625
; -O1: caspa x4, x5, x8, x9, [x0]
46264626
; -O1: cmp x5, x7
@@ -4648,7 +4648,7 @@ define dso_local i128 @atomicrmw_min_i128_aligned_release(ptr %ptr, i128 %value)
46484648
; -O1-LABEL: atomicrmw_min_i128_aligned_release:
46494649
; -O1: ldp x4, x5, [x0]
46504650
; -O1: cmp x2, x4
4651-
; -O1: csel x9, x7, x3, ge
4651+
; -O1: csel x9, x5, x3, ge
46524652
; -O1: csel x8, x4, x2, ge
46534653
; -O1: caspl x4, x5, x8, x9, [x0]
46544654
; -O1: cmp x5, x7
@@ -4676,7 +4676,7 @@ define dso_local i128 @atomicrmw_min_i128_aligned_acq_rel(ptr %ptr, i128 %value)
46764676
; -O1-LABEL: atomicrmw_min_i128_aligned_acq_rel:
46774677
; -O1: ldp x4, x5, [x0]
46784678
; -O1: cmp x2, x4
4679-
; -O1: csel x9, x7, x3, ge
4679+
; -O1: csel x9, x5, x3, ge
46804680
; -O1: csel x8, x4, x2, ge
46814681
; -O1: caspal x4, x5, x8, x9, [x0]
46824682
; -O1: cmp x5, x7
@@ -4704,7 +4704,7 @@ define dso_local i128 @atomicrmw_min_i128_aligned_seq_cst(ptr %ptr, i128 %value)
47044704
; -O1-LABEL: atomicrmw_min_i128_aligned_seq_cst:
47054705
; -O1: ldp x4, x5, [x0]
47064706
; -O1: cmp x2, x4
4707-
; -O1: csel x9, x7, x3, ge
4707+
; -O1: csel x9, x5, x3, ge
47084708
; -O1: csel x8, x4, x2, ge
47094709
; -O1: caspal x4, x5, x8, x9, [x0]
47104710
; -O1: cmp x5, x7
@@ -5237,7 +5237,7 @@ define dso_local i128 @atomicrmw_umax_i128_aligned_monotonic(ptr %ptr, i128 %val
52375237
; -O1-LABEL: atomicrmw_umax_i128_aligned_monotonic:
52385238
; -O1: ldp x4, x5, [x0]
52395239
; -O1: cmp x2, x4
5240-
; -O1: csel x9, x7, x3, lo
5240+
; -O1: csel x9, x5, x3, lo
52415241
; -O1: csel x8, x4, x2, lo
52425242
; -O1: casp x4, x5, x8, x9, [x0]
52435243
; -O1: cmp x5, x7
@@ -5265,7 +5265,7 @@ define dso_local i128 @atomicrmw_umax_i128_aligned_acquire(ptr %ptr, i128 %value
52655265
; -O1-LABEL: atomicrmw_umax_i128_aligned_acquire:
52665266
; -O1: ldp x4, x5, [x0]
52675267
; -O1: cmp x2, x4
5268-
; -O1: csel x9, x7, x3, lo
5268+
; -O1: csel x9, x5, x3, lo
52695269
; -O1: csel x8, x4, x2, lo
52705270
; -O1: caspa x4, x5, x8, x9, [x0]
52715271
; -O1: cmp x5, x7
@@ -5293,7 +5293,7 @@ define dso_local i128 @atomicrmw_umax_i128_aligned_release(ptr %ptr, i128 %value
52935293
; -O1-LABEL: atomicrmw_umax_i128_aligned_release:
52945294
; -O1: ldp x4, x5, [x0]
52955295
; -O1: cmp x2, x4
5296-
; -O1: csel x9, x7, x3, lo
5296+
; -O1: csel x9, x5, x3, lo
52975297
; -O1: csel x8, x4, x2, lo
52985298
; -O1: caspl x4, x5, x8, x9, [x0]
52995299
; -O1: cmp x5, x7
@@ -5321,7 +5321,7 @@ define dso_local i128 @atomicrmw_umax_i128_aligned_acq_rel(ptr %ptr, i128 %value
53215321
; -O1-LABEL: atomicrmw_umax_i128_aligned_acq_rel:
53225322
; -O1: ldp x4, x5, [x0]
