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Revert "[InstSimplify] Fold getelementptr inbounds null, idx -> null (#130742)" (#138168)
Revert #130742 for now to avoid breaking glibc failures until the workaround patches are landed.
1 parent a073bb5 commit c37b254

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4 files changed

+105
-111
lines changed

4 files changed

+105
-111
lines changed

‎llvm/lib/Analysis/InstructionSimplify.cpp

-8
Original file line numberDiff line numberDiff line change
@@ -5042,14 +5042,6 @@ static Value *simplifyGEPInst(Type *SrcTy, Value *Ptr,
50425042
if (Q.isUndefValue(Ptr))
50435043
return UndefValue::get(GEPTy);
50445044

5045-
// getelementptr inbounds null, idx -> null
5046-
if (NW.isInBounds() && Q.IIQ.UseInstrInfo && Q.CxtI) {
5047-
if (auto *BaseC = dyn_cast<Constant>(Ptr))
5048-
if (BaseC->isNullValue() &&
5049-
!NullPointerIsDefined(Q.CxtI->getFunction(), AS))
5050-
return Constant::getNullValue(GEPTy);
5051-
}
5052-
50535045
bool IsScalableVec =
50545046
SrcTy->isScalableTy() || any_of(Indices, [](const Value *V) {
50555047
return isa<ScalableVectorType>(V->getType());

