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llvm/llvm/test/CodeGen/Mips/GlobalISel/regbankselect/float_args.mir 

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -O0 -mtriple=mipsel-linux-gnu -run-pass=regbankselect -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=FP32
# RUN: llc -O0 -mtriple=mipsel-linux-gnu -mattr=+fp64,+mips32r2 -run-pass=regbankselect -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=FP64

--- |

  define void @float_in_fpr() {entry: ret void}
  define void @double_in_fpr() {entry: ret void}
  define void @float_in_gpr() {entry: ret void}
  define void @double_in_gpr() {entry: ret void}
  define void @call_float_in_fpr() {entry: ret void}
  define void @call_double_in_fpr() {entry: ret void}
  define void @call_float_in_gpr() {entry: ret void}
  define void @call_double_in_gpr() {entry: ret void}

...
---
name:            float_in_fpr
alignment:       4
legalized:       true
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $f12, $f14

    ; FP32-LABEL: name: float_in_fpr
    ; FP32: liveins: $f12, $f14
    ; FP32: [[COPY:%[0-9]+]]:fprb(s32) = COPY $f14
    ; FP32: $f0 = COPY [[COPY]](s32)
    ; FP32: RetRA implicit $f0
    ; FP64-LABEL: name: float_in_fpr
    ; FP64: liveins: $f12, $f14
    ; FP64: [[COPY:%[0-9]+]]:fprb(s32) = COPY $f14
    ; FP64: $f0 = COPY [[COPY]](s32)
    ; FP64: RetRA implicit $f0
    %1:_(s32) = COPY $f14
    $f0 = COPY %1(s32)
    RetRA implicit $f0

...
---
name:            double_in_fpr
alignment:       4
legalized:       true
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $d6, $d7

    ; FP32-LABEL: name: double_in_fpr
    ; FP32: liveins: $d6, $d7
    ; FP32: [[COPY:%[0-9]+]]:fprb(s64) = COPY $d7
    ; FP32: $d0 = COPY [[COPY]](s64)
    ; FP32: RetRA implicit $d0
    ; FP64-LABEL: name: double_in_fpr
    ; FP64: liveins: $d6, $d7
    ; FP64: [[COPY:%[0-9]+]]:fprb(s64) = COPY $d7
    ; FP64: $d0 = COPY [[COPY]](s64)
    ; FP64: RetRA implicit $d0
    %1:_(s64) = COPY $d7
    $d0 = COPY %1(s64)
    RetRA implicit $d0

...
---
name:            float_in_gpr
alignment:       4
legalized:       true
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $a0, $a1

    ; FP32-LABEL: name: float_in_gpr
    ; FP32: liveins: $a0, $a1
    ; FP32: [[COPY:%[0-9]+]]:gprb(s32) = COPY $a1
    ; FP32: $f0 = COPY [[COPY]](s32)
    ; FP32: RetRA implicit $f0
    ; FP64-LABEL: name: float_in_gpr
    ; FP64: liveins: $a0, $a1
    ; FP64: [[COPY:%[0-9]+]]:gprb(s32) = COPY $a1
    ; FP64: $f0 = COPY [[COPY]](s32)
    ; FP64: RetRA implicit $f0
    %1:_(s32) = COPY $a1
    $f0 = COPY %1(s32)
    RetRA implicit $f0

...
---
name:            double_in_gpr
alignment:       4
legalized:       true
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $a0, $a2, $a3

    ; FP32-LABEL: name: double_in_gpr
    ; FP32: liveins: $a0, $a2, $a3
    ; FP32: [[COPY:%[0-9]+]]:gprb(s32) = COPY $a2
    ; FP32: [[COPY1:%[0-9]+]]:gprb(s32) = COPY $a3
    ; FP32: [[MV:%[0-9]+]]:fprb(s64) = G_MERGE_VALUES [[COPY]](s32), [[COPY1]](s32)
    ; FP32: $d0 = COPY [[MV]](s64)
    ; FP32: RetRA implicit $d0
    ; FP64-LABEL: name: double_in_gpr
    ; FP64: liveins: $a0, $a2, $a3
    ; FP64: [[COPY:%[0-9]+]]:gprb(s32) = COPY $a2
    ; FP64: [[COPY1:%[0-9]+]]:gprb(s32) = COPY $a3
    ; FP64: [[MV:%[0-9]+]]:fprb(s64) = G_MERGE_VALUES [[COPY]](s32), [[COPY1]](s32)
    ; FP64: $d0 = COPY [[MV]](s64)
    ; FP64: RetRA implicit $d0
    %2:_(s32) = COPY $a2
    %3:_(s32) = COPY $a3
    %1:_(s64) = G_MERGE_VALUES %2(s32), %3(s32)
    $d0 = COPY %1(s64)
    RetRA implicit $d0

