GlobalISel: Verify load/store has a pointer input

I expected this to be automatically verified, but it seems
nothing uses that the type index was declared as a "ptype"

llvm-svn: 352319
This commit is contained in:
Matt Arsenault 2019-01-27 15:57:23 +00:00
parent d35424a2b3
commit fdfb7d78f1
19 changed files with 137 additions and 62 deletions

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@ -1003,7 +1003,11 @@ void MachineVerifier::visitMachineInstrBefore(const MachineInstr *MI) {
case TargetOpcode::G_LOAD: case TargetOpcode::G_LOAD:
case TargetOpcode::G_STORE: case TargetOpcode::G_STORE:
case TargetOpcode::G_ZEXTLOAD: case TargetOpcode::G_ZEXTLOAD:
case TargetOpcode::G_SEXTLOAD: case TargetOpcode::G_SEXTLOAD: {
LLT PtrTy = MRI->getType(MI->getOperand(1).getReg());
if (!PtrTy.isPointer())
report("Generic memory instruction must access a pointer", MI);
// Generic loads and stores must have a single MachineMemOperand // Generic loads and stores must have a single MachineMemOperand
// describing that access. // describing that access.
if (!MI->hasOneMemOperand()) { if (!MI->hasOneMemOperand()) {
@ -1021,6 +1025,7 @@ void MachineVerifier::visitMachineInstrBefore(const MachineInstr *MI) {
} }
break; break;
}
case TargetOpcode::G_PHI: { case TargetOpcode::G_PHI: {
LLT DstTy = MRI->getType(MI->getOperand(0).getReg()); LLT DstTy = MRI->getType(MI->getOperand(0).getReg());
if (!DstTy.isValid() || if (!DstTy.isValid() ||

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@ -21,7 +21,7 @@ body: |
%1:vgpr(s32) = COPY $vgpr0 %1:vgpr(s32) = COPY $vgpr0
; GCN: [[VGPR1:%[0-9]+]]:vgpr_32 = COPY $vgpr1 ; GCN: [[VGPR1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
%2:vgpr(s32) = COPY $vgpr1 %2:vgpr(s32) = COPY $vgpr1
%3:vgpr(s64) = COPY $vgpr3_vgpr4 %3:vgpr(p1) = COPY $vgpr3_vgpr4
; cvt_pkrtz vs ; cvt_pkrtz vs
; GCN: V_CVT_PKRTZ_F16_F32_e64 0, [[VGPR0]], 0, [[SGPR0]] ; GCN: V_CVT_PKRTZ_F16_F32_e64 0, [[VGPR0]], 0, [[SGPR0]]
@ -38,8 +38,8 @@ body: |
%7:vgpr(s32) = G_BITCAST %4 %7:vgpr(s32) = G_BITCAST %4
%8:vgpr(s32) = G_BITCAST %5 %8:vgpr(s32) = G_BITCAST %5
%9:vgpr(s32) = G_BITCAST %6 %9:vgpr(s32) = G_BITCAST %6
G_STORE %7, %3 :: (store 4 into %ir.global0) G_STORE %7, %3 :: (store 4 into %ir.global0, addrspace 1)
G_STORE %8, %3 :: (store 4 into %ir.global0) G_STORE %8, %3 :: (store 4 into %ir.global0, addrspace 1)
G_STORE %9, %3 :: (store 4 into %ir.global0) G_STORE %9, %3 :: (store 4 into %ir.global0, addrspace 1)
... ...
--- ---