‎llvm/test/CodeGen/AMDGPU/memcpy-crash-issue63986.ll

+95-98
Original file line numberDiff line numberDiff line change
@@ -7,141 +7,138 @@ define void @issue63986(i64 %0, i64 %idxprom, ptr inreg %ptr) {
77
; CHECK-LABEL: issue63986:
88
; CHECK: ; %bb.0: ; %entry
99
; CHECK-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
10-
; CHECK-NEXT: v_lshlrev_b64 v[8:9], 6, v[2:3]
11-
; CHECK-NEXT: v_mov_b32_e32 v4, s17
12-
; CHECK-NEXT: v_add_co_u32_e32 v10, vcc, s16, v8
13-
; CHECK-NEXT: v_addc_co_u32_e32 v11, vcc, v4, v9, vcc
14-
; CHECK-NEXT: ; %bb.1: ; %entry.loop-memcpy-expansion_crit_edge
15-
; CHECK-NEXT: v_mov_b32_e32 v4, 0
16-
; CHECK-NEXT: v_mov_b32_e32 v5, 0
17-
; CHECK-NEXT: flat_load_dwordx4 v[4:7], v[4:5]
10+
; CHECK-NEXT: v_lshlrev_b64 v[4:5], 6, v[2:3]
11+
; CHECK-NEXT: v_mov_b32_e32 v6, s17
12+
; CHECK-NEXT: v_add_co_u32_e32 v8, vcc, s16, v4
13+
; CHECK-NEXT: v_addc_co_u32_e32 v9, vcc, v6, v5, vcc
1814
; CHECK-NEXT: s_mov_b64 s[4:5], 0
19-
; CHECK-NEXT: s_waitcnt vmcnt(0)
20-
; CHECK-NEXT: .LBB0_2: ; %loop-memcpy-expansion
15+
; CHECK-NEXT: .LBB0_1: ; %loop-memcpy-expansion
2116
; CHECK-NEXT: ; =>This Inner Loop Header: Depth=1
22-
; CHECK-NEXT: v_add_co_u32_e32 v12, vcc, s4, v10
17+
; CHECK-NEXT: v_mov_b32_e32 v7, s5
18+
; CHECK-NEXT: v_mov_b32_e32 v6, s4
19+
; CHECK-NEXT: flat_load_dwordx4 v[10:13], v[6:7]
20+
; CHECK-NEXT: v_add_co_u32_e32 v6, vcc, s4, v8
2321
; CHECK-NEXT: s_add_u32 s4, s4, 16
24-
; CHECK-NEXT: v_mov_b32_e32 v13, s5
2522
; CHECK-NEXT: s_addc_u32 s5, s5, 0
2623
; CHECK-NEXT: v_cmp_ge_u64_e64 s[6:7], s[4:5], 32
27-
; CHECK-NEXT: v_addc_co_u32_e32 v13, vcc, v11, v13, vcc
24+
; CHECK-NEXT: v_addc_co_u32_e32 v7, vcc, v9, v7, vcc
2825
; CHECK-NEXT: s_and_b64 vcc, exec, s[6:7]
29-
; CHECK-NEXT: s_waitcnt lgkmcnt(0)
30-
; CHECK-NEXT: flat_store_dwordx4 v[12:13], v[4:7]
31-
; CHECK-NEXT: s_cbranch_vccz .LBB0_2
32-
; CHECK-NEXT: ; %bb.3: ; %loop-memcpy-residual-header
26+
; CHECK-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
27+
; CHECK-NEXT: flat_store_dwordx4 v[6:7], v[10:13]
28+
; CHECK-NEXT: s_cbranch_vccz .LBB0_1
29+
; CHECK-NEXT: ; %bb.2: ; %loop-memcpy-residual-header
30+
; CHECK-NEXT: s_branch .LBB0_4
31+
; CHECK-NEXT: ; %bb.3:
32+
; CHECK-NEXT: ; implicit-def: $vgpr6_vgpr7
3333
; CHECK-NEXT: s_branch .LBB0_5
34-
; CHECK-NEXT: ; %bb.4:
35-
; CHECK-NEXT: ; implicit-def: $vgpr2_vgpr3
36-
; CHECK-NEXT: s_branch .LBB0_6
37-
; CHECK-NEXT: .LBB0_5: ; %loop-memcpy-residual-header.post-loop-memcpy-expansion_crit_edge
38-
; CHECK-NEXT: v_lshlrev_b64 v[2:3], 6, v[2:3]
39-
; CHECK-NEXT: s_cbranch_execnz .LBB0_9
40-
; CHECK-NEXT: .LBB0_6: ; %loop-memcpy-residual-header.loop-memcpy-residual_crit_edge
41-
; CHECK-NEXT: v_mov_b32_e32 v2, 0
42-
; CHECK-NEXT: v_mov_b32_e32 v3, 0
43-
; CHECK-NEXT: flat_load_ubyte v2, v[2:3]
44-
; CHECK-NEXT: s_add_u32 s6, s16, 32
45-
; CHECK-NEXT: s_addc_u32 s4, s17, 0
46-