...
---
name:            call_float_in_fpr
alignment:       4
legalized:       true
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $f12, $f14

    ; FP32-LABEL: name: call_float_in_fpr
    ; FP32: liveins: $f12, $f14
    ; FP32: [[COPY:%[0-9]+]]:fprb(s32) = COPY $f12
    ; FP32: [[COPY1:%[0-9]+]]:fprb(s32) = COPY $f14
    ; FP32: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
    ; FP32: $f12 = COPY [[COPY]](s32)
    ; FP32: $f14 = COPY [[COPY1]](s32)
    ; FP32: JAL @float_in_fpr, csr_o32, implicit-def $ra, implicit-def $sp, implicit $f12, implicit $f14, implicit-def $f0
    ; FP32: [[COPY2:%[0-9]+]]:fprb(s32) = COPY $f0
    ; FP32: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
    ; FP32: $f0 = COPY [[COPY2]](s32)
    ; FP32: RetRA implicit $f0
    ; FP64-LABEL: name: call_float_in_fpr
    ; FP64: liveins: $f12, $f14
    ; FP64: [[COPY:%[0-9]+]]:fprb(s32) = COPY $f12
    ; FP64: [[COPY1:%[0-9]+]]:fprb(s32) = COPY $f14
    ; FP64: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
    ; FP64: $f12 = COPY [[COPY]](s32)
    ; FP64: $f14 = COPY [[COPY1]](s32)
    ; FP64: JAL @float_in_fpr, csr_o32, implicit-def $ra, implicit-def $sp, implicit $f12, implicit $f14, implicit-def $f0
    ; FP64: [[COPY2:%[0-9]+]]:fprb(s32) = COPY $f0
    ; FP64: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
    ; FP64: $f0 = COPY [[COPY2]](s32)
    ; FP64: RetRA implicit $f0
    %0:_(s32) = COPY $f12
    %1:_(s32) = COPY $f14
    ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
    $f12 = COPY %0(s32)
    $f14 = COPY %1(s32)
    JAL @float_in_fpr, csr_o32, implicit-def $ra, implicit-def $sp, implicit $f12, implicit $f14, implicit-def $f0
    %2:_(s32) = COPY $f0
    ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
    $f0 = COPY %2(s32)
    RetRA implicit $f0

...
---
name:            call_double_in_fpr
alignment:       4
legalized:       true
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $d6, $d7

    ; FP32-LABEL: name: call_double_in_fpr
    ; FP32: liveins: $d6, $d7
    ; FP32: [[COPY:%[0-9]+]]:fprb(s64) = COPY $d6
    ; FP32: [[COPY1:%[0-9]+]]:fprb(s64) = COPY $d7
    ; FP32: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
    ; FP32: $d6 = COPY [[COPY]](s64)
    ; FP32: $d7 = COPY [[COPY1]](s64)
    ; FP32: JAL @double_in_fpr, csr_o32, implicit-def $ra, implicit-def $sp, implicit $d6, implicit $d7, implicit-def $d0
    ; FP32: [[COPY2:%[0-9]+]]:fprb(s64) = COPY $d0
    ; FP32: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
    ; FP32: $d0 = COPY [[COPY2]](s64)
    ; FP32: RetRA implicit $d0
    ; FP64-LABEL: name: call_double_in_fpr
    ; FP64: liveins: $d6, $d7
    ; FP64: [[COPY:%[0-9]+]]:fprb(s64) = COPY $d6
    ; FP64: [[COPY1:%[0-9]+]]:fprb(s64) = COPY $d7
    ; FP64: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
    ; FP64: $d6 = COPY [[COPY]](s64)
    ; FP64: $d7 = COPY [[COPY1]](s64)
    ; FP64: JAL @double_in_fpr, csr_o32, implicit-def $ra, implicit-def $sp, implicit $d6, implicit $d7, implicit-def $d0
    ; FP64: [[COPY2:%[0-9]+]]:fprb(s64) = COPY $d0
    ; FP64: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
    ; FP64: $d0 = COPY [[COPY2]](s64)
    ; FP64: RetRA implicit $d0
    %0:_(s64) = COPY $d6
    %1:_(s64) = COPY $d7
    ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
    $d6 = COPY %0(s64)
    $d7 = COPY %1(s64)
    JAL @double_in_fpr, csr_o32, implicit-def $ra, implicit-def $sp, implicit $d6, implicit $d7, implicit-def $d0
    %2:_(s64) = COPY $d0
    ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
    $d0 = COPY %2(s64)
    RetRA implicit $d0

...
---
name:            call_float_in_gpr
alignment:       4
legalized:       true
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $a0, $a1

