llvm-project/llvm/test/CodeGen/AArch64/GlobalISel/select-xor.mir

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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -O0 -mtriple=aarch64-- -run-pass=instruction-select -verify-machineinstrs -global-isel %s -o - | FileCheck %s
--- |
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
define void @xor_s32_gpr() { ret void }
define void @xor_s64_gpr() { ret void }
define void @xor_constant_n1_s32_gpr() { ret void }
define void @xor_constant_n1_s64_gpr() { ret void }
define void @xor_constant_n1_s32_gpr_2bb() { ret void }
...
---
# Check that we select a 32-bit GPR G_XOR into EORWrr on GPR32.
# Also check that we constrain the register class of the COPY to GPR32.
name: xor_s32_gpr
legalized: true
regBankSelected: true
registers:
- { id: 0, class: gpr }
- { id: 1, class: gpr }
- { id: 2, class: gpr }
body: |
bb.0:
liveins: %w0, %w1
; CHECK-LABEL: name: xor_s32_gpr
; CHECK: registers:
; CHECK-NEXT: id: 0, class: gpr32
; CHECK-NEXT: id: 1, class: gpr32
; CHECK-NEXT: id: 2, class: gpr32
; CHECK: [[COPY:%[0-9]+]] = COPY %w0
; CHECK: [[COPY1:%[0-9]+]] = COPY %w1
; CHECK: [[EORWrr:%[0-9]+]] = EORWrr [[COPY]], [[COPY1]]
; CHECK: %w0 = COPY [[EORWrr]]
%0(s32) = COPY %w0
%1(s32) = COPY %w1
%2(s32) = G_XOR %0, %1
%w0 = COPY %2(s32)
...
---
# Same as xor_s64_gpr, for 64-bit operations.
name: xor_s64_gpr
legalized: true
regBankSelected: true
registers:
- { id: 0, class: gpr }
- { id: 1, class: gpr }
- { id: 2, class: gpr }
body: |
bb.0:
liveins: %x0, %x1
; CHECK-LABEL: name: xor_s64_gpr
; CHECK: registers:
; CHECK-NEXT: id: 0, class: gpr64
; CHECK-NEXT: id: 1, class: gpr64
; CHECK-NEXT: id: 2, class: gpr64
; CHECK: [[COPY:%[0-9]+]] = COPY %x0
; CHECK: [[COPY1:%[0-9]+]] = COPY %x1
; CHECK: [[EORXrr:%[0-9]+]] = EORXrr [[COPY]], [[COPY1]]
; CHECK: %x0 = COPY [[EORXrr]]
%0(s64) = COPY %x0
%1(s64) = COPY %x1
%2(s64) = G_XOR %0, %1
%x0 = COPY %2(s64)
...
---
# Check that we select a 32-bit GPR G_XOR into EORWrr on GPR32.
# Also check that we constrain the register class of the COPY to GPR32.
name: xor_constant_n1_s32_gpr
legalized: true
regBankSelected: true
registers:
- { id: 0, class: gpr }
- { id: 1, class: gpr }
- { id: 2, class: gpr }
body: |
bb.0:
liveins: %w0
; CHECK-LABEL: name: xor_constant_n1_s32_gpr
; CHECK: registers:
; CHECK-NEXT: id: 0, class: gpr32
; CHECK-NEXT: id: 1, class: gpr
; CHECK-NEXT: id: 2, class: gpr32
; CHECK: [[COPY:%[0-9]+]] = COPY %w0
; CHECK: [[ORNWrr:%[0-9]+]] = ORNWrr %wzr, [[COPY]]
; CHECK: %w0 = COPY [[ORNWrr]]
%0(s32) = COPY %w0
%1(s32) = G_CONSTANT i32 -1
%2(s32) = G_XOR %0, %1
%w0 = COPY %2(s32)
...
---
# Same as xor_constant_n1_s64_gpr, for 64-bit operations.
name: xor_constant_n1_s64_gpr
legalized: true
regBankSelected: true
registers:
- { id: 0, class: gpr }
- { id: 1, class: gpr }
- { id: 2, class: gpr }
body: |
bb.0:
liveins: %x0
; CHECK-LABEL: name: xor_constant_n1_s64_gpr
; CHECK: registers:
; CHECK-NEXT: id: 0, class: gpr64
; CHECK-NEXT: id: 1, class: gpr
; CHECK-NEXT: id: 2, class: gpr64
; CHECK: [[COPY:%[0-9]+]] = COPY %x0
; CHECK: [[ORNXrr:%[0-9]+]] = ORNXrr %xzr, [[COPY]]
; CHECK: %x0 = COPY [[ORNXrr]]
%0(s64) = COPY %x0
%1(s64) = G_CONSTANT i64 -1
%2(s64) = G_XOR %0, %1
%x0 = COPY %2(s64)
...
---
# Check that we can obtain constants from other basic blocks.
name: xor_constant_n1_s32_gpr_2bb
legalized: true
regBankSelected: true
registers:
- { id: 0, class: gpr }
- { id: 1, class: gpr }
- { id: 2, class: gpr }
body: |
; CHECK-LABEL: name: xor_constant_n1_s32_gpr_2bb
; CHECK: registers:
; CHECK-NEXT: id: 0, class: gpr32
; CHECK-NEXT: id: 1, class: gpr
; CHECK-NEXT: id: 2, class: gpr32
; CHECK: bb.0:
; CHECK: successors: %bb.1(0x80000000)
; CHECK: B %bb.1
; CHECK: bb.1:
; CHECK: [[COPY:%[0-9]+]] = COPY %w0
; CHECK: [[ORNWrr:%[0-9]+]] = ORNWrr %wzr, [[COPY]]
; CHECK: %w0 = COPY [[ORNWrr]]
bb.0:
liveins: %w0, %w1
successors: %bb.1
%1(s32) = G_CONSTANT i32 -1
G_BR %bb.1
bb.1:
%0(s32) = COPY %w0
%2(s32) = G_XOR %0, %1
%w0 = COPY %2(s32)
...