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@ -20,7 +20,7 @@ body: |
%0:sgpr(s32) = COPY $sgpr0 %0:sgpr(s32) = COPY $sgpr0
%1:sgpr(s32) = COPY $sgpr1 %1:sgpr(s32) = COPY $sgpr1
%2:vgpr(s32) = COPY $vgpr0 %2:vgpr(s32) = COPY $vgpr0
%3:vgpr(s64) = COPY $vgpr3_vgpr4 %3:vgpr(p1) = COPY $vgpr3_vgpr4
; GCN: [[C1:%[0-9]+]]:sreg_32_xm0 = S_MOV_B32 1 ; GCN: [[C1:%[0-9]+]]:sreg_32_xm0 = S_MOV_B32 1
; GCN: [[C4096:%[0-9]+]]:sreg_32_xm0 = S_MOV_B32 4096 ; GCN: [[C4096:%[0-9]+]]:sreg_32_xm0 = S_MOV_B32 4096
@ -80,7 +80,7 @@ body: |
%17:vgpr(s32) = G_ASHR %16, %5 %17:vgpr(s32) = G_ASHR %16, %5
G_STORE %17, %3 :: (store 4 into %ir.global0) G_STORE %17, %3 :: (store 4 into %ir.global0, addrspace 1)
... ...
--- ---

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@ -18,9 +18,9 @@ body: |
bb.0: bb.0:
liveins: $sgpr0, $vgpr3_vgpr4 liveins: $sgpr0, $vgpr3_vgpr4
%0:vgpr(s32) = COPY $vgpr0 %0:vgpr(s32) = COPY $vgpr0
%1:vgpr(s64) = COPY $vgpr3_vgpr4 %1:vgpr(p1) = COPY $vgpr3_vgpr4
%2:vgpr(<2 x s16>) = G_BITCAST %0 %2:vgpr(<2 x s16>) = G_BITCAST %0
%3:vgpr(s32) = G_BITCAST %2 %3:vgpr(s32) = G_BITCAST %2
G_STORE %3, %1 :: (store 4 into %ir.global0) G_STORE %3, %1 :: (store 4 into %ir.global0, addrspace 1)
... ...
--- ---

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@ -14,8 +14,8 @@ body: |
bb.0: bb.0:
liveins: $vgpr0_vgpr1, $vgpr2_vgpr3 liveins: $vgpr0_vgpr1, $vgpr2_vgpr3
; GCN-LABEL: name: constant ; GCN-LABEL: name: constant
%0:vgpr(s64) = COPY $vgpr0_vgpr1 %0:vgpr(p1) = COPY $vgpr0_vgpr1
%1:vgpr(s64) = COPY $vgpr2_vgpr3 %1:vgpr(p1) = COPY $vgpr2_vgpr3
; GCN: %{{[0-9]+}}:sreg_32 = S_MOV_B32 1 ; GCN: %{{[0-9]+}}:sreg_32 = S_MOV_B32 1
%2:sreg_32(s32) = G_CONSTANT i32 1 %2:sreg_32(s32) = G_CONSTANT i32 1
@ -49,13 +49,13 @@ body: |
; GCN: %{{[0-9]+}}:vreg_64 = REG_SEQUENCE [[LO3]], %subreg.sub0, [[HI3]], %subreg.sub1 ; GCN: %{{[0-9]+}}:vreg_64 = REG_SEQUENCE [[LO3]], %subreg.sub0, [[HI3]], %subreg.sub1
%9:vgpr(s64) = G_FCONSTANT double 1.0 %9:vgpr(s64) = G_FCONSTANT double 1.0
G_STORE %2, %0 :: (volatile store 4 into %ir.global0) G_STORE %2, %0 :: (volatile store 4 into %ir.global0, addrspace 1)
G_STORE %4, %0 :: (volatile store 4 into %ir.global0) G_STORE %4, %0 :: (volatile store 4 into %ir.global0, addrspace 1)
G_STORE %6, %0 :: (volatile store 4 into %ir.global0) G_STORE %6, %0 :: (volatile store 4 into %ir.global0, addrspace 1)
G_STORE %8, %0 :: (volatile store 4 into %ir.global0) G_STORE %8, %0 :: (volatile store 4 into %ir.global0, addrspace 1)
G_STORE %3, %1 :: (volatile store 8 into %ir.global1) G_STORE %3, %1 :: (volatile store 8 into %ir.global1, addrspace 1)
G_STORE %5, %1 :: (volatile store 8 into %ir.global1) G_STORE %5, %1 :: (volatile store 8 into %ir.global1, addrspace 1)
G_STORE %7, %1 :: (volatile store 8 into %ir.global1) G_STORE %7, %1 :: (volatile store 8 into %ir.global1, addrspace 1)
G_STORE %9, %1 :: (volatile store 8 into %ir.global1) G_STORE %9, %1 :: (volatile store 8 into %ir.global1, addrspace 1)
... ...
--- ---

