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96 lines
4.2 KiB
YAML
96 lines
4.2 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 4
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# RUN: llc -mtriple=arm64-apple-macosx -mcpu=apple-m1 -stress-regalloc=4 -verify-regalloc -run-pass=greedy -o - %s | FileCheck %s
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# RUN: llc -mtriple=arm64-apple-macosx -mcpu=apple-m1 -stress-regalloc=4 -verify-regalloc -passes=greedy -o - %s | FileCheck %s
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--- |
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define void @inst_stores_to_dead_spill_implicit_def_impdef() {
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ret void
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}
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define void @inst_stores_to_dead_spill_movimm_impdef() {
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ret void
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}
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declare void @foo(ptr, i32, ...)
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...
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# The IMPLICIT_DEf has an implicit-def of a different virtual register
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# than the main def, so it should not be unconditionally treated as
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# rematerializable.
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---
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name: inst_stores_to_dead_spill_implicit_def_impdef
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tracksRegLiveness: true
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frameInfo:
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adjustsStack: true
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hasCalls: true
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body: |
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bb.0:
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liveins: $x0, $x1
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; CHECK-LABEL: name: inst_stores_to_dead_spill_implicit_def_impdef
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; CHECK: liveins: $x0, $x1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: STRXui $x0, %stack.0, 0 :: (store (s64) into %stack.0)
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; CHECK-NEXT: dead undef [[COPY:%[0-9]+]].sub_32:gpr64 = COPY $x1
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; CHECK-NEXT: dead undef [[DEF:%[0-9]+]].sub_32:gpr64 = IMPLICIT_DEF implicit-def %6
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; CHECK-NEXT: STRXui %6, %stack.1, 0 :: (store (s64) into %stack.1)
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; CHECK-NEXT: ADJCALLSTACKDOWN 8, 0, implicit-def dead $sp, implicit $sp
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; CHECK-NEXT: BL @foo, csr_darwin_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp
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; CHECK-NEXT: ADJCALLSTACKUP 8, 0, implicit-def dead $sp, implicit $sp
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; CHECK-NEXT: [[LDRXui:%[0-9]+]]:gpr64common = LDRXui %stack.0, 0 :: (load (s64) from %stack.0)
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; CHECK-NEXT: [[LDRXui1:%[0-9]+]]:gpr64 = LDRXui %stack.1, 0 :: (load (s64) from %stack.1)
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; CHECK-NEXT: STRXui [[LDRXui1]], [[LDRXui]], 1 :: (store (s64) into stack + 8)
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; CHECK-NEXT: STRXui undef %8:gpr64, [[LDRXui]], 0 :: (store (s64) into stack)
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; CHECK-NEXT: RET_ReallyLR
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%0:gpr64sp = COPY $x0
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undef %1.sub_32:gpr64 = COPY $x1
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undef %2.sub_32:gpr64 = IMPLICIT_DEF implicit-def %1
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ADJCALLSTACKDOWN 8, 0, implicit-def dead $sp, implicit $sp
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BL @foo, csr_darwin_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp
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ADJCALLSTACKUP 8, 0, implicit-def dead $sp, implicit $sp
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STRXui %1, %0, 1 :: (store (s64) into stack + 8)
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STRXui undef %1, %0, 0 :: (store (s64) into stack)
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RET_ReallyLR
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...
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# Same function, except with a rematerializable mov imm instead of
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# IMPLICIT_DEF
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---
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name: inst_stores_to_dead_spill_movimm_impdef
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tracksRegLiveness: true
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frameInfo:
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adjustsStack: true
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hasCalls: true
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body: |
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bb.0:
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liveins: $x0, $x1
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; CHECK-LABEL: name: inst_stores_to_dead_spill_movimm_impdef
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; CHECK: liveins: $x0, $x1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: STRXui $x0, %stack.0, 0 :: (store (s64) into %stack.0)
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; CHECK-NEXT: dead undef [[COPY:%[0-9]+]].sub_32:gpr64 = COPY $x1
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; CHECK-NEXT: dead undef [[MOVi32imm:%[0-9]+]].sub_32:gpr64 = MOVi32imm 4, implicit-def %6
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; CHECK-NEXT: STRXui %6, %stack.1, 0 :: (store (s64) into %stack.1)
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; CHECK-NEXT: ADJCALLSTACKDOWN 8, 0, implicit-def dead $sp, implicit $sp
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; CHECK-NEXT: BL @foo, csr_darwin_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp
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; CHECK-NEXT: ADJCALLSTACKUP 8, 0, implicit-def dead $sp, implicit $sp
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; CHECK-NEXT: [[LDRXui:%[0-9]+]]:gpr64common = LDRXui %stack.0, 0 :: (load (s64) from %stack.0)
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; CHECK-NEXT: [[LDRXui1:%[0-9]+]]:gpr64 = LDRXui %stack.1, 0 :: (load (s64) from %stack.1)
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; CHECK-NEXT: STRXui [[LDRXui1]], [[LDRXui]], 1 :: (store (s64) into stack + 8)
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; CHECK-NEXT: STRXui undef %8:gpr64, [[LDRXui]], 0 :: (store (s64) into stack)
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; CHECK-NEXT: RET_ReallyLR
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%0:gpr64sp = COPY $x0
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undef %1.sub_32:gpr64 = COPY $x1
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undef %2.sub_32:gpr64 = MOVi32imm 4, implicit-def %1
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ADJCALLSTACKDOWN 8, 0, implicit-def dead $sp, implicit $sp
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BL @foo, csr_darwin_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp
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ADJCALLSTACKUP 8, 0, implicit-def dead $sp, implicit $sp
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STRXui %1, %0, 1 :: (store (s64) into stack + 8)
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STRXui undef %1, %0, 0 :: (store (s64) into stack)
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RET_ReallyLR
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...
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