    ; FP32-LABEL: name: call_float_in_gpr
    ; FP32: liveins: $a0, $a1
    ; FP32: [[COPY:%[0-9]+]]:gprb(s32) = COPY $a0
    ; FP32: [[COPY1:%[0-9]+]]:gprb(s32) = COPY $a1
    ; FP32: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
    ; FP32: $a0 = COPY [[COPY]](s32)
    ; FP32: $a1 = COPY [[COPY1]](s32)
    ; FP32: JAL @float_in_gpr, csr_o32, implicit-def $ra, implicit-def $sp, implicit $a0, implicit-def $f0
    ; FP32: [[COPY2:%[0-9]+]]:fprb(s32) = COPY $f0
    ; FP32: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
    ; FP32: $f0 = COPY [[COPY2]](s32)
    ; FP32: RetRA implicit $f0
    ; FP64-LABEL: name: call_float_in_gpr
    ; FP64: liveins: $a0, $a1
    ; FP64: [[COPY:%[0-9]+]]:gprb(s32) = COPY $a0
    ; FP64: [[COPY1:%[0-9]+]]:gprb(s32) = COPY $a1
    ; FP64: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
    ; FP64: $a0 = COPY [[COPY]](s32)
    ; FP64: $a1 = COPY [[COPY1]](s32)
    ; FP64: JAL @float_in_gpr, csr_o32, implicit-def $ra, implicit-def $sp, implicit $a0, implicit-def $f0
    ; FP64: [[COPY2:%[0-9]+]]:fprb(s32) = COPY $f0
    ; FP64: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
    ; FP64: $f0 = COPY [[COPY2]](s32)
    ; FP64: RetRA implicit $f0
    %0:_(s32) = COPY $a0
    %1:_(s32) = COPY $a1
    ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
    $a0 = COPY %0(s32)
    $a1 = COPY %1(s32)
    JAL @float_in_gpr, csr_o32, implicit-def $ra, implicit-def $sp, implicit $a0, implicit-def $f0
    %2:_(s32) = COPY $f0
    ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
    $f0 = COPY %2(s32)
    RetRA implicit $f0

...
---
name:            call_double_in_gpr
alignment:       4
legalized:       true
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $a0, $a2, $a3

    ; FP32-LABEL: name: call_double_in_gpr
    ; FP32: liveins: $a0, $a2, $a3
    ; FP32: [[COPY:%[0-9]+]]:gprb(s32) = COPY $a0
    ; FP32: [[COPY1:%[0-9]+]]:gprb(s32) = COPY $a2
    ; FP32: [[COPY2:%[0-9]+]]:gprb(s32) = COPY $a3
    ; FP32: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
    ; FP32: $a0 = COPY [[COPY]](s32)
    ; FP32: $a2 = COPY [[COPY1]](s32)
    ; FP32: $a3 = COPY [[COPY2]](s32)
    ; FP32: JAL @double_in_gpr, csr_o32, implicit-def $ra, implicit-def $sp, implicit $a0, implicit-def $d0
    ; FP32: [[COPY3:%[0-9]+]]:fprb(s64) = COPY $d0
    ; FP32: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
    ; FP32: $d0 = COPY [[COPY3]](s64)
    ; FP32: RetRA implicit $d0
    ; FP64-LABEL: name: call_double_in_gpr
    ; FP64: liveins: $a0, $a2, $a3
    ; FP64: [[COPY:%[0-9]+]]:gprb(s32) = COPY $a0
    ; FP64: [[COPY1:%[0-9]+]]:gprb(s32) = COPY $a2
    ; FP64: [[COPY2:%[0-9]+]]:gprb(s32) = COPY $a3
    ; FP64: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
    ; FP64: $a0 = COPY [[COPY]](s32)
    ; FP64: $a2 = COPY [[COPY1]](s32)
    ; FP64: $a3 = COPY [[COPY2]](s32)
    ; FP64: JAL @double_in_gpr, csr_o32, implicit-def $ra, implicit-def $sp, implicit $a0, implicit-def $d0
    ; FP64: [[COPY3:%[0-9]+]]:fprb(s64) = COPY $d0
    ; FP64: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
    ; FP64: $d0 = COPY [[COPY3]](s64)
    ; FP64: RetRA implicit $d0
    %0:_(s32) = COPY $a0
    %2:_(s32) = COPY $a2
    %3:_(s32) = COPY $a3
    ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
    $a0 = COPY %0(s32)
    $a2 = COPY %2(s32)
    $a3 = COPY %3(s32)
    JAL @double_in_gpr, csr_o32, implicit-def $ra, implicit-def $sp, implicit $a0, implicit-def $d0
    %4:_(s64) = COPY $d0
    ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
    $d0 = COPY %4(s64)
    RetRA implicit $d0

...