test/CodeGen/Mips/atomicCmpSwapPW.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -O0 -mtriple=mipsel-unknown-linux-gnu -mcpu=mips32r2 -target-abi=o32 < %s -filetype=asm -o - \
; RUN:   | FileCheck -check-prefixes=O32 %s
; RUN: llc -O0 -mtriple=mips64el-unknown-linux-gnu -mcpu=mips64r2 -target-abi=n32 < %s -filetype=asm -o - \
; RUN:   | FileCheck  -check-prefixes=N32,ALL %s
; RUN: llc -O0 -mtriple=mips64el-unknown-linux-gnu -mcpu=mips64r2 -target-abi=n64 < %s -filetype=asm -o - \
; RUN:   | FileCheck -check-prefixes=N64 %s

@sym = external global i32 *

define void @foo(i32 %new, i32 %old) {
; O32-LABEL: foo:
; O32:       # %bb.0: # %entry
; O32-NEXT:    lui $1, %hi(sym)
; O32-NEXT:    lw $1, %lo(sym)($1)
; O32-NEXT:    sync
; O32-NEXT:  $BB0_1: # %entry
; O32-NEXT:    # =>This Inner Loop Header: Depth=1
; O32-NEXT:    ll $2, 0($1)
; O32-NEXT:    bne $2, $4, $BB0_3
; O32-NEXT:    nop
; O32-NEXT:  # %bb.2: # %entry
; O32-NEXT:    # in Loop: Header=BB0_1 Depth=1
; O32-NEXT:    move $3, $5
; O32-NEXT:    sc $3, 0($1)
; O32-NEXT:    beqz $3, $BB0_1
; O32-NEXT:    nop
; O32-NEXT:  $BB0_3: # %entry
; O32-NEXT:    sync
; O32-NEXT:    jr $ra
; O32-NEXT:    nop
;
; N32-LABEL: foo:
; N32:       # %bb.0: # %entry
; N32-NEXT:    # kill: def $a1 killed $a1 killed $a1_64
; N32-NEXT:    sll $1, $5, 0
; N32-NEXT:    # kill: def $a0 killed $a0 killed $a0_64
; N32-NEXT:    sll $2, $4, 0
; N32-NEXT:    lui $3, %hi(sym)
; N32-NEXT:    lw $3, %lo(sym)($3)
; N32-NEXT:    sync
; N32-NEXT:  .LBB0_1: # %entry
; N32-NEXT:    # =>This Inner Loop Header: Depth=1
; N32-NEXT:    ll $4, 0($3)
; N32-NEXT:    bne $4, $2, .LBB0_3
; N32-NEXT:    nop
; N32-NEXT:  # %bb.2: # %entry
; N32-NEXT:    # in Loop: Header=BB0_1 Depth=1
; N32-NEXT:    move $5, $1
; N32-NEXT:    sc $5, 0($3)
; N32-NEXT:    beqz $5, .LBB0_1
; N32-NEXT:    nop
; N32-NEXT:  .LBB0_3: # %entry
; N32-NEXT:    sync
; N32-NEXT:    jr $ra
; N32-NEXT:    nop
;
; N64-LABEL: foo:
; N64:       # %bb.0: # %entry
; N64-NEXT:    # kill: def $a1 killed $a1 killed $a1_64
; N64-NEXT:    sll $1, $5, 0
; N64-NEXT:    # kill: def $a0 killed $a0 killed $a0_64
; N64-NEXT:    sll $2, $4, 0
; N64-NEXT:    lui $3, %highest(sym)
; N64-NEXT:    daddiu $3, $3, %higher(sym)
; N64-NEXT:    dsll $3, $3, 16
; N64-NEXT:    daddiu $3, $3, %hi(sym)
; N64-NEXT:    dsll $3, $3, 16
; N64-NEXT:    ld $3, %lo(sym)($3)
; N64-NEXT:    sync
; N64-NEXT:  .LBB0_1: # %entry
; N64-NEXT:    # =>This Inner Loop Header: Depth=1
; N64-NEXT:    ll $4, 0($3)
; N64-NEXT:    bne $4, $2, .LBB0_3
; N64-NEXT:    nop
; N64-NEXT:  # %bb.2: # %entry
; N64-NEXT:    # in Loop: Header=BB0_1 Depth=1
; N64-NEXT:    move $5, $1
; N64-NEXT:    sc $5, 0($3)
; N64-NEXT:    beqz $5, .LBB0_1
; N64-NEXT:    nop
; N64-NEXT:  .LBB0_3: # %entry
; N64-NEXT:    sync
; N64-NEXT:    jr $ra
; N64-NEXT:    nop
entry:
  %0 = load i32 *, i32 ** @sym
  cmpxchg i32 * %0, i32 %new, i32 %old seq_cst seq_cst
  ret void
}