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| ; 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
}
|