lib/Target/AArch64/GISel/select-ssubo.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -verify-machineinstrs -mtriple aarch64-unknown-uknown -global-isel -run-pass=instruction-select %s -o - | FileCheck %s

...
---
name:            ssubo_s32
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $w0, $w1, $x2

    ; CHECK-LABEL: name: ssubo_s32
    ; CHECK: liveins: $w0, $w1, $x2
    ; CHECK: %reg0:gpr32 = COPY $w0
    ; CHECK: %reg1:gpr32 = COPY $w1
    ; CHECK: %ssubo:gpr32 = SUBSWrr %reg0, %reg1, implicit-def $nzcv
    ; CHECK: [[CSINCWr:%[0-9]+]]:gpr32 = CSINCWr $wzr, $wzr, 7, implicit $nzcv
    ; CHECK: $w0 = COPY %ssubo
    ; CHECK: RET_ReallyLR implicit $w0
    %reg0:gpr(s32) = COPY $w0
    %reg1:gpr(s32) = COPY $w1
    %ssubo:gpr(s32), %4:gpr(s1) = G_SSUBO %reg0, %reg1
    $w0 = COPY %ssubo(s32)
    RET_ReallyLR implicit $w0

...
---
name:            ssubo_s64
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $x0, $x1, $x2

    ; CHECK-LABEL: name: ssubo_s64
    ; CHECK: liveins: $x0, $x1, $x2
    ; CHECK: %reg0:gpr64 = COPY $x0
    ; CHECK: %reg1:gpr64 = COPY $x1
    ; CHECK: %ssubo:gpr64 = SUBSXrr %reg0, %reg1, implicit-def $nzcv
    ; CHECK: [[CSINCWr:%[0-9]+]]:gpr32 = CSINCWr $wzr, $wzr, 7, implicit $nzcv
    ; CHECK: $x0 = COPY %ssubo
    ; CHECK: RET_ReallyLR implicit $x0
    %reg0:gpr(s64) = COPY $x0
    %reg1:gpr(s64) = COPY $x1
    %ssubo:gpr(s64), %4:gpr(s1) = G_SSUBO %reg0, %reg1
    $x0 = COPY %ssubo(s64)
    RET_ReallyLR implicit $x0

...
---
name:            ssubo_s32_imm
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $w0, $w1, $x2
    ; Check that we get SUBSWri when we can fold in a constant.
    ;
    ; CHECK-LABEL: name: ssubo_s32_imm
    ; CHECK: liveins: $w0, $w1, $x2
    ; CHECK: %copy:gpr32sp = COPY $w0
    ; CHECK: %ssubo:gpr32 = SUBSWri %copy, 16, 0, implicit-def $nzcv
    ; CHECK: %overflow:gpr32 = CSINCWr $wzr, $wzr, 7, implicit $nzcv
    ; CHECK: $w0 = COPY %ssubo
    ; CHECK: RET_ReallyLR implicit $w0
    %copy:gpr(s32) = COPY $w0
    %constant:gpr(s32) = G_CONSTANT i32 16
    %ssubo:gpr(s32), %overflow:gpr(s1) = G_SSUBO %copy, %constant
    $w0 = COPY %ssubo(s32)
    RET_ReallyLR implicit $w0

...
---
name:            ssubo_s32_shifted
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $w0, $w1, $x2
    ; Check that we get SUBSWrs when we can fold in a shift.
    ;
    ; CHECK-LABEL: name: ssubo_s32_shifted
    ; CHECK: liveins: $w0, $w1, $x2
    ; CHECK: %reg0:gpr32 = COPY $w0
    ; CHECK: %reg1:gpr32 = COPY $w1
    ; CHECK: %sub:gpr32 = SUBSWrs %reg0, %reg1, 16, implicit-def $nzcv
    ; CHECK: %overflow:gpr32 = CSINCWr $wzr, $wzr, 7, implicit $nzcv
    ; CHECK: $w0 = COPY %sub
    ; CHECK: RET_ReallyLR implicit $w0
    %reg0:gpr(s32) = COPY $w0
    %reg1:gpr(s32) = COPY $w1
    %constant:gpr(s32) = G_CONSTANT i32 16
    %shift:gpr(s32) = G_SHL %reg1(s32), %constant(s32)
    %sub:gpr(s32), %overflow:gpr(s1) = G_SSUBO %reg0, %shift
    $w0 = COPY %sub(s32)
    RET_ReallyLR implicit $w0

...
---
name:            ssubo_s32_neg_imm
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $w0, $w1, $x2
    ; Check that we get ADDSWri when we can fold in a negative constant.
    ;
    ; CHECK-LABEL: name: ssubo_s32_neg_imm
    ; CHECK: liveins: $w0, $w1, $x2
    ; CHECK: %copy:gpr32sp = COPY $w0
    ; CHECK: %sub:gpr32 = ADDSWri %copy, 16, 0, implicit-def $nzcv
    ; CHECK: %overflow:gpr32 = CSINCWr $wzr, $wzr, 7, implicit $nzcv
    ; CHECK: $w0 = COPY %sub
    ; CHECK: RET_ReallyLR implicit $w0
    %copy:gpr(s32) = COPY $w0
    %constant:gpr(s32) = G_CONSTANT i32 -16
    %sub:gpr(s32), %overflow:gpr(s1) = G_SSUBO %copy, %constant
    $w0 = COPY %sub(s32)
    RET_ReallyLR implicit $w0

...
---
name:            ssubo_arith_extended
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $w0, $x0
    ; Check that we get SUBSXrx.
    ; CHECK-LABEL: name: ssubo_arith_extended
    ; CHECK: liveins: $w0, $x0
    ; CHECK: %reg0:gpr64sp = COPY $x0
    ; CHECK: %reg1:gpr32 = COPY $w0
    ; CHECK: %sub:gpr64 = SUBSXrx %reg0, %reg1, 18, implicit-def $nzcv
    ; CHECK: %flags:gpr32 = CSINCWr $wzr, $wzr, 7, implicit $nzcv
    ; CHECK: $x0 = COPY %sub
    ; CHECK: RET_ReallyLR implicit $x0
    %reg0:gpr(s64) = COPY $x0
    %reg1:gpr(s32) = COPY $w0
    %ext:gpr(s64) = G_ZEXT %reg1(s32)
    %cst:gpr(s64) = G_CONSTANT i64 2
    %shift:gpr(s64) = G_SHL %ext, %cst(s64)
    %sub:gpr(s64), %flags:gpr(s1) = G_SSUBO %reg0, %shift
    $x0 = COPY %sub(s64)
    RET_ReallyLR implicit $x0