; CHECK-NEXT: v_mov_b32_e32 v4, s4
47-
; CHECK-NEXT: v_add_co_u32_e32 v3, vcc, s6, v8
34+
; CHECK-NEXT: .LBB0_4: ; %loop-memcpy-residual-header.post-loop-memcpy-expansion_crit_edge
35+
; CHECK-NEXT: v_lshlrev_b64 v[6:7], 6, v[2:3]
36+
; CHECK-NEXT: s_cbranch_execnz .LBB0_8
37+
; CHECK-NEXT: .LBB0_5: ; %loop-memcpy-residual.preheader
38+
; CHECK-NEXT: s_add_u32 s4, s16, 32
39+
; CHECK-NEXT: s_addc_u32 s5, s17, 0
40+
; CHECK-NEXT: v_mov_b32_e32 v3, s5
41+
; CHECK-NEXT: v_add_co_u32_e32 v2, vcc, s4, v4
42+
; CHECK-NEXT: v_addc_co_u32_e32 v3, vcc, v3, v5, vcc
4843
; CHECK-NEXT: s_mov_b64 s[4:5], 0
49-
; CHECK-NEXT: v_addc_co_u32_e32 v4, vcc, v4, v9, vcc
50-
; CHECK-NEXT: s_waitcnt vmcnt(0)
51-
; CHECK-NEXT: ; %bb.7: ; %loop-memcpy-residual
52-
; CHECK-NEXT: v_mov_b32_e32 v6, s5
53-
; CHECK-NEXT: v_add_co_u32_e32 v5, vcc, s4, v3
44+
; CHECK-NEXT: ; %bb.6: ; %loop-memcpy-residual
45+
; CHECK-NEXT: s_add_u32 s6, 32, s4
46+
; CHECK-NEXT: s_addc_u32 s7, 0, s5
47+
; CHECK-NEXT: v_mov_b32_e32 v6, s6
48+
; CHECK-NEXT: v_mov_b32_e32 v7, s7
49+
; CHECK-NEXT: flat_load_ubyte v10, v[6:7]
50+
; CHECK-NEXT: v_mov_b32_e32 v7, s5
51+
; CHECK-NEXT: v_add_co_u32_e32 v6, vcc, s4, v2
52+
; CHECK-NEXT: v_addc_co_u32_e32 v7, vcc, v3, v7, vcc
5453
; CHECK-NEXT: s_add_u32 s4, s4, 1
55-
; CHECK-NEXT: v_addc_co_u32_e32 v6, vcc, v4, v6, vcc
5654
; CHECK-NEXT: s_addc_u32 s5, s5, 0
57-
; CHECK-NEXT: s_waitcnt lgkmcnt(0)
58-
; CHECK-NEXT: flat_store_byte v[5:6], v2
59-
; CHECK-NEXT: ; %bb.8:
60-
; CHECK-NEXT: v_mov_b32_e32 v2, v8
61-
; CHECK-NEXT: v_mov_b32_e32 v3, v9
62-
; CHECK-NEXT: .LBB0_9: ; %post-loop-memcpy-expansion
63-
; CHECK-NEXT: v_and_b32_e32 v6, 15, v0
55+
; CHECK-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
56+
; CHECK-NEXT: flat_store_byte v[6:7], v10
57+
; CHECK-NEXT: ; %bb.7:
58+
; CHECK-NEXT: v_mov_b32_e32 v7, v5
59+
; CHECK-NEXT: v_mov_b32_e32 v6, v4
60+
; CHECK-NEXT: .LBB0_8: ; %post-loop-memcpy-expansion
61+
; CHECK-NEXT: v_and_b32_e32 v2, 15, v0
6462
; CHECK-NEXT: v_and_b32_e32 v0, -16, v0
65-
; CHECK-NEXT: v_add_co_u32_e32 v2, vcc, v2, v0
66-
; CHECK-NEXT: v_mov_b32_e32 v7, 0
67-
; CHECK-NEXT: v_addc_co_u32_e32 v3, vcc, v3, v1, vcc
63+
; CHECK-NEXT: v_add_co_u32_e32 v4, vcc, v6, v0
64+
; CHECK-NEXT: v_mov_b32_e32 v3, 0
65+
; CHECK-NEXT: v_addc_co_u32_e32 v5, vcc, v7, v1, vcc
6866
; CHECK-NEXT: v_cmp_ne_u64_e64 s[4:5], 0, v[0:1]
69-
; CHECK-NEXT: v_cmp_ne_u64_e64 s[6:7], 0, v[6:7]
70-
; CHECK-NEXT: v_mov_b32_e32 v4, s17
71-
; CHECK-NEXT: v_mov_b32_e32 v8, 0
72-
; CHECK-NEXT: v_add_co_u32_e32 v12, vcc, s16, v2
73-
; CHECK-NEXT: v_mov_b32_e32 v9, 0
74-
; CHECK-NEXT: v_addc_co_u32_e32 v13, vcc, v4, v3, vcc
75-
; CHECK-NEXT: s_branch .LBB0_12
76-
; CHECK-NEXT: .LBB0_10: ; %Flow14
77-
; CHECK-NEXT: ; in Loop: Header=BB0_12 Depth=1
67+
; CHECK-NEXT: v_cmp_ne_u64_e64 s[6:7], 0, v[2:3]
68+
; CHECK-NEXT: v_mov_b32_e32 v6, s17
69+