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@ -19,8 +19,8 @@ body: |
; GCN: [[COPY1:%[0-9]+]]:vreg_64 = COPY [[COPY]] ; GCN: [[COPY1:%[0-9]+]]:vreg_64 = COPY [[COPY]]
; GCN: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF ; GCN: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
; GCN: FLAT_STORE_DWORD [[COPY1]], [[DEF]], 0, 0, 0, implicit $exec, implicit $flat_scr ; GCN: FLAT_STORE_DWORD [[COPY1]], [[DEF]], 0, 0, 0, implicit $exec, implicit $flat_scr
%0:sgpr(s64) = COPY $sgpr2_sgpr3 %0:sgpr(p1) = COPY $sgpr2_sgpr3
%1:vgpr(s64) = COPY %0 %1:vgpr(p1) = COPY %0
%2:vgpr(s32) = G_IMPLICIT_DEF %2:vgpr(s32) = G_IMPLICIT_DEF
G_STORE %2, %1 :: (store 4 into %ir.global0) G_STORE %2, %1 :: (store 4 into %ir.global0)
... ...

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@ -16,7 +16,7 @@ body: |
%0:sgpr(s32) = COPY $sgpr0 %0:sgpr(s32) = COPY $sgpr0
%1:vgpr(s32) = COPY $vgpr0 %1:vgpr(s32) = COPY $vgpr0
%2:vgpr(s32) = COPY $vgpr1 %2:vgpr(s32) = COPY $vgpr1
%3:vgpr(s64) = COPY $vgpr3_vgpr4 %3:vgpr(p1) = COPY $vgpr3_vgpr4
; fadd vs ; fadd vs
; GCN: V_ADD_F32_e64 ; GCN: V_ADD_F32_e64

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@ -16,7 +16,7 @@ body: |
%0:sgpr(s32) = COPY $sgpr0 %0:sgpr(s32) = COPY $sgpr0
%1:vgpr(s32) = COPY $vgpr0 %1:vgpr(s32) = COPY $vgpr0
%2:vgpr(s32) = COPY $vgpr1 %2:vgpr(s32) = COPY $vgpr1
%3:vgpr(s64) = COPY $vgpr3_vgpr4 %3:vgpr(p1) = COPY $vgpr3_vgpr4
; fmul vs ; fmul vs
; GCN: V_MUL_F32_e64 ; GCN: V_MUL_F32_e64
@ -30,8 +30,8 @@ body: |
; GCN: V_MUL_F32_e64 ; GCN: V_MUL_F32_e64
%6:vgpr(s32) = G_FMUL %1, %2 %6:vgpr(s32) = G_FMUL %1, %2
G_STORE %4, %3 :: (store 4 into %ir.global0) G_STORE %4, %3 :: (store 4 into %ir.global0, addrspace 1)
G_STORE %5, %3 :: (store 4 into %ir.global0) G_STORE %5, %3 :: (store 4 into %ir.global0, addrspace 1)
G_STORE %6, %3 :: (store 4 into %ir.global0) G_STORE %6, %3 :: (store 4 into %ir.global0, addrspace 1)
... ...
--- ---

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@ -20,7 +20,7 @@ body: |
; GCN: [[VGPR:%[0-9]+]]:vgpr_32 = COPY $vgpr0 ; GCN: [[VGPR:%[0-9]+]]:vgpr_32 = COPY $vgpr0
%1:vgpr(s32) = COPY $vgpr0 %1:vgpr(s32) = COPY $vgpr0
%2:vgpr(s64) = COPY $vgpr3_vgpr4 %2:vgpr(p1) = COPY $vgpr3_vgpr4
; fptoui s ; fptoui s
; GCN: V_CVT_U32_F32_e64 0, [[SGPR]], 0, 0 ; GCN: V_CVT_U32_F32_e64 0, [[SGPR]], 0, 0

