llvm-6502/test/CodeGen/Mips/atomic.ll
Akira Hatanaka affed7e11d [mips] Big-endian code generation for atomic instructions.
Patch by Jyun-Yan You.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182984 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-31 03:25:44 +00:00

437 lines
16 KiB
LLVM

; RUN: llc -march=mipsel --disable-machine-licm < %s | FileCheck %s -check-prefix=CHECK-EL
; RUN: llc -march=mips --disable-machine-licm < %s | FileCheck %s -check-prefix=CHECK-EB
@x = common global i32 0, align 4
define i32 @AtomicLoadAdd32(i32 %incr) nounwind {
entry:
%0 = atomicrmw add i32* @x, i32 %incr monotonic
ret i32 %0
; CHECK-EL: AtomicLoadAdd32:
; CHECK-EL: lw $[[R0:[0-9]+]], %got(x)
; CHECK-EL: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EL: ll $[[R1:[0-9]+]], 0($[[R0]])
; CHECK-EL: addu $[[R2:[0-9]+]], $[[R1]], $4
; CHECK-EL: sc $[[R2]], 0($[[R0]])
; CHECK-EL: beq $[[R2]], $zero, $[[BB0]]
; CHECK-EB: AtomicLoadAdd32:
; CHECK-EB: lw $[[R0:[0-9]+]], %got(x)
; CHECK-EB: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EB: ll $[[R1:[0-9]+]], 0($[[R0]])
; CHECK-EB: addu $[[R2:[0-9]+]], $[[R1]], $4
; CHECK-EB: sc $[[R2]], 0($[[R0]])
; CHECK-EB: beq $[[R2]], $zero, $[[BB0]]
}
define i32 @AtomicLoadNand32(i32 %incr) nounwind {
entry:
%0 = atomicrmw nand i32* @x, i32 %incr monotonic
ret i32 %0
; CHECK-EL: AtomicLoadNand32:
; CHECK-EL: lw $[[R0:[0-9]+]], %got(x)
; CHECK-EL: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EL: ll $[[R1:[0-9]+]], 0($[[R0]])
; CHECK-EL: and $[[R3:[0-9]+]], $[[R1]], $4
; CHECK-EL: nor $[[R2:[0-9]+]], $zero, $[[R3]]
; CHECK-EL: sc $[[R2]], 0($[[R0]])
; CHECK-EL: beq $[[R2]], $zero, $[[BB0]]
; CHECK-EB: AtomicLoadNand32:
; CHECK-EB: lw $[[R0:[0-9]+]], %got(x)
; CHECK-EB: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EB: ll $[[R1:[0-9]+]], 0($[[R0]])
; CHECK-EB: and $[[R3:[0-9]+]], $[[R1]], $4
; CHECK-EB: nor $[[R2:[0-9]+]], $zero, $[[R3]]
; CHECK-EB: sc $[[R2]], 0($[[R0]])
; CHECK-EB: beq $[[R2]], $zero, $[[BB0]]
}
define i32 @AtomicSwap32(i32 %newval) nounwind {
entry:
%newval.addr = alloca i32, align 4
store i32 %newval, i32* %newval.addr, align 4
%tmp = load i32* %newval.addr, align 4
%0 = atomicrmw xchg i32* @x, i32 %tmp monotonic