; CHECK-NEXT: v_add_co_u32_e32 v4, vcc, s16, v4
70+
; CHECK-NEXT: v_addc_co_u32_e32 v5, vcc, v6, v5, vcc
71+
; CHECK-NEXT: s_branch .LBB0_11
72+
; CHECK-NEXT: .LBB0_9: ; %Flow14
73+
; CHECK-NEXT: ; in Loop: Header=BB0_11 Depth=1
7874
; CHECK-NEXT: s_or_b64 exec, exec, s[10:11]
7975
; CHECK-NEXT: s_mov_b64 s[8:9], 0
80-
; CHECK-NEXT: .LBB0_11: ; %Flow16
81-
; CHECK-NEXT: ; in Loop: Header=BB0_12 Depth=1
76+
; CHECK-NEXT: .LBB0_10: ; %Flow16
77+
; CHECK-NEXT: ; in Loop: Header=BB0_11 Depth=1
8278
; CHECK-NEXT: s_andn2_b64 vcc, exec, s[8:9]
83-
; CHECK-NEXT: s_cbranch_vccz .LBB0_20
84-
; CHECK-NEXT: .LBB0_12: ; %while.cond
79+
; CHECK-NEXT: s_cbranch_vccz .LBB0_19
80+
; CHECK-NEXT: .LBB0_11: ; %while.cond
8581
; CHECK-NEXT: ; =>This Loop Header: Depth=1
86-
; CHECK-NEXT: ; Child Loop BB0_14 Depth 2
87-
; CHECK-NEXT: ; Child Loop BB0_18 Depth 2
82+
; CHECK-NEXT: ; Child Loop BB0_13 Depth 2
83+
; CHECK-NEXT: ; Child Loop BB0_17 Depth 2
8884
; CHECK-NEXT: s_and_saveexec_b64 s[8:9], s[4:5]
89-
; CHECK-NEXT: s_cbranch_execz .LBB0_15
90-
; CHECK-NEXT: ; %bb.13: ; %while.cond.loop-memcpy-expansion2_crit_edge
91-
; CHECK-NEXT: ; in Loop: Header=BB0_12 Depth=1
92-
; CHECK-NEXT: flat_load_dwordx4 v[2:5], v[8:9]
85+
; CHECK-NEXT: s_cbranch_execz .LBB0_14
86+
; CHECK-NEXT: ; %bb.12: ; %loop-memcpy-expansion2.preheader
87+
; CHECK-NEXT: ; in Loop: Header=BB0_11 Depth=1
9388
; CHECK-NEXT: s_mov_b64 s[10:11], 0
9489
; CHECK-NEXT: s_mov_b64 s[12:13], 0
95-
; CHECK-NEXT: s_waitcnt vmcnt(0)
96-
; CHECK-NEXT: .LBB0_14: ; %loop-memcpy-expansion2
97-
; CHECK-NEXT: ; Parent Loop BB0_12 Depth=1
90+
; CHECK-NEXT: .LBB0_13: ; %loop-memcpy-expansion2
91+
; CHECK-NEXT: ; Parent Loop BB0_11 Depth=1
9892
; CHECK-NEXT: ; => This Inner Loop Header: Depth=2
99-
; CHECK-NEXT: v_mov_b32_e32 v15, s13
100-
; CHECK-NEXT: v_add_co_u32_e32 v14, vcc, s12, v10
93+
; CHECK-NEXT: v_mov_b32_e32 v6, s12
94+
; CHECK-NEXT: v_mov_b32_e32 v7, s13
95+
; CHECK-NEXT: flat_load_dwordx4 v[10:13], v[6:7]
96+
; CHECK-NEXT: v_add_co_u32_e32 v6, vcc, s12, v8
10197
; CHECK-NEXT: s_add_u32 s12, s12, 16
102-
; CHECK-NEXT: v_addc_co_u32_e32 v15, vcc, v11, v15, vcc
98+
; CHECK-NEXT: v_addc_co_u32_e32 v7, vcc, v9, v7, vcc
10399
; CHECK-NEXT: s_addc_u32 s13, s13, 0
104100
; CHECK-NEXT: v_cmp_ge_u64_e32 vcc, s[12:13], v[0:1]
105-
; CHECK-NEXT: s_waitcnt lgkmcnt(0)
106-
; CHECK-NEXT: flat_store_dwordx4 v[14:15], v[2:5]
107101
; CHECK-NEXT: s_or_b64 s[10:11], vcc, s[10:11]
102+
; CHECK-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
103+
; CHECK-NEXT: flat_store_dwordx4 v[6:7], v[10:13]
108104
; CHECK-NEXT: s_andn2_b64 exec, exec, s[10:11]
109-
; CHECK-NEXT: s_cbranch_execnz .LBB0_14
110-
; CHECK-NEXT: .LBB0_15: ; %Flow15
111-
; CHECK-NEXT: ; in Loop: Header=BB0_12 Depth=1
105+
; CHECK-NEXT: s_cbranch_execnz .LBB0_13
106+
; CHECK-NEXT: .LBB0_14: ; %Flow15
107+
; CHECK-NEXT: ; in Loop: Header=BB0_11 Depth=1
112108
