1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2 ; RUN: llc -O0 -mtriple=mipsel-unknown-linux-gnu -mcpu=mips32r2 -target-abi=o32 < %s -filetype=asm -o - \ 3 ; RUN: | FileCheck -check-prefixes=O32 %s 4 ; RUN: llc -O0 -mtriple=mips64el-unknown-linux-gnu -mcpu=mips64r2 -target-abi=n32 < %s -filetype=asm -o - \ 5 ; RUN: | FileCheck -check-prefixes=N32,ALL %s 6 ; RUN: llc -O0 -mtriple=mips64el-unknown-linux-gnu -mcpu=mips64r2 -target-abi=n64 < %s -filetype=asm -o - \ 7 ; RUN: | FileCheck -check-prefixes=N64 %s 8 9 @sym = external global i32 * 10 11 define void @foo(i32 %new, i32 %old) { 12 ; O32-LABEL: foo: 13 ; O32: # %bb.0: # %entry 14 ; O32-NEXT: addiu $sp, $sp, -16 15 ; O32-NEXT: .cfi_def_cfa_offset 16 16 ; O32-NEXT: move $1, $5 17 ; O32-NEXT: move $2, $4 18 ; O32-NEXT: lui $3, %hi(sym) 19 ; O32-NEXT: lw $3, %lo(sym)($3) 20 ; O32-NEXT: sync 21 ; O32-NEXT: lw $6, 12($sp) # 4-byte Folded Reload 22 ; O32-NEXT: $BB0_1: # %entry 23 ; O32-NEXT: # =>This Inner Loop Header: Depth=1 24 ; O32-NEXT: ll $7, 0($3) 25 ; O32-NEXT: bne $7, $4, $BB0_3 26 ; O32-NEXT: nop 27 ; O32-NEXT: # %bb.2: # %entry 28 ; O32-NEXT: # in Loop: Header=BB0_1 Depth=1 29 ; O32-NEXT: move $8, $5 30 ; O32-NEXT: sc $8, 0($3) 31 ; O32-NEXT: beqz $8, $BB0_1 32 ; O32-NEXT: nop 33 ; O32-NEXT: $BB0_3: # %entry 34 ; O32-NEXT: sync 35 ; O32-NEXT: sw $7, 12($sp) # 4-byte Folded Spill 36 ; O32-NEXT: sw $6, 8($sp) # 4-byte Folded Spill 37 ; O32-NEXT: sw $1, 4($sp) # 4-byte Folded Spill 38 ; O32-NEXT: sw $2, 0($sp) # 4-byte Folded Spill 39 ; O32-NEXT: addiu $sp, $sp, 16 40 ; O32-NEXT: jr $ra 41 ; O32-NEXT: nop 42 ; 43 ; N32-LABEL: foo: 44 ; N32: # %bb.0: # %entry 45 ; N32-NEXT: addiu $sp, $sp, -16 46 ; N32-NEXT: .cfi_def_cfa_offset 16 47 ; N32-NEXT: move $1, $5 48 ; N32-NEXT: sll $1, $1, 0 49 ; N32-NEXT: move $2, $4 50 ; N32-NEXT: sll $2, $2, 0 51 ; N32-NEXT: lui $3, %hi(sym) 52 ; N32-NEXT: lw $3, %lo(sym)($3) 53 ; N32-NEXT: sync 54 ; N32-NEXT: lw $6, 12($sp) # 4-byte Folded Reload 55 ; N32-NEXT: .LBB0_1: # %entry 56 ; N32-NEXT: # =>This Inner Loop Header: Depth=1 57 ; N32-NEXT: ll $7, 0($3) 58 ; N32-NEXT: bne $7, $2, .LBB0_3 59 ; N32-NEXT: nop 60 ; N32-NEXT: # %bb.2: # %entry 61 ; N32-NEXT: # in Loop: Header=BB0_1 Depth=1 62 ; N32-NEXT: move $8, $1 63 ; N32-NEXT: sc $8, 0($3) 64 ; N32-NEXT: beqz $8, .LBB0_1 65 ; N32-NEXT: nop 66 ; N32-NEXT: .LBB0_3: # %entry 67 ; N32-NEXT: sync 68 ; N32-NEXT: sw $7, 12($sp) # 4-byte Folded Spill 69 ; N32-NEXT: sw $6, 8($sp) # 4-byte Folded Spill 70 ; N32-NEXT: addiu $sp, $sp, 16 71 ; N32-NEXT: jr $ra 72 ; N32-NEXT: nop 73 ; 74 ; N64-LABEL: foo: 75 ; N64: # %bb.0: # %entry 76 ; N64-NEXT: daddiu $sp, $sp, -16 77 ; N64-NEXT: .cfi_def_cfa_offset 16 78 ; N64-NEXT: move $1, $5 79 ; N64-NEXT: sll $1, $1, 0 80 ; N64-NEXT: move $2, $4 81 ; N64-NEXT: sll $2, $2, 0 82 ; N64-NEXT: lui $4, %highest(sym) 83 ; N64-NEXT: daddiu $4, $4, %higher(sym) 84 ; N64-NEXT: dsll $4, $4, 16 85 ; N64-NEXT: daddiu $4, $4, %hi(sym) 86 ; N64-NEXT: dsll $4, $4, 16 87 ; N64-NEXT: ld $4, %lo(sym)($4) 88 ; N64-NEXT: sync 89 ; N64-NEXT: lw $3, 12($sp) # 4-byte Folded Reload 90 ; N64-NEXT: .LBB0_1: # %entry 91 ; N64-NEXT: # =>This Inner Loop Header: Depth=1 92 ; N64-NEXT: ll $6, 0($4) 93 ; N64-NEXT: bne $6, $2, .LBB0_3 94 ; N64-NEXT: nop 95 ; N64-NEXT: # %bb.2: # %entry 96 ; N64-NEXT: # in Loop: Header=BB0_1 Depth=1 97 ; N64-NEXT: move $7, $1 98 ; N64-NEXT: sc $7, 0($4) 99 ; N64-NEXT: beqz $7, .LBB0_1 100 ; N64-NEXT: nop 101 ; N64-NEXT: .LBB0_3: # %entry 102 ; N64-NEXT: sync 103 ; N64-NEXT: sw $6, 12($sp) # 4-byte Folded Spill 104 ; N64-NEXT: sw $3, 8($sp) # 4-byte Folded Spill 105 ; N64-NEXT: daddiu $sp, $sp, 16 106 ; N64-NEXT: jr $ra 107 ; N64-NEXT: nop 108 entry: 109 %0 = load i32 *, i32 ** @sym 110 cmpxchg i32 * %0, i32 %new, i32 %old seq_cst seq_cst 111 ret void 112 } 113 114