ret i32 %0
; CHECK-EL: AtomicSwap32:
; CHECK-EL: lw $[[R0:[0-9]+]], %got(x)
; CHECK-EL: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EL: ll ${{[0-9]+}}, 0($[[R0]])
; CHECK-EL: sc $[[R2:[0-9]+]], 0($[[R0]])
; CHECK-EL: beq $[[R2]], $zero, $[[BB0]]
; CHECK-EB: AtomicSwap32:
; CHECK-EB: lw $[[R0:[0-9]+]], %got(x)
; CHECK-EB: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EB: ll ${{[0-9]+}}, 0($[[R0]])
; CHECK-EB: sc $[[R2:[0-9]+]], 0($[[R0]])
; CHECK-EB: beq $[[R2]], $zero, $[[BB0]]
}
define i32 @AtomicCmpSwap32(i32 %oldval, i32 %newval) nounwind {
entry:
%newval.addr = alloca i32, align 4
store i32 %newval, i32* %newval.addr, align 4
%tmp = load i32* %newval.addr, align 4
%0 = cmpxchg i32* @x, i32 %oldval, i32 %tmp monotonic
ret i32 %0
; CHECK-EL: AtomicCmpSwap32:
; CHECK-EL: lw $[[R0:[0-9]+]], %got(x)
; CHECK-EL: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EL: ll $2, 0($[[R0]])
; CHECK-EL: bne $2, $4, $[[BB1:[A-Z_0-9]+]]
; CHECK-EL: sc $[[R2:[0-9]+]], 0($[[R0]])
; CHECK-EL: beq $[[R2]], $zero, $[[BB0]]
; CHECK-EL: $[[BB1]]:
; CHECK-EB: AtomicCmpSwap32:
; CHECK-EB: lw $[[R0:[0-9]+]], %got(x)
; CHECK-EB: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EB: ll $2, 0($[[R0]])
; CHECK-EB: bne $2, $4, $[[BB1:[A-Z_0-9]+]]
; CHECK-EB: sc $[[R2:[0-9]+]], 0($[[R0]])
; CHECK-EB: beq $[[R2]], $zero, $[[BB0]]
; CHECK-EB: $[[BB1]]:
}
@y = common global i8 0, align 1
define signext i8 @AtomicLoadAdd8(i8 signext %incr) nounwind {
entry:
%0 = atomicrmw add i8* @y, i8 %incr monotonic
ret i8 %0
; CHECK-EL: AtomicLoadAdd8:
; CHECK-EL: lw $[[R0:[0-9]+]], %got(y)
; CHECK-EL: addiu $[[R1:[0-9]+]], $zero, -4
; CHECK-EL: and $[[R2:[0-9]+]], $[[R0]], $[[R1]]
; CHECK-EL: andi $[[R3:[0-9]+]], $[[R0]], 3
; CHECK-EL: sll $[[R4:[0-9]+]], $[[R3]], 3
; CHECK-EL: ori $[[R5:[0-9]+]], $zero, 255
; CHECK-EL: sllv $[[R6:[0-9]+]], $[[R5]], $[[R4]]
; CHECK-EL: nor $[[R7:[0-9]+]], $zero, $[[R6]]
; CHECK-EL: sllv $[[R9:[0-9]+]], $4, $[[R4]]
; CHECK-EL: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EL: ll $[[R10:[0-9]+]], 0($[[R2]])
; CHECK-EL: addu $[[R11:[0-9]+]], $[[R10]], $[[R9]]
; CHECK-EL: and $[[R12:[0-9]+]], $[[R11]], $[[R6]]
; CHECK-EL: and $[[R13:[0-9]+]], $[[R10]], $[[R7]]
