| ; RUN: llc -march=mipsel --disable-machine-licm -mcpu=mips32 < %s | FileCheck %s -check-prefix=ALL -check-prefix=MIPS32-ANY -check-prefix=NO-SEB-SEH -check-prefix=CHECK-EL |
| ; RUN: llc -march=mipsel --disable-machine-licm -mcpu=mips32r2 < %s | FileCheck %s -check-prefix=ALL -check-prefix=MIPS32-ANY -check-prefix=HAS-SEB-SEH -check-prefix=CHECK-EL |
| ; RUN: llc -march=mipsel --disable-machine-licm -mcpu=mips32r6 < %s | FileCheck %s -check-prefix=ALL -check-prefix=MIPS32-ANY -check-prefix=HAS-SEB-SEH -check-prefix=CHECK-EL |
| ; RUN: llc -march=mips64el --disable-machine-licm -mcpu=mips4 < %s | FileCheck %s -check-prefix=ALL -check-prefix=MIPS64-ANY -check-prefix=NO-SEB-SEH -check-prefix=CHECK-EL |
| ; RUN: llc -march=mips64el --disable-machine-licm -mcpu=mips64 < %s | FileCheck %s -check-prefix=ALL -check-prefix=MIPS64-ANY -check-prefix=NO-SEB-SEH -check-prefix=CHECK-EL |
| ; RUN: llc -march=mips64el --disable-machine-licm -mcpu=mips64r2 < %s | FileCheck %s -check-prefix=ALL -check-prefix=MIPS64-ANY -check-prefix=HAS-SEB-SEH -check-prefix=CHECK-EL |
| ; RUN: llc -march=mips64el --disable-machine-licm -mcpu=mips64r6 < %s | FileCheck %s -check-prefix=ALL -check-prefix=MIPS64-ANY -check-prefix=HAS-SEB-SEH -check-prefix=CHECK-EL |
| |
| ; Keep one big-endian check so that we don't reduce testing, but don't add more |
| ; since endianness doesn't affect the body of the atomic operations. |
| ; RUN: llc -march=mips --disable-machine-licm -mcpu=mips32 < %s | FileCheck %s -check-prefix=ALL -check-prefix=MIPS32-ANY -check-prefix=NO-SEB-SEH -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 |
| |
| ; ALL-LABEL: AtomicLoadAdd32: |
| |
| ; MIPS32-ANY: lw $[[R0:[0-9]+]], %got(x) |
| ; MIPS64-ANY: ld $[[R0:[0-9]+]], %got_disp(x)( |
| |
| ; ALL: $[[BB0:[A-Z_0-9]+]]: |
| ; ALL: ll $[[R1:[0-9]+]], 0($[[R0]]) |
| ; ALL: addu $[[R2:[0-9]+]], $[[R1]], $4 |
| ; ALL: sc $[[R2]], 0($[[R0]]) |
| ; ALL: beqz $[[R2]], $[[BB0]] |
| } |
| |
| define i32 @AtomicLoadNand32(i32 %incr) nounwind { |
| entry: |
| %0 = atomicrmw nand i32* @x, i32 %incr monotonic |
| ret i32 %0 |
| |
| ; ALL-LABEL: AtomicLoadNand32: |
| |
| ; MIPS32-ANY: lw $[[R0:[0-9]+]], %got(x) |
| ; MIPS64-ANY: ld $[[R0:[0-9]+]], %got_disp(x)( |
| |
| ; ALL: $[[BB0:[A-Z_0-9]+]]: |
| ; ALL: ll $[[R1:[0-9]+]], 0($[[R0]]) |
| ; ALL: and $[[R3:[0-9]+]], $[[R1]], $4 |