; CHECK-NEXT: s_or_b64 exec, exec, s[8:9]
113109
; CHECK-NEXT: s_mov_b64 s[8:9], -1
114-
; CHECK-NEXT: s_cbranch_execz .LBB0_11
115-
; CHECK-NEXT: ; %bb.16: ; %loop-memcpy-residual-header5
116-
; CHECK-NEXT: ; in Loop: Header=BB0_12 Depth=1
110+
; CHECK-NEXT: s_cbranch_execz .LBB0_10
111+
; CHECK-NEXT: ; %bb.15: ; %loop-memcpy-residual-header5
112+
; CHECK-NEXT: ; in Loop: Header=BB0_11 Depth=1
117113
; CHECK-NEXT: s_and_saveexec_b64 s[8:9], s[6:7]
118114
; CHECK-NEXT: s_xor_b64 s[10:11], exec, s[8:9]
119-
; CHECK-NEXT: s_cbranch_execz .LBB0_10
120-
; CHECK-NEXT: ; %bb.17: ; %loop-memcpy-residual-header5.loop-memcpy-residual4_crit_edge
121-
; CHECK-NEXT: ; in Loop: Header=BB0_12 Depth=1
122-
; CHECK-NEXT: flat_load_ubyte v2, v[8:9]
115+
; CHECK-NEXT: s_cbranch_execz .LBB0_9
116+
; CHECK-NEXT: ; %bb.16: ; %loop-memcpy-residual4.preheader
117+
; CHECK-NEXT: ; in Loop: Header=BB0_11 Depth=1
123118
; CHECK-NEXT: s_mov_b64 s[12:13], 0
124119
; CHECK-NEXT: s_mov_b64 s[14:15], 0
125-
; CHECK-NEXT: s_waitcnt vmcnt(0)
126-
; CHECK-NEXT: .LBB0_18: ; %loop-memcpy-residual4
127-
; CHECK-NEXT: ; Parent Loop BB0_12 Depth=1
120+
; CHECK-NEXT: .LBB0_17: ; %loop-memcpy-residual4
121+
; CHECK-NEXT: ; Parent Loop BB0_11 Depth=1
128122
; CHECK-NEXT: ; => This Inner Loop Header: Depth=2
129-
; CHECK-NEXT: v_add_co_u32_e32 v3, vcc, s14, v12
123+
; CHECK-NEXT: v_mov_b32_e32 v10, s15
124+
; CHECK-NEXT: v_add_co_u32_e32 v6, vcc, s14, v0
125+
; CHECK-NEXT: v_addc_co_u32_e32 v7, vcc, v1, v10, vcc
126+
; CHECK-NEXT: flat_load_ubyte v11, v[6:7]
127+
; CHECK-NEXT: v_add_co_u32_e32 v6, vcc, s14, v4
130128
; CHECK-NEXT: s_add_u32 s14, s14, 1
131-
; CHECK-NEXT: v_mov_b32_e32 v4, s15
132129
; CHECK-NEXT: s_addc_u32 s15, s15, 0
133-
; CHECK-NEXT: v_cmp_ge_u64_e64 s[8:9], s[14:15], v[6:7]
134-
; CHECK-NEXT: v_addc_co_u32_e32 v4, vcc, v13, v4, vcc
130+
; CHECK-NEXT: v_cmp_ge_u64_e64 s[8:9], s[14:15], v[2:3]
131+
; CHECK-NEXT: v_addc_co_u32_e32 v7, vcc, v5, v10, vcc
135132
; CHECK-NEXT: s_or_b64 s[12:13], s[8:9], s[12:13]
136-
; CHECK-NEXT: s_waitcnt lgkmcnt(0)
137-
; CHECK-NEXT: flat_store_byte v[3:4], v2
133+
; CHECK-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
134+
; CHECK-NEXT: flat_store_byte v[6:7], v11
138135
; CHECK-NEXT: s_andn2_b64 exec, exec, s[12:13]
139-
; CHECK-NEXT: s_cbranch_execnz .LBB0_18
140-
; CHECK-NEXT: ; %bb.19: ; %Flow
141-
; CHECK-NEXT: ; in Loop: Header=BB0_12 Depth=1
136+
; CHECK-NEXT: s_cbranch_execnz .LBB0_17
137+
; CHECK-NEXT: ; %bb.18: ; %Flow
138+
; CHECK-NEXT: ; in Loop: Header=BB0_11 Depth=1
142139
; CHECK-NEXT: s_or_b64 exec, exec, s[12:13]
143-
; CHECK-NEXT: s_branch .LBB0_10
144-
; CHECK-NEXT: .LBB0_20: ; %DummyReturnBlock
140+
; CHECK-NEXT: s_branch .LBB0_9
141+
; CHECK-NEXT: .LBB0_19: ; %DummyReturnBlock
145142
; CHECK-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
146143
; CHECK-NEXT: s_setpc_b64 s[30:31]
147144
entry:

‎llvm/test/Transforms/InstCombine/store.ll

+2-1
Original file line numberDiff line numberDiff line change
@@ -49,7 +49,8 @@ define void @test2(ptr %P) {
4949

5050
define void @store_at_gep_off_null_inbounds(i64 %offset) {
5151
; CHECK-LABEL: @store_at_gep_off_null_inbounds(
52-
; CHECK-NEXT: store i32 poison, ptr null, align 4
52+
; CHECK-NEXT: [[PTR:%.*]] = getelementptr inbounds i32, ptr null, i64 [[OFFSET:%.*]]
53+
; CHECK-NEXT: store i32 poison, ptr [[PTR]], align 4
5354
; CHECK-NEXT: ret void
5455
;
5556
%ptr = getelementptr inbounds i32, ptr null, i64 %offset

‎llvm/test/Transforms/InstSimplify/gep.ll

+8-4
Original file line numberDiff line numberDiff line change
@@ -389,7 +389,8 @@ define i64 @gep_array_of_scalable_vectors_ptrdiff(ptr %ptr) {
389389

390390
define ptr @gep_null_inbounds(i64 %idx) {
391391
; CHECK-LABEL: @gep_null_inbounds(
392-
; CHECK-NEXT: ret ptr null
392+
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i8, ptr null, i64 [[IDX:%.*]]
393+
; CHECK-NEXT: ret ptr [[GEP]]
393394
;
394395
%gep = getelementptr inbounds i8, ptr null, i64 %idx
395396
ret ptr %gep
@@ -415,23 +416,26 @@ define ptr @gep_null_defined(i64 %idx) null_pointer_is_valid {
415416

416417
define ptr @gep_null_inbounds_different_type(i64 %idx1, i64 %idx2) {
417418
; CHECK-LABEL: @gep_null_inbounds_different_type(
418-
; CHECK-NEXT: ret ptr null
419+
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [0 x i8], ptr null, i64 [[IDX1:%.*]], i64 [[IDX2:%.*]]
420+
; CHECK-NEXT: ret ptr [[GEP]]
419421
;
420422
%gep = getelementptr inbounds [0 x i8], ptr null, i64 %idx1, i64 %idx2
421423
ret ptr %gep
422424
}
423425

424426
define <2 x ptr> @gep_inbounds_null_vec(i64 %idx) {
425427
; CHECK-LABEL: @gep_inbounds_null_vec(
426-
; CHECK-NEXT: ret <2 x ptr> zeroinitializer
428+
; CHECK-NEXT: [[P:%.*]] = getelementptr inbounds i8, <2 x ptr> zeroinitializer, i64 [[IDX:%.*]]
429+
; CHECK-NEXT: ret <2 x ptr> [[P]]
427430
;
428431
%p = getelementptr inbounds i8, <2 x ptr> zeroinitializer, i64 %idx
429432
ret <2 x ptr> %p
430433
}
431434

432435
define <2 x ptr> @gep_inbounds_null_vec_broadcast(<2 x i64> %idx) {
433436
; CHECK-LABEL: @gep_inbounds_null_vec_broadcast(
434-
; CHECK-NEXT: ret <2 x ptr> zeroinitializer
437+
; CHECK-NEXT: [[P:%.*]] = getelementptr inbounds i8, ptr null, <2 x i64> [[IDX:%.*]]
438+
; CHECK-NEXT: ret <2 x ptr> [[P]]
435439
;
436440
%p = getelementptr inbounds i8, ptr null, <2 x i64> %idx
437441
ret <2 x ptr> %p

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