; CHECK-EL: or $[[R14:[0-9]+]], $[[R13]], $[[R12]]
; CHECK-EL: sc $[[R14]], 0($[[R2]])
; CHECK-EL: beq $[[R14]], $zero, $[[BB0]]
; CHECK-EL: and $[[R15:[0-9]+]], $[[R10]], $[[R6]]
; CHECK-EL: srlv $[[R16:[0-9]+]], $[[R15]], $[[R4]]
; CHECK-EL: sll $[[R17:[0-9]+]], $[[R16]], 24
; CHECK-EL: sra $2, $[[R17]], 24
; CHECK-EB: AtomicLoadAdd8:
; CHECK-EB: lw $[[R0:[0-9]+]], %got(y)
; CHECK-EB: addiu $[[R1:[0-9]+]], $zero, -4
; CHECK-EB: and $[[R2:[0-9]+]], $[[R0]], $[[R1]]
; CHECK-EB: andi $[[R3:[0-9]+]], $[[R0]], 3
; CHECK-EB: xori $[[R4:[0-9]+]], $[[R3]], 3
; CHECK-EB: sll $[[R5:[0-9]+]], $[[R4]], 3
; CHECK-EB: ori $[[R6:[0-9]+]], $zero, 255
; CHECK-EB: sllv $[[R7:[0-9]+]], $[[R6]], $[[R5]]
; CHECK-EB: nor $[[R8:[0-9]+]], $zero, $[[R7]]
; CHECK-EB: sllv $[[R9:[0-9]+]], $4, $[[R5]]
; CHECK-EB: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EB: ll $[[R10:[0-9]+]], 0($[[R2]])
; CHECK-EB: addu $[[R11:[0-9]+]], $[[R10]], $[[R9]]
; CHECK-EB: and $[[R12:[0-9]+]], $[[R11]], $[[R7]]
; CHECK-EB: and $[[R13:[0-9]+]], $[[R10]], $[[R8]]
; CHECK-EB: or $[[R14:[0-9]+]], $[[R13]], $[[R12]]
; CHECK-EB: sc $[[R14]], 0($[[R2]])
; CHECK-EB: beq $[[R14]], $zero, $[[BB0]]
; CHECK-EB: and $[[R15:[0-9]+]], $[[R10]], $[[R7]]
; CHECK-EB: srlv $[[R16:[0-9]+]], $[[R15]], $[[R5]]
; CHECK-EB: sll $[[R17:[0-9]+]], $[[R16]], 24
; CHECK-EB: sra $2, $[[R17]], 24
}
define signext i8 @AtomicLoadSub8(i8 signext %incr) nounwind {
entry:
%0 = atomicrmw sub i8* @y, i8 %incr monotonic
ret i8 %0
; CHECK-EL: AtomicLoadSub8:
; CHECK-EL: lw $[[R0:[0-9]+]], %got(y)
; CHECK-EL: addiu $[[R1:[0-9]+]], $zero, -4
; CHECK-EL: and $[[R2:[0-9]+]], $[[R0]], $[[R1]]
; CHECK-EL: andi $[[R3:[0-9]+]], $[[R0]], 3
; CHECK-EL: sll $[[R4:[0-9]+]], $[[R3]], 3
; CHECK-EL: ori $[[R5:[0-9]+]], $zero, 255
; CHECK-EL: sllv $[[R6:[0-9]+]], $[[R5]], $[[R4]]
; CHECK-EL: nor $[[R7:[0-9]+]], $zero, $[[R6]]
; CHECK-EL: sllv $[[R9:[0-9]+]], $4, $[[R4]]
; CHECK-EL: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EL: ll $[[R10:[0-9]+]], 0($[[R2]])
; CHECK-EL: subu $[[R11:[0-9]+]], $[[R10]], $[[R9]]
; CHECK-EL: and $[[R12:[0-9]+]], $[[R11]], $[[R6]]
; CHECK-EL: and $[[R13:[0-9]+]], $[[R10]], $[[R7]]
; CHECK-EL: or $[[R14:[0-9]+]], $[[R13]], $[[R12]]