| ; ALL: nor $[[R2:[0-9]+]], $zero, $[[R3]] |
| ; ALL: sc $[[R2]], 0($[[R0]]) |
| ; ALL: beqz $[[R2]], $[[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 |
| |
| ; ALL-LABEL: AtomicSwap32: |
| |
| ; MIPS32-ANY: lw $[[R0:[0-9]+]], %got(x) |
| ; MIPS64-ANY: ld $[[R0:[0-9]+]], %got_disp(x) |
| |
| ; ALL: $[[BB0:[A-Z_0-9]+]]: |
| ; ALL: ll ${{[0-9]+}}, 0($[[R0]]) |
| ; ALL: sc $[[R2:[0-9]+]], 0($[[R0]]) |
| ; ALL: beqz $[[R2]], $[[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 monotonic |
| %1 = extractvalue { i32, i1 } %0, 0 |
| ret i32 %1 |
| |
| ; ALL-LABEL: AtomicCmpSwap32: |
| |
| ; MIPS32-ANY: lw $[[R0:[0-9]+]], %got(x) |
| ; MIPS64-ANY: ld $[[R0:[0-9]+]], %got_disp(x)( |
| |
| ; ALL: $[[BB0:[A-Z_0-9]+]]: |
| ; ALL: ll $2, 0($[[R0]]) |
| ; ALL: bne $2, $4, $[[BB1:[A-Z_0-9]+]] |
| ; ALL: sc $[[R2:[0-9]+]], 0($[[R0]]) |
| ; ALL: beqz $[[R2]], $[[BB0]] |
| ; ALL: $[[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 |
| |
| ; ALL-LABEL: AtomicLoadAdd8: |
| |
| ; MIPS32-ANY: lw $[[R0:[0-9]+]], %got(y) |
| ; MIPS64-ANY: ld $[[R0:[0-9]+]], %got_disp(y)( |
| |
| ; ALL: addiu $[[R1:[0-9]+]], $zero, -4 |
| ; ALL: and $[[R2:[0-9]+]], $[[R0]], $[[R1]] |
| ; ALL: andi $[[R3:[0-9]+]], $[[R0]], 3 |
| ; CHECK-EB: xori $[[R4:[0-9]+]], $[[R3]], 3 |
| ; CHECK-EB: sll $[[R5:[0-9]+]], $[[R4]], 3 |
| ; CHECK-EL: sll $[[R5:[0-9]+]], $[[R3]], 3 |
| ; ALL: ori $[[R6:[0-9]+]], $zero, 255 |
| ; ALL: sllv $[[R7:[0-9]+]], $[[R6]], $[[R5]] |
| ; ALL: nor $[[R8:[0-9]+]], $zero, $[[R7]] |
| ; ALL: sllv $[[R9:[0-9]+]], $4, $[[R5]] |
| |
| ; ALL: $[[BB0:[A-Z_0-9]+]]: |
| ; ALL: ll $[[R10:[0-9]+]], 0($[[R2]]) |
| ; ALL: addu $[[R11:[0-9]+]], $[[R10]], $[[R9]] |
| ; ALL: and $[[R12:[0-9]+]], $[[R11]], $[[R7]] |
| ; ALL: and $[[R13:[0-9]+]], $[[R10]], $[[R8]] |
| ; ALL: or $[[R14:[0-9]+]], $[[R13]], $[[R12]] |
| ; ALL: sc $[[R14]], 0($[[R2]]) |
| ; ALL: beqz $[[R14]], $[[BB0]] |
| |
| ; ALL: and $[[R15:[0-9]+]], $[[R10]], $[[R7]] |
| ; ALL: srlv $[[R16:[0-9]+]], $[[R15]], $[[R5]] |
| |
| ; NO-SEB-SEH: sll $[[R17:[0-9]+]], $[[R16]], 24 |
| ; NO-SEB-SEH: sra $2, $[[R17]], 24 |
| |
| ; HAS-SEB-SEH: seb $2, $[[R16]] |
| } |
| |
| define signext i8 @AtomicLoadSub8(i8 signext %incr) nounwind { |
| entry: |
| %0 = atomicrmw sub i8* @y, i8 %incr monotonic |
| ret i8 %0 |
| |
| ; ALL-LABEL: AtomicLoadSub8: |
| |
| ; MIPS32-ANY: lw $[[R0:[0-9]+]], %got(y) |