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@ -14,9 +14,9 @@ body: |
; GCN: [[COPY:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4 ; GCN: [[COPY:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
; GCN: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF ; GCN: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
; GCN: FLAT_STORE_DWORD [[COPY]], [[DEF]], 0, 0, 0, implicit $exec, implicit $flat_scr ; GCN: FLAT_STORE_DWORD [[COPY]], [[DEF]], 0, 0, 0, implicit $exec, implicit $flat_scr
%0:vgpr(s64) = COPY $vgpr3_vgpr4 %0:vgpr(p1) = COPY $vgpr3_vgpr4
%1:vgpr(s32) = G_IMPLICIT_DEF %1:vgpr(s32) = G_IMPLICIT_DEF
G_STORE %1, %0 :: (store 4) G_STORE %1, %0 :: (store 4, addrspace 1)
... ...
--- ---
@ -31,9 +31,9 @@ body: |
; GCN: [[COPY:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4 ; GCN: [[COPY:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
; GCN: [[DEF:%[0-9]+]]:vreg_64 = IMPLICIT_DEF ; GCN: [[DEF:%[0-9]+]]:vreg_64 = IMPLICIT_DEF
; GCN: FLAT_STORE_DWORDX2 [[COPY]], [[DEF]], 0, 0, 0, implicit $exec, implicit $flat_scr ; GCN: FLAT_STORE_DWORDX2 [[COPY]], [[DEF]], 0, 0, 0, implicit $exec, implicit $flat_scr
%0:vgpr(s64) = COPY $vgpr3_vgpr4 %0:vgpr(p1) = COPY $vgpr3_vgpr4
%1:vgpr(s64) = G_IMPLICIT_DEF %1:vgpr(s64) = G_IMPLICIT_DEF
G_STORE %1, %0 :: (store 8) G_STORE %1, %0 :: (store 8, addrspace 1)
--- ---
--- ---
@ -63,7 +63,7 @@ body: |
; GCN: FLAT_STORE_DWORD [[DEF]], [[V_MOV_B32_e32_]], 0, 0, 0, implicit $exec, implicit $flat_scr ; GCN: FLAT_STORE_DWORD [[DEF]], [[V_MOV_B32_e32_]], 0, 0, 0, implicit $exec, implicit $flat_scr
%0:vgpr(p1) = G_IMPLICIT_DEF %0:vgpr(p1) = G_IMPLICIT_DEF
%1:vgpr(s32) = G_CONSTANT 4 %1:vgpr(s32) = G_CONSTANT 4
G_STORE %1, %0 :: (store 4) G_STORE %1, %0 :: (store 4, addrspace 1)
... ...
--- ---
@ -79,7 +79,7 @@ body: |
; GCN: FLAT_STORE_DWORD [[DEF]], [[V_MOV_B32_e32_]], 0, 0, 0, implicit $exec, implicit $flat_scr ; GCN: FLAT_STORE_DWORD [[DEF]], [[V_MOV_B32_e32_]], 0, 0, 0, implicit $exec, implicit $flat_scr
%0:vgpr(p3) = G_IMPLICIT_DEF %0:vgpr(p3) = G_IMPLICIT_DEF
%1:vgpr(s32) = G_CONSTANT 4 %1:vgpr(s32) = G_CONSTANT 4
G_STORE %1, %0 :: (store 4) G_STORE %1, %0 :: (store 4, addrspace 1)
... ...
--- ---
@ -95,5 +95,5 @@ body: |
; GCN: FLAT_STORE_DWORD [[DEF]], [[V_MOV_B32_e32_]], 0, 0, 0, implicit $exec, implicit $flat_scr ; GCN: FLAT_STORE_DWORD [[DEF]], [[V_MOV_B32_e32_]], 0, 0, 0, implicit $exec, implicit $flat_scr
%0:vgpr(p4) = G_IMPLICIT_DEF %0:vgpr(p4) = G_IMPLICIT_DEF
%1:vgpr(s32) = G_CONSTANT 4 %1:vgpr(s32) = G_CONSTANT 4
G_STORE %1, %0 :: (store 4) G_STORE %1, %0 :: (store 4, addrspace 1)
... ...