; CHECK-EL: sc $[[R14]], 0($[[R2]])
; CHECK-EL: beq $[[R14]], $zero, $[[BB0]]
; CHECK-EL: and $[[R15:[0-9]+]], $[[R10]], $[[R6]]
; CHECK-EL: srlv $[[R16:[0-9]+]], $[[R15]], $[[R4]]
; CHECK-EL: sll $[[R17:[0-9]+]], $[[R16]], 24
; CHECK-EL: sra $2, $[[R17]], 24
; CHECK-EB: AtomicLoadSub8:
; CHECK-EB: lw $[[R0:[0-9]+]], %got(y)
; CHECK-EB: addiu $[[R1:[0-9]+]], $zero, -4
; CHECK-EB: and $[[R2:[0-9]+]], $[[R0]], $[[R1]]
; CHECK-EB: andi $[[R3:[0-9]+]], $[[R0]], 3
; CHECK-EB: xori $[[R4:[0-9]+]], $[[R3]], 3
; CHECK-EB: sll $[[R5:[0-9]+]], $[[R4]], 3
; CHECK-EB: ori $[[R6:[0-9]+]], $zero, 255
; CHECK-EB: sllv $[[R7:[0-9]+]], $[[R6]], $[[R5]]
; CHECK-EB: nor $[[R8:[0-9]+]], $zero, $[[R7]]
; CHECK-EB: sllv $[[R9:[0-9]+]], $4, $[[R5]]
; CHECK-EB: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EB: ll $[[R10:[0-9]+]], 0($[[R2]])
; CHECK-EB: subu $[[R11:[0-9]+]], $[[R10]], $[[R9]]
; CHECK-EB: and $[[R12:[0-9]+]], $[[R11]], $[[R7]]
; CHECK-EB: and $[[R13:[0-9]+]], $[[R10]], $[[R8]]
; CHECK-EB: or $[[R14:[0-9]+]], $[[R13]], $[[R12]]
; CHECK-EB: sc $[[R14]], 0($[[R2]])
; CHECK-EB: beq $[[R14]], $zero, $[[BB0]]
; CHECK-EB: and $[[R15:[0-9]+]], $[[R10]], $[[R7]]
; CHECK-EB: srlv $[[R16:[0-9]+]], $[[R15]], $[[R5]]
; CHECK-EB: sll $[[R17:[0-9]+]], $[[R16]], 24
; CHECK-EB: sra $2, $[[R17]], 24
}
define signext i8 @AtomicLoadNand8(i8 signext %incr) nounwind {
entry:
%0 = atomicrmw nand i8* @y, i8 %incr monotonic
ret i8 %0
; CHECK-EL: AtomicLoadNand8:
; CHECK-EL: lw $[[R0:[0-9]+]], %got(y)
; CHECK-EL: addiu $[[R1:[0-9]+]], $zero, -4
; CHECK-EL: and $[[R2:[0-9]+]], $[[R0]], $[[R1]]
; CHECK-EL: andi $[[R3:[0-9]+]], $[[R0]], 3
; CHECK-EL: sll $[[R4:[0-9]+]], $[[R3]], 3
; CHECK-EL: ori $[[R5:[0-9]+]], $zero, 255
; CHECK-EL: sllv $[[R6:[0-9]+]], $[[R5]], $[[R4]]
; CHECK-EL: nor $[[R7:[0-9]+]], $zero, $[[R6]]
; CHECK-EL: sllv $[[R9:[0-9]+]], $4, $[[R4]]
; CHECK-EL: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EL: ll $[[R10:[0-9]+]], 0($[[R2]])
; CHECK-EL: and $[[R18:[0-9]+]], $[[R10]], $[[R9]]
; CHECK-EL: nor $[[R11:[0-9]+]], $zero, $[[R18]]
; CHECK-EL: and $[[R12:[0-9]+]], $[[R11]], $[[R6]]
; CHECK-EL: and $[[R13:[0-9]+]], $[[R10]], $[[R7]]
; CHECK-EL: or $[[R14:[0-9]+]], $[[R13]], $[[R12]]
