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// Copyright 2021 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Test to make sure that if we use R15 after it is clobbered by // a global variable access while dynamic linking, we get an error. // See issue 43661. TEXT ·a1(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 MOVL $0, R15 RET TEXT ·a2(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 MOVQ $0, R15 RET TEXT ·a3(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 XORL R15, R15 RET TEXT ·a4(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 XORQ R15, R15 RET TEXT ·a5(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 XORL R15, R15 RET TEXT ·a6(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 POPQ R15 PUSHQ R15 RET TEXT ·a7(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 MOVQ R15, AX // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here" RET TEXT ·a8(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 ADDQ AX, R15 // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here" RET TEXT ·a9(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 ORQ R15, R15 // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here" RET TEXT ·a10(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 JEQ one ORQ R15, R15 // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here" one: RET TEXT ·a11(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 JEQ one JMP two one: ORQ R15, R15 // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here" two: RET TEXT ·a12(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 JMP one two: ORQ R15, R15 RET one: MOVL $0, R15 JMP two // Ensure 3-arg instructions get GOT-rewritten without errors. // See issue 58735. TEXT ·a13(SB), 0, $0-0 MULXQ runtime·writeBarrier(SB), AX, CX RET // Various special cases in the use-R15-after-global-access-when-dynlinking check. // See issue 58632. TEXT ·a14(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 MULXQ R15, AX, BX // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here" RET TEXT ·a15(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 MULXQ AX, R15, BX ADDQ $1, R15 RET TEXT ·a16(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 MULXQ AX, BX, R15 ADDQ $1, R15 RET TEXT ·a17(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 MOVQ (R15), AX // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here" RET TEXT ·a18(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 MOVQ (CX)(R15*1), AX // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here" RET TEXT ·a19(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 MOVQ AX, (R15) // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here" RET TEXT ·a20(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 MOVQ AX, (CX)(R15*1) // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here" RET TEXT ·a21(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 MOVBLSX AX, R15 ADDQ $1, R15 RET TEXT ·a22(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 PMOVMSKB X0, R15 ADDQ $1, R15 RET TEXT ·a23(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 LEAQ (AX)(CX*1), R15 RET TEXT ·a24(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 LEAQ (R15)(AX*1), AX // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here" RET TEXT ·a25(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 LEAQ (AX)(R15*1), AX // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here" RET TEXT ·a26(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 IMUL3Q $33, AX, R15 ADDQ $1, R15 RET TEXT ·a27(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 IMUL3Q $33, R15, AX // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here" RET TEXT ·a28(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 PEXTRD $0, X0, R15 ADDQ $1, R15 RET TEXT ·a29(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 VPEXTRD $0, X0, R15 ADDQ $1, R15 RET TEXT ·a30(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 BSFQ R15, AX // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here" RET TEXT ·a31(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 BSFQ AX, R15 ADDQ $1, R15 RET TEXT ·a32(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 POPCNTL R15, AX // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here" RET TEXT ·a33(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 POPCNTL AX, R15 ADDQ $1, R15 RET TEXT ·a34(SB), 0, $0-0 CMPL runtime·writeBarrier(SB), $0 SHLXQ AX, CX, R15 ADDQ $1, R15 RET