derek.holloway
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48 lines
2.0 KiB
YAML
48 lines
2.0 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
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# RUN: llc -mtriple=aarch64 -o - %s -run-pass machine-sink | FileCheck %s
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# we want to fuse an addition with lsl into an ldr but we have to be careful with
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# the shift distance: we can only represent specific shift distances: e.g: 3
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# but nothing large like 32
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--- |
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define dso_local i64 @fuse_shift_add_into_addr_mode() {
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entry:
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ret i64 0
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}
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---
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name: fuse_shift_add_into_addr_mode
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body: |
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bb.1.entry:
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liveins: $x0, $x1
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; CHECK-LABEL: name: fuse_shift_add_into_addr_mode
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; CHECK: liveins: $x0, $x1
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gpr64common = COPY $x0
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:gpr64 = COPY $x1
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; CHECK-NEXT: [[LDRXroX:%[0-9]+]]:gpr64 = LDRXroX [[COPY]], [[COPY1]], 0, 1 :: (load (s64))
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; CHECK-NEXT: [[ADDXrs:%[0-9]+]]:gpr64common = ADDXrs [[COPY]], [[COPY1]], 5
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; CHECK-NEXT: [[LDRXui:%[0-9]+]]:gpr64 = LDRXui [[ADDXrs]], 0 :: (load (s64))
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; CHECK-NEXT: [[ADDXrs1:%[0-9]+]]:gpr64common = ADDXrs [[COPY]], [[COPY1]], 32
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; CHECK-NEXT: [[LDRXui1:%[0-9]+]]:gpr64 = LDRXui [[ADDXrs1]], 0 :: (load (s64))
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; CHECK-NEXT: [[ADDXrs2:%[0-9]+]]:gpr64common = ADDXrs [[COPY]], [[COPY1]], 35
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; CHECK-NEXT: [[LDRXui2:%[0-9]+]]:gpr64 = LDRXui [[ADDXrs1]], 0 :: (load (s64))
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; CHECK-NEXT: [[ADDXrs3:%[0-9]+]]:gpr64common = ADDXrs [[COPY]], [[COPY1]], 63
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; CHECK-NEXT: [[LDRXui3:%[0-9]+]]:gpr64 = LDRXui [[ADDXrs1]], 0 :: (load (s64))
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; CHECK-NEXT: RET_ReallyLR implicit $x0
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%0:gpr64 = COPY $x0
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%1:gpr64 = COPY $x1
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%2:gpr64common = ADDXrs %0, %1, 3
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%3:gpr64 = LDRXui %2, 0 :: (load (s64))
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%4:gpr64common = ADDXrs %0, %1, 5
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%5:gpr64 = LDRXui %4, 0 :: (load (s64))
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%6:gpr64common = ADDXrs %0, %1, 32
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%7:gpr64 = LDRXui %6, 0 :: (load (s64))
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%8:gpr64common = ADDXrs %0, %1, 35
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%9:gpr64 = LDRXui %6, 0 :: (load (s64))
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%10:gpr64common = ADDXrs %0, %1, 63
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%11:gpr64 = LDRXui %6, 0 :: (load (s64))
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RET_ReallyLR implicit $x0
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