; CHECK-EL: sc $[[R14]], 0($[[R2]])
; CHECK-EL: beq $[[R14]], $zero, $[[BB0]]
; CHECK-EL: and $[[R15:[0-9]+]], $[[R10]], $[[R6]]
; CHECK-EL: srlv $[[R16:[0-9]+]], $[[R15]], $[[R4]]
; CHECK-EL: sll $[[R17:[0-9]+]], $[[R16]], 24
; CHECK-EL: sra $2, $[[R17]], 24
; CHECK-EB: AtomicLoadNand8:
; CHECK-EB: lw $[[R0:[0-9]+]], %got(y)
; CHECK-EB: addiu $[[R1:[0-9]+]], $zero, -4
; CHECK-EB: and $[[R2:[0-9]+]], $[[R0]], $[[R1]]
; CHECK-EB: andi $[[R3:[0-9]+]], $[[R0]], 3
; CHECK-EB: xori $[[R4:[0-9]+]], $[[R3]], 3
; CHECK-EB: sll $[[R5:[0-9]+]], $[[R4]], 3
; CHECK-EB: ori $[[R6:[0-9]+]], $zero, 255
; CHECK-EB: sllv $[[R7:[0-9]+]], $[[R6]], $[[R5]]
; CHECK-EB: nor $[[R8:[0-9]+]], $zero, $[[R7]]
; CHECK-EB: sllv $[[R9:[0-9]+]], $4, $[[R5]]
; CHECK-EB: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EB: ll $[[R10:[0-9]+]], 0($[[R2]])
; CHECK-EB: and $[[R18:[0-9]+]], $[[R10]], $[[R9]]
; CHECK-EB: nor $[[R11:[0-9]+]], $zero, $[[R18]]
; CHECK-EB: and $[[R12:[0-9]+]], $[[R11]], $[[R7]]
; CHECK-EB: and $[[R13:[0-9]+]], $[[R10]], $[[R8]]
; CHECK-EB: or $[[R14:[0-9]+]], $[[R13]], $[[R12]]
; CHECK-EB: sc $[[R14]], 0($[[R2]])
; CHECK-EB: beq $[[R14]], $zero, $[[BB0]]
; CHECK-EB: and $[[R15:[0-9]+]], $[[R10]], $[[R7]]
; CHECK-EB: srlv $[[R16:[0-9]+]], $[[R15]], $[[R5]]
; CHECK-EB: sll $[[R17:[0-9]+]], $[[R16]], 24
; CHECK-EB: sra $2, $[[R17]], 24
}
define signext i8 @AtomicSwap8(i8 signext %newval) nounwind {
entry:
%0 = atomicrmw xchg i8* @y, i8 %newval monotonic
ret i8 %0
; CHECK-EL: AtomicSwap8:
; CHECK-EL: lw $[[R0:[0-9]+]], %got(y)
; CHECK-EL: addiu $[[R1:[0-9]+]], $zero, -4
; CHECK-EL: and $[[R2:[0-9]+]], $[[R0]], $[[R1]]
; CHECK-EL: andi $[[R3:[0-9]+]], $[[R0]], 3
; CHECK-EL: sll $[[R4:[0-9]+]], $[[R3]], 3
; CHECK-EL: ori $[[R5:[0-9]+]], $zero, 255
; CHECK-EL: sllv $[[R6:[0-9]+]], $[[R5]], $[[R4]]
; CHECK-EL: nor $[[R7:[0-9]+]], $zero, $[[R6]]
; CHECK-EL: sllv $[[R9:[0-9]+]], $4, $[[R4]]
; CHECK-EL: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EL: ll $[[R10:[0-9]+]], 0($[[R2]])
; CHECK-EL: and $[[R18:[0-9]+]], $[[R9]], $[[R6]]
; CHECK-EL: and $[[R13:[0-9]+]], $[[R10]], $[[R7]]
; CHECK-EL: or $[[R14:[0-9]+]], $[[R13]], $[[R18]]
; CHECK-EL: sc $[[R14]], 0($[[R2]])
; CHECK-EL: beq $[[R14]], $zero, $[[BB0]]
; CHECK-EL: and $[[R15:[0-9]+]], $[[R10]], $[[R6]]
; CHECK-EL: srlv $[[R16:[0-9]+]], $[[R15]], $[[R4]]
; CHECK-EL: sll $[[R17:[0-9]+]], $[[R16]], 24
; CHECK-EL: sra $2, $[[R17]], 24
; CHECK-EB: AtomicSwap8:
; CHECK-EB: lw $[[R0:[0-9]+]], %got(y)
; CHECK-EB: addiu $[[R1:[0-9]+]], $zero, -4
; CHECK-EB: and $[[R2:[0-9]+]], $[[R0]], $[[R1]]
; CHECK-EB: andi $[[R3:[0-9]+]], $[[R0]], 3
; CHECK-EB: xori $[[R4:[0-9]+]], $[[R3]], 3
; CHECK-EB: sll $[[R5:[0-9]+]], $[[R4]], 3
; CHECK-EB: ori $[[R6:[0-9]+]], $zero, 255
; CHECK-EB: sllv $[[R7:[0-9]+]], $[[R6]], $[[R5]]
; CHECK-EB: nor $[[R8:[0-9]+]], $zero, $[[R7]]
; CHECK-EB: sllv $[[R9:[0-9]+]], $4, $[[R5]]
; CHECK-EB: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EB: ll $[[R10:[0-9]+]], 0($[[R2]])
; CHECK-EB: and $[[R18:[0-9]+]], $[[R9]], $[[R7]]
; CHECK-EB: and $[[R13:[0-9]+]], $[[R10]], $[[R8]]
; CHECK-EB: or $[[R14:[0-9]+]], $[[R13]], $[[R18]]
; CHECK-EB: sc $[[R14]], 0($[[R2]])
; CHECK-EB: beq $[[R14]], $zero, $[[BB0]]
; CHECK-EB: and $[[R15:[0-9]+]], $[[R10]], $[[R7]]
; CHECK-EB: srlv $[[R16:[0-9]+]], $[[R15]], $[[R5]]
; CHECK-EB: sll $[[R17:[0-9]+]], $[[R16]], 24
; CHECK-EB: sra $2, $[[R17]], 24
}
define signext i8 @AtomicCmpSwap8(i8 signext %oldval, i8 signext %newval) nounwind {
entry:
%0 = cmpxchg i8* @y, i8 %oldval, i8 %newval monotonic
ret i8 %0
; CHECK-EL: AtomicCmpSwap8:
; CHECK-EL: lw $[[R0:[0-9]+]], %got(y)
; CHECK-EL: addiu $[[R1:[0-9]+]], $zero, -4
; CHECK-EL: and $[[R2:[0-9]+]], $[[R0]], $[[R1]]
; CHECK-EL: andi $[[R3:[0-9]+]], $[[R0]], 3
; CHECK-EL: sll $[[R4:[0-9]+]], $[[R3]], 3
; CHECK-EL: ori $[[R5:[0-9]+]], $zero, 255
; CHECK-EL: sllv $[[R6:[0-9]+]], $[[R5]], $[[R4]]
; CHECK-EL: nor $[[R7:[0-9]+]], $zero, $[[R6]]
; CHECK-EL: andi $[[R8:[0-9]+]], $4, 255
; CHECK-EL: sllv $[[R9:[0-9]+]], $[[R8]], $[[R4]]
; CHECK-EL: andi $[[R10:[0-9]+]], $5, 255
; CHECK-EL: sllv $[[R11:[0-9]+]], $[[R10]], $[[R4]]
; CHECK-EL: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EL: ll $[[R12:[0-9]+]], 0($[[R2]])
; CHECK-EL: and $[[R13:[0-9]+]], $[[R12]], $[[R6]]
; CHECK-EL: bne $[[R13]], $[[R9]], $[[BB1:[A-Z_0-9]+]]
; CHECK-EL: and $[[R14:[0-9]+]], $[[R12]], $[[R7]]
; CHECK-EL: or $[[R15:[0-9]+]], $[[R14]], $[[R11]]