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@ -19,7 +19,7 @@ body: |
%0:sgpr(s32) = COPY $sgpr0 %0:sgpr(s32) = COPY $sgpr0
%1:vgpr(s32) = COPY $vgpr0 %1:vgpr(s32) = COPY $vgpr0
%2:vgpr(s32) = COPY $vgpr1 %2:vgpr(s32) = COPY $vgpr1
%3:vgpr(s64) = COPY $vgpr3_vgpr4 %3:vgpr(p1) = COPY $vgpr3_vgpr4
; GCN: [[SGPR64_0:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11 ; GCN: [[SGPR64_0:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
; GCN: [[VGPR64_0:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11 ; GCN: [[VGPR64_0:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11

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@ -19,7 +19,7 @@ body: |
%0:sgpr(s32) = COPY $sgpr0 %0:sgpr(s32) = COPY $sgpr0
%1:vgpr(s32) = COPY $vgpr0 %1:vgpr(s32) = COPY $vgpr0
%2:vgpr(s32) = COPY $vgpr1 %2:vgpr(s32) = COPY $vgpr1
%3:vgpr(s64) = COPY $vgpr3_vgpr4 %3:vgpr(p1) = COPY $vgpr3_vgpr4
; GCN: [[SGPR64_0:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11 ; GCN: [[SGPR64_0:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
; GCN: [[VGPR64_0:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11 ; GCN: [[VGPR64_0:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11

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@ -19,7 +19,7 @@ body: |
%0:sgpr(s32) = COPY $sgpr0 %0:sgpr(s32) = COPY $sgpr0
%1:sgpr(s32) = COPY $sgpr1 %1:sgpr(s32) = COPY $sgpr1
%2:vgpr(s32) = COPY $vgpr0 %2:vgpr(s32) = COPY $vgpr0
%3:vgpr(s64) = COPY $vgpr3_vgpr4 %3:vgpr(p1) = COPY $vgpr3_vgpr4
%4:sgpr(s32) = G_CONSTANT i32 1 %4:sgpr(s32) = G_CONSTANT i32 1
%5:sgpr(s32) = G_CONSTANT i32 4096 %5:sgpr(s32) = G_CONSTANT i32 4096
@ -39,7 +39,7 @@ body: |
; GCN: [[VV:%[0-9]+]]:vgpr_32 = V_OR_B32_e32 [[SV]], [[VGPR0]] ; GCN: [[VV:%[0-9]+]]:vgpr_32 = V_OR_B32_e32 [[SV]], [[VGPR0]]
%9:vgpr(s32) = G_OR %8, %2 %9:vgpr(s32) = G_OR %8, %2
G_STORE %9, %3 :: (store 4 into %ir.global0) G_STORE %9, %3 :: (store 4 into %ir.global0, addrspace 1)
... ...
--- ---

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@ -20,7 +20,7 @@ body: |
; GCN: [[VGPR:%[0-9]+]]:vgpr_32 = COPY $vgpr0 ; GCN: [[VGPR:%[0-9]+]]:vgpr_32 = COPY $vgpr0
%1:vgpr(s32) = COPY $vgpr0 %1:vgpr(s32) = COPY $vgpr0
%2:vgpr(s64) = COPY $vgpr3_vgpr4 %2:vgpr(p1) = COPY $vgpr3_vgpr4
; sitofp s ; sitofp s
; GCN: V_CVT_F32_I32_e64 [[SGPR]], 0, 0 ; GCN: V_CVT_F32_I32_e64 [[SGPR]], 0, 0