53235323
; -O1: cmp x2, x4
5324-
; -O1: csel x9, x7, x3, lo
5324+
; -O1: csel x9, x5, x3, lo
53255325
; -O1: csel x8, x4, x2, lo
53265326
; -O1: caspal x4, x5, x8, x9, [x0]
53275327
; -O1: cmp x5, x7
@@ -5349,7 +5349,7 @@ define dso_local i128 @atomicrmw_umax_i128_aligned_seq_cst(ptr %ptr, i128 %value
53495349
; -O1-LABEL: atomicrmw_umax_i128_aligned_seq_cst:
53505350
; -O1: ldp x4, x5, [x0]
53515351
; -O1: cmp x2, x4
5352-
; -O1: csel x9, x7, x3, lo
5352+
; -O1: csel x9, x5, x3, lo
53535353
; -O1: csel x8, x4, x2, lo
53545354
; -O1: caspal x4, x5, x8, x9, [x0]
53555355
; -O1: cmp x5, x7
@@ -5877,7 +5877,7 @@ define dso_local i128 @atomicrmw_umin_i128_aligned_monotonic(ptr %ptr, i128 %val
58775877
; -O1-LABEL: atomicrmw_umin_i128_aligned_monotonic:
58785878
; -O1: ldp x4, x5, [x0]
58795879
; -O1: cmp x2, x4
5880-
; -O1: csel x9, x7, x3, hs
5880+
; -O1: csel x9, x5, x3, hs
58815881
; -O1: csel x8, x4, x2, hs
58825882
; -O1: casp x4, x5, x8, x9, [x0]
58835883
; -O1: cmp x5, x7
@@ -5905,7 +5905,7 @@ define dso_local i128 @atomicrmw_umin_i128_aligned_acquire(ptr %ptr, i128 %value
59055905
; -O1-LABEL: atomicrmw_umin_i128_aligned_acquire:
59065906
; -O1: ldp x4, x5, [x0]
59075907
; -O1: cmp x2, x4
5908-
; -O1: csel x9, x7, x3, hs
5908+
; -O1: csel x9, x5, x3, hs
59095909
; -O1: csel x8, x4, x2, hs
59105910
; -O1: caspa x4, x5, x8, x9, [x0]
59115911
; -O1: cmp x5, x7
@@ -5933,7 +5933,7 @@ define dso_local i128 @atomicrmw_umin_i128_aligned_release(ptr %ptr, i128 %value
59335933
; -O1-LABEL: atomicrmw_umin_i128_aligned_release:
59345934
; -O1: ldp x4, x5, [x0]
59355935
; -O1: cmp x2, x4
5936-
; -O1: csel x9, x7, x3, hs
5936+
; -O1: csel x9, x5, x3, hs
59375937
; -O1: csel x8, x4, x2, hs
59385938
; -O1: caspl x4, x5, x8, x9, [x0]
59395939
; -O1: cmp x5, x7
@@ -5961,7 +5961,7 @@ define dso_local i128 @atomicrmw_umin_i128_aligned_acq_rel(ptr %ptr, i128 %value
59615961
; -O1-LABEL: atomicrmw_umin_i128_aligned_acq_rel:
59625962
; -O1: ldp x4, x5, [x0]
59635963
; -O1: cmp x2, x4
5964-
; -O1: csel x9, x7, x3, hs
5964+
; -O1: csel x9, x5, x3, hs
59655965
; -O1: csel x8, x4, x2, hs
59665966
; -O1: caspal x4, x5, x8, x9, [x0]
59675967
; -O1: cmp x5, x7
@@ -5989,7 +5989,7 @@ define dso_local i128 @atomicrmw_umin_i128_aligned_seq_cst(ptr %ptr, i128 %value
59895989
; -O1-LABEL: atomicrmw_umin_i128_aligned_seq_cst:
59905990
; -O1: ldp x4, x5, [x0]
59915991
; -O1: cmp x2, x4
5992-
; -O1: csel x9, x7, x3, hs
5992+
; -O1: csel x9, x5, x3, hs
59935993
; -O1: csel x8, x4, x2, hs
59945994
; -O1: caspal x4, x5, x8, x9, [x0]
59955995
; -O1: cmp x5, x7

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