func (c *sigctxt) r29() uint32       { return uint32(c.regs().sc_regs[29]) }
func (c *sigctxt) r30() uint32       { return uint32(c.regs().sc_regs[30]) }
func (c *sigctxt) r31() uint32       { return uint32(c.regs().sc_regs[31]) }
func (c *sigctxt) sp() uint32        { return uint32(c.regs().sc_regs[29]) }
func (c *sigctxt) pc() uint32        { return uint32(c.regs().sc_pc) }

	// should never return
	JAL	runtime·abort(SB)
	UNDEF

/*
 * support for morestack
 */

// Called during function prolog when more stack is needed.
// Caller has already loaded:
// loong64: R31: LR
//
// The traceback routines see morestack on a g0 as being
// the top of a stack (for example, morestack calling newstack
// calling the scheduler calling newm calling gc), so we must

	VMOVH	-70(R12), W3   // 7bdd60e1
	VMOVW	(R3), W31      // 78001fe2
	VMOVW	64(R20), W16   // 7810a422
	VMOVW	-104(R17), W24 // 7be68e22
	VMOVD	(R3), W2       // 780018a3
	VMOVD	128(R23), W19  // 7810bce3
	VMOVD	-256(R31), W0  // 7be0f823

	VMOVB	W8, (R0)       // 78000224
	VMOVB	W0, 511(R3)    // 79ff1824
	VMOVB	W21, -512(R12) // 7a006564
	VMOVH	W12, (R24)     // 7800c325
	VMOVH	W8, 110(R19)   // 78379a25

 */

package org.gradle.plugins.ide.tooling.r68

import org.gradle.integtests.tooling.fixture.TargetGradleVersion
import org.gradle.integtests.tooling.fixture.ToolingApiSpecification
import org.gradle.plugins.ide.tooling.r31.IdeaProjectUtil
import org.gradle.plugins.ide.tooling.r33.FetchEclipseProjects

@TargetGradleVersion(">=6.8")
class CompositeBuildModuleNamesCrossVersionSpec extends ToolingApiSpecification {

	CMPU	R4,$2
	BLT	cmp1

	_LHBEX	(R0)(R3),R10
	CMPB	R10,R5,R10
	SLDCC	$48,R10,R10
	CNTLZD	R10,R10
	SRD	$3,R10,R3
	BNE	found

cmp1:	// Length 1
	MOVD	$-1,R3
	ANDCC	$1,R4,R31
	BEQ	found

	MOVBZ	-1(R9),R10
	CMPB	R10,R5,R10
	ANDCC	$1,R10
	ADD	$-1,R4
	ISEL	CR0EQ,R3,R4,R3

found:
	RET
#endif

notfound:
	MOVD $-1,R3

	// If no traceback support function, which means that
	// runtime/cgo was not linked in, do usual sigtramp.
	MOVD	_cgo_callers(SB