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@ -1,23 +0,0 @@
# RUN: not llc -mtriple=aarch64-none-linux-gnu -run-pass none -o - %s 2>&1 | FileCheck %s
# CHECK: *** Bad machine code: Generic extload must have a narrower memory type ***
# CHECK: *** Bad machine code: Generic extload must have a narrower memory type ***
# CHECK: *** Bad machine code: Generic extload must have a narrower memory type ***
# CHECK: *** Bad machine code: Generic extload must have a narrower memory type ***
# CHECK: *** Bad machine code: Generic instruction accessing memory must have one mem operand ***
# CHECK: *** Bad machine code: Generic instruction accessing memory must have one mem operand ***
---
name: invalid_extload_memory_sizes
body: |
bb.0:
%0:_(p0) = COPY $x0
%1:_(s64) = G_ZEXTLOAD %0(p0) :: (load 8)
%2:_(s64) = G_ZEXTLOAD %0(p0) :: (load 16)
%3:_(s64) = G_SEXTLOAD %0(p0) :: (load 8)
%4:_(s64) = G_SEXTLOAD %0(p0) :: (load 16)
%5:_(s64) = G_ZEXTLOAD %0(p0)
%6:_(s64) = G_SEXTLOAD %0(p0)
...

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@ -0,0 +1,18 @@
#RUN: not llc -o - -global-isel -run-pass=none -verify-machineinstrs %s 2>&1 | FileCheck %s
# REQUIRES: global-isel, aarch64-registered-target
---
name: test_load
legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
liveins:
body: |
bb.0:
; CHECK: Bad machine code: Generic memory instruction must access a pointer
%0:_(s64) = G_CONSTANT i32 0
%1:_(s32) = G_LOAD %0 :: (load 4)
...

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@ -0,0 +1,28 @@
# RUN: not llc -o - -global-isel -run-pass=none -verify-machineinstrs %s 2>&1 | FileCheck %s
# REQUIRES: global-isel, aarch64-registered-target
---
name: test_sextload
legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
liveins:
body: |
bb.0:
; CHECK: Bad machine code: Generic memory instruction must access a pointer
%0:_(s64) = G_CONSTANT i32 0
%1:_(s32) = G_SEXTLOAD %0 :: (load 1)
; CHECK: *** Bad machine code: Generic instruction accessing memory must have one mem operand ***
%2:_(p0) = G_IMPLICIT_DEF
%3:_(s64) = G_SEXTLOAD %2
; CHECK: Bad machine code: Generic extload must have a narrower memory type
; CHECK: Bad machine code: Generic extload must have a narrower memory type
%4:_(s64) = G_SEXTLOAD %2 :: (load 8)
%5:_(s64) = G_SEXTLOAD %2 :: (load 16)
...

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@ -0,0 +1,19 @@
# RUN: not llc -o - -global-isel -run-pass=none -verify-machineinstrs %s 2>&1 | FileCheck %s
# REQUIRES: global-isel, aarch64-registered-target
---
name: test_store
legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
liveins:
body: |
bb.0:
; CHECK: Bad machine code: Generic memory instruction must access a pointer
%0:_(s64) = G_CONSTANT i32 0
%1:_(s32) = G_CONSTANT i32 1
G_STORE %1, %0 :: (store 4)
...

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@ -0,0 +1,28 @@
# RUN: not llc -o - -global-isel -run-pass=none -verify-machineinstrs %s 2>&1 | FileCheck %s
# REQUIRES: global-isel, aarch64-registered-target
---
name: test_zextload
legalized: true
regBankSelected: false
selected: false
tracksRegLiveness: true
liveins:
body: |
bb.0:
; CHECK: Bad machine code: Generic memory instruction must access a pointer
%0:_(s64) = G_CONSTANT i32 0
%1:_(s32) = G_ZEXTLOAD %0 :: (load 1)
; CHECK: *** Bad machine code: Generic instruction accessing memory must have one mem operand ***
%2:_(p0) = G_IMPLICIT_DEF
%3:_(s64) = G_ZEXTLOAD %2
; CHECK: Bad machine code: Generic extload must have a narrower memory type
; CHECK: Bad machine code: Generic extload must have a narrower memory type
%4:_(s64) = G_ZEXTLOAD %2 :: (load 8)
%5:_(s64) = G_ZEXTLOAD %2 :: (load 16)
...