| ; MIPS64-ANY: ld $[[R0:[0-9]+]], %got_disp(y)( |
| |
| ; ALL: addiu $[[R1:[0-9]+]], $zero, -4 |
| ; ALL: and $[[R2:[0-9]+]], $[[R0]], $[[R1]] |
| ; ALL: andi $[[R3:[0-9]+]], $[[R0]], 3 |
| ; CHECK-EL: sll $[[R5:[0-9]+]], $[[R3]], 3 |
| ; CHECK-EB: xori $[[R4:[0-9]+]], $[[R3]], 3 |
| ; CHECK-EB: sll $[[R5:[0-9]+]], $[[R4]], 3 |
| ; ALL: ori $[[R6:[0-9]+]], $zero, 255 |
| ; ALL: sllv $[[R7:[0-9]+]], $[[R6]], $[[R5]] |
| ; ALL: nor $[[R8:[0-9]+]], $zero, $[[R7]] |
| ; ALL: sllv $[[R9:[0-9]+]], $4, $[[R5]] |
| |
| ; ALL: $[[BB0:[A-Z_0-9]+]]: |
| ; ALL: ll $[[R10:[0-9]+]], 0($[[R2]]) |
| ; ALL: subu $[[R11:[0-9]+]], $[[R10]], $[[R9]] |
| ; ALL: and $[[R12:[0-9]+]], $[[R11]], $[[R7]] |
| ; ALL: and $[[R13:[0-9]+]], $[[R10]], $[[R8]] |
| ; ALL: or $[[R14:[0-9]+]], $[[R13]], $[[R12]] |
| ; ALL: sc $[[R14]], 0($[[R2]]) |
| ; ALL: beqz $[[R14]], $[[BB0]] |
| |
| ; ALL: and $[[R15:[0-9]+]], $[[R10]], $[[R7]] |
| ; ALL: srlv $[[R16:[0-9]+]], $[[R15]], $[[R5]] |
| |
| ; NO-SEB-SEH: sll $[[R17:[0-9]+]], $[[R16]], 24 |
| ; NO-SEB-SEH: sra $2, $[[R17]], 24 |
| |
| ; HAS-SEB-SEH:seb $2, $[[R16]] |
| } |
| |
| define signext i8 @AtomicLoadNand8(i8 signext %incr) nounwind { |
| entry: |
| %0 = atomicrmw nand i8* @y, i8 %incr monotonic |
| ret i8 %0 |
| |
| ; ALL-LABEL: AtomicLoadNand8: |
| |
| ; MIPS32-ANY: lw $[[R0:[0-9]+]], %got(y) |
| ; MIPS64-ANY: ld $[[R0:[0-9]+]], %got_disp(y)( |
| |
| ; ALL: addiu $[[R1:[0-9]+]], $zero, -4 |
| ; ALL: and $[[R2:[0-9]+]], $[[R0]], $[[R1]] |
| ; ALL: andi $[[R3:[0-9]+]], $[[R0]], 3 |
| ; CHECK-EL: sll $[[R5:[0-9]+]], $[[R3]], 3 |
| ; CHECK-EB: xori $[[R4:[0-9]+]], $[[R3]], 3 |
| ; CHECK-EB: sll $[[R5:[0-9]+]], $[[R4]], 3 |
| ; ALL: ori $[[R6:[0-9]+]], $zero, 255 |
| ; ALL: sllv $[[R7:[0-9]+]], $[[R6]], $[[R5]] |
| ; ALL: nor $[[R8:[0-9]+]], $zero, $[[R7]] |
| ; ALL: sllv $[[R9:[0-9]+]], $4, $[[R5]] |
| |
| ; ALL: $[[BB0:[A-Z_0-9]+]]: |
| ; ALL: ll $[[R10:[0-9]+]], 0($[[R2]]) |
| ; ALL: and $[[R18:[0-9]+]], $[[R10]], $[[R9]] |
| ; ALL: nor $[[R11:[0-9]+]], $zero, $[[R18]] |
| ; ALL: and $[[R12:[0-9]+]], $[[R11]], $[[R7]] |
| ; ALL: and $[[R13:[0-9]+]], $[[R10]], $[[R8]] |
| ; ALL: or $[[R14:[0-9]+]], $[[R13]], $[[R12]] |
| ; ALL: sc $[[R14]], 0($[[R2]]) |
| ; ALL: beqz $[[R14]], $[[BB0]] |
| |
| ; ALL: and $[[R15:[0-9]+]], $[[R10]], $[[R7]] |
| ; ALL: srlv $[[R16:[0-9]+]], $[[R15]], $[[R5]] |
| |