; CHECK-EL: sc $[[R15]], 0($[[R2]])
; CHECK-EL: beq $[[R15]], $zero, $[[BB0]]
; CHECK-EL: $[[BB1]]:
; CHECK-EL: srlv $[[R16:[0-9]+]], $[[R13]], $[[R4]]
; CHECK-EL: sll $[[R17:[0-9]+]], $[[R16]], 24
; CHECK-EL: sra $2, $[[R17]], 24
; CHECK-EB: AtomicCmpSwap8:
; CHECK-EB: lw $[[R0:[0-9]+]], %got(y)
; CHECK-EB: addiu $[[R1:[0-9]+]], $zero, -4
; CHECK-EB: and $[[R2:[0-9]+]], $[[R0]], $[[R1]]
; CHECK-EB: andi $[[R3:[0-9]+]], $[[R0]], 3
; CHECK-EB: xori $[[R4:[0-9]+]], $[[R3]], 3
; CHECK-EB: sll $[[R5:[0-9]+]], $[[R4]], 3
; CHECK-EB: ori $[[R6:[0-9]+]], $zero, 255
; CHECK-EB: sllv $[[R7:[0-9]+]], $[[R6]], $[[R5]]
; CHECK-EB: nor $[[R8:[0-9]+]], $zero, $[[R7]]
; CHECK-EB: andi $[[R9:[0-9]+]], $4, 255
; CHECK-EB: sllv $[[R10:[0-9]+]], $[[R9]], $[[R5]]
; CHECK-EB: andi $[[R11:[0-9]+]], $5, 255
; CHECK-EB: sllv $[[R12:[0-9]+]], $[[R11]], $[[R5]]
; CHECK-EB: $[[BB0:[A-Z_0-9]+]]:
; CHECK-EB: ll $[[R13:[0-9]+]], 0($[[R2]])
; CHECK-EB: and $[[R14:[0-9]+]], $[[R13]], $[[R7]]
; CHECK-EB: bne $[[R14]], $[[R10]], $[[BB1:[A-Z_0-9]+]]
; CHECK-EB: and $[[R15:[0-9]+]], $[[R13]], $[[R8]]
; CHECK-EB: or $[[R16:[0-9]+]], $[[R15]], $[[R12]]
; CHECK-EB: sc $[[R16]], 0($[[R2]])
; CHECK-EB: beq $[[R16]], $zero, $[[BB0]]
; CHECK-EB: $[[BB1]]:
; CHECK-EB: srlv $[[R17:[0-9]+]], $[[R14]], $[[R5]]
; CHECK-EB: sll $[[R18:[0-9]+]], $[[R17]], 24
; CHECK-EB: sra $2, $[[R18]], 24
}
@countsint = common global i32 0, align 4
define i32 @CheckSync(i32 %v) nounwind noinline {
entry:
%0 = atomicrmw add i32* @countsint, i32 %v seq_cst
ret i32 %0
; CHECK-EL: CheckSync:
; CHECK-EL: sync 0
; CHECK-EL: ll
; CHECK-EL: sc
; CHECK-EL: beq
; CHECK-EL: sync 0
; CHECK-EB: CheckSync:
; CHECK-EB: sync 0
; CHECK-EB: ll
; CHECK-EB: sc
; CHECK-EB: beq
; CHECK-EB: sync 0
}
; make sure that this assertion in
; TwoAddressInstructionPass::TryInstructionTransform does not fail:
;
; line 1203: assert(TargetRegisterInfo::isVirtualRegister(regB) &&
;
; it failed when MipsDAGToDAGISel::ReplaceUsesWithZeroReg replaced an
; operand of an atomic instruction with register $zero.
@a = external global i32
define i32 @zeroreg() nounwind {
entry:
%0 = cmpxchg i32* @a, i32 1, i32 0 seq_cst
%1 = icmp eq i32 %0, 1
%conv = zext i1 %1 to i32
ret i32 %conv
}