| ; NO-SEB-SEH: sll $[[R17:[0-9]+]], $[[R16]], 24 |
| ; NO-SEB-SEH: sra $2, $[[R17]], 24 |
| |
| ; HAS-SEB-SEH: seb $2, $[[R16]] |
| } |
| |
| define signext i8 @AtomicSwap8(i8 signext %newval) nounwind { |
| entry: |
| %0 = atomicrmw xchg i8* @y, i8 %newval monotonic |
| ret i8 %0 |
| |
| ; ALL-LABEL: AtomicSwap8: |
| |
| ; MIPS32-ANY: lw $[[R0:[0-9]+]], %got(y) |
| ; MIPS64-ANY: ld $[[R0:[0-9]+]], %got_disp(y)( |
| |
| ; ALL: addiu $[[R1:[0-9]+]], $zero, -4 |
| ; ALL: and $[[R2:[0-9]+]], $[[R0]], $[[R1]] |
| ; ALL: andi $[[R3:[0-9]+]], $[[R0]], 3 |
| ; CHECK-EL: sll $[[R5:[0-9]+]], $[[R3]], 3 |
| ; CHECK-EB: xori $[[R4:[0-9]+]], $[[R3]], 3 |
| ; CHECK-EB: sll $[[R5:[0-9]+]], $[[R4]], 3 |
| ; ALL: ori $[[R6:[0-9]+]], $zero, 255 |
| ; ALL: sllv $[[R7:[0-9]+]], $[[R6]], $[[R5]] |
| ; ALL: nor $[[R8:[0-9]+]], $zero, $[[R7]] |
| ; ALL: sllv $[[R9:[0-9]+]], $4, $[[R5]] |
| |
| ; ALL: $[[BB0:[A-Z_0-9]+]]: |
| ; ALL: ll $[[R10:[0-9]+]], 0($[[R2]]) |
| ; ALL: and $[[R18:[0-9]+]], $[[R9]], $[[R7]] |
| ; ALL: and $[[R13:[0-9]+]], $[[R10]], $[[R8]] |
| ; ALL: or $[[R14:[0-9]+]], $[[R13]], $[[R18]] |
| ; ALL: sc $[[R14]], 0($[[R2]]) |
| ; ALL: beqz $[[R14]], $[[BB0]] |
| |
| ; ALL: and $[[R15:[0-9]+]], $[[R10]], $[[R7]] |
| ; ALL: srlv $[[R16:[0-9]+]], $[[R15]], $[[R5]] |
| |
| ; NO-SEB-SEH: sll $[[R17:[0-9]+]], $[[R16]], 24 |
| ; NO-SEB-SEH: sra $2, $[[R17]], 24 |
| |
| ; HAS-SEB-SEH: seb $2, $[[R16]] |
| |
| } |
| |
| define signext i8 @AtomicCmpSwap8(i8 signext %oldval, i8 signext %newval) nounwind { |
| entry: |
| %pair0 = cmpxchg i8* @y, i8 %oldval, i8 %newval monotonic monotonic |
| %0 = extractvalue { i8, i1 } %pair0, 0 |
| ret i8 %0 |
| |
| ; ALL-LABEL: AtomicCmpSwap8: |
| |
| ; MIPS32-ANY: lw $[[R0:[0-9]+]], %got(y) |
| ; MIPS64-ANY: ld $[[R0:[0-9]+]], %got_disp(y)( |
| |
| ; ALL: addiu $[[R1:[0-9]+]], $zero, -4 |
| ; ALL: and $[[R2:[0-9]+]], $[[R0]], $[[R1]] |
| ; ALL: andi $[[R3:[0-9]+]], $[[R0]], 3 |
| ; CHECK-EL: sll $[[R5:[0-9]+]], $[[R3]], 3 |
| ; CHECK-EB: xori $[[R4:[0-9]+]], $[[R3]], 3 |
| ; CHECK-EB: sll $[[R5:[0-9]+]], $[[R4]], 3 |
| ; ALL: ori $[[R6:[0-9]+]], $zero, 255 |
| ; ALL: sllv $[[R7:[0-9]+]], $[[R6]], $[[R5]] |
| ; ALL: nor $[[R8:[0-9]+]], $zero, $[[R7]] |
| ; ALL: andi $[[R9:[0-9]+]], $4, 255 |
| ; ALL: sllv $[[R10:[0-9]+]], $[[R9]], $[[R5]] |
| ; ALL: andi $[[R11:[0-9]+]], $5, 255 |
| ; ALL: sllv $[[R12:[0-9]+]], $[[R11]], $[[R5]] |
| |
| ; ALL: $[[BB0:[A-Z_0-9]+]]: |
| ; ALL: ll $[[R13:[0-9]+]], 0($[[R2]]) |
| ; ALL: and $[[R14:[0-9]+]], $[[R13]], $[[R7]] |
| ; ALL: bne $[[R14]], $[[R10]], $[[BB1:[A-Z_0-9]+]] |
| |
| ; ALL: and $[[R15:[0-9]+]], $[[R13]], $[[R8]] |
| ; ALL: or $[[R16:[0-9]+]], $[[R15]], $[[R12]] |
| ; ALL: sc $[[R16]], 0($[[R2]]) |
| ; ALL: beqz $[[R16]], $[[BB0]] |
| |
| ; ALL: $[[BB1]]: |
| ; ALL: srlv $[[R17:[0-9]+]], $[[R14]], $[[R5]] |
| |
| ; NO-SEB-SEH: sll $[[R18:[0-9]+]], $[[R17]], 24 |
| ; NO-SEB-SEH: sra $2, $[[R18]], 24 |
| |
| ; HAS-SEB-SEH: seb $2, $[[R17]] |
| } |
| |
| define i1 @AtomicCmpSwapRes8(i8* %ptr, i8 %oldval, i8 signext %newval) nounwind { |
| entry: |
| %0 = cmpxchg i8* %ptr, i8 %oldval, i8 %newval monotonic monotonic |
| %1 = extractvalue { i8, i1 } %0, 1 |
| ret i1 %1 |
| ; ALL-LABEL: AtomicCmpSwapRes8 |
| |
| ; ALL: addiu $[[R1:[0-9]+]], $zero, -4 |
| ; ALL: and $[[R2:[0-9]+]], $4, $[[R1]] |
| ; ALL: andi $[[R3:[0-9]+]], $4, 3 |
| ; CHECK-EL: sll $[[R5:[0-9]+]], $[[R3]], 3 |
| ; CHECK-EB: xori $[[R4:[0-9]+]], $[[R3]], 3 |
| ; CHECK-EB: sll $[[R5:[0-9]+]], $[[R4]], 3 |
| ; ALL: ori $[[R6:[0-9]+]], $zero, 255 |
| ; ALL: sllv $[[R7:[0-9]+]], $[[R6]], $[[R5]] |
| ; ALL: nor $[[R8:[0-9]+]], $zero, $[[R7]] |
| ; ALL: andi $[[R9:[0-9]+]], $5, 255 |
| ; ALL: sllv $[[R10:[0-9]+]], $[[R9]], $[[R5]] |
| ; ALL: andi $[[R11:[0-9]+]], $6, 255 |
| ; ALL: sllv $[[R12:[0-9]+]], $[[R11]], $[[R5]] |
| |
| ; ALL: $[[BB0:[A-Z_0-9]+]]: |
| ; ALL: ll $[[R13:[0-9]+]], 0($[[R2]]) |
| ; ALL: and $[[R14:[0-9]+]], $[[R13]], $[[R7]] |
| ; ALL: bne $[[R14]], $[[R10]], $[[BB1:[A-Z_0-9]+]] |
| |
| ; ALL: and $[[R15:[0-9]+]], $[[R13]], $[[R8]] |
| ; ALL: or $[[R16:[0-9]+]], $[[R15]], $[[R12]] |
| ; ALL: sc $[[R16]], 0($[[R2]]) |
| ; ALL: beqz $[[R16]], $[[BB0]] |
| |
| ; ALL: $[[BB1]]: |
| ; ALL: srlv $[[R17:[0-9]+]], $[[R14]], $[[R5]] |
| |
| ; NO-SEB-SEH: sll $[[R18:[0-9]+]], $[[R17]], 24 |
| ; NO-SEB-SEH: sra $[[R19:[0-9]+]], $[[R18]], 24 |
| |
| ; HAS-SEB-SEH: seb $[[R19:[0-9]+]], $[[R17]] |
| |
| ; ALL: xor $[[R20:[0-9]+]], $[[R19]], $5 |
| ; ALL: sltiu $2, $[[R20]], 1 |
| } |
| |
| ; Check one i16 so that we cover the seh sign extend |
| @z = common global i16 0, align 1 |
| |
| define signext i16 @AtomicLoadAdd16(i16 signext %incr) nounwind { |
| entry: |
| %0 = atomicrmw add i16* @z, i16 %incr monotonic |
| ret i16 %0 |
| |
| ; ALL-LABEL: AtomicLoadAdd16: |
| |
| ; MIPS32-ANY: lw $[[R0:[0-9]+]], %got(z) |
| ; MIPS64-ANY: ld $[[R0:[0-9]+]], %got_disp(z)( |
| |
| ; ALL: addiu $[[R1:[0-9]+]], $zero, -4 |
| ; ALL: and $[[R2:[0-9]+]], $[[R0]], $[[R1]] |
| ; ALL: andi $[[R3:[0-9]+]], $[[R0]], 3 |
| ; CHECK-EB: xori $[[R4:[0-9]+]], $[[R3]], 2 |
| ; CHECK-EB: sll $[[R5:[0-9]+]], $[[R4]], 3 |
| ; CHECK-EL: sll $[[R5:[0-9]+]], $[[R3]], 3 |
| ; ALL: ori $[[R6:[0-9]+]], $zero, 65535 |
| ; ALL: sllv $[[R7:[0-9]+]], $[[R6]], $[[R5]] |
| ; ALL: nor $[[R8:[0-9]+]], $zero, $[[R7]] |
| ; ALL: sllv $[[R9:[0-9]+]], $4, $[[R5]] |
| |
| ; ALL: $[[BB0:[A-Z_0-9]+]]: |
| ; ALL: ll $[[R10:[0-9]+]], 0($[[R2]]) |
| ; ALL: addu $[[R11:[0-9]+]], $[[R10]], $[[R9]] |
| ; ALL: and $[[R12:[0-9]+]], $[[R11]], $[[R7]] |
| ; ALL: and $[[R13:[0-9]+]], $[[R10]], $[[R8]] |
| ; ALL: or $[[R14:[0-9]+]], $[[R13]], $[[R12]] |
| ; ALL: sc $[[R14]], 0($[[R2]]) |
| ; ALL: beqz $[[R14]], $[[BB0]] |
| |
| ; ALL: and $[[R15:[0-9]+]], $[[R10]], $[[R7]] |
| ; ALL: srlv $[[R16:[0-9]+]], $[[R15]], $[[R5]] |
| |
| ; NO-SEB-SEH: sll $[[R17:[0-9]+]], $[[R16]], 16 |
| ; NO-SEB-SEH: sra $2, $[[R17]], 16 |
| |
| ; MIPS32R2: seh $2, $[[R16]] |
| } |
| |
| |
| @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 |
| |
| ; ALL-LABEL: CheckSync: |
| |
| ; ALL: sync |
| ; ALL: ll |
| ; ALL: sc |
| ; ALL: beq |
| ; ALL: sync |
| } |
| |
| ; 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: |
| %pair0 = cmpxchg i32* @a, i32 1, i32 0 seq_cst seq_cst |
| %0 = extractvalue { i32, i1 } %pair0, 0 |
| %1 = icmp eq i32 %0, 1 |
| %conv = zext i1 %1 to i32 |
| ret i32 %conv |
| } |
| |
| ; Check that MIPS32R6 has the correct offset range. |
| ; FIXME: At the moment, we don't seem to do addr+offset for any atomic load/store. |
| define i32 @AtomicLoadAdd32_OffGt9Bit(i32 %incr) nounwind { |
| entry: |
| %0 = atomicrmw add i32* getelementptr(i32* @x, i32 256), i32 %incr monotonic |
| ret i32 %0 |
| |
| ; ALL-LABEL: AtomicLoadAdd32_OffGt9Bit: |
| |
| ; MIPS32-ANY: lw $[[R0:[0-9]+]], %got(x) |
| ; MIPS64-ANY: ld $[[R0:[0-9]+]], %got_disp(x)( |
| |
| ; ALL: addiu $[[PTR:[0-9]+]], $[[R0]], 1024 |
| ; ALL: $[[BB0:[A-Z_0-9]+]]: |
| ; ALL: ll $[[R1:[0-9]+]], 0($[[PTR]]) |
| ; ALL: addu $[[R2:[0-9]+]], $[[R1]], $4 |
| ; ALL: sc $[[R2]], 0($[[PTR]]) |
| ; ALL: beqz $[[R2]], $[[BB0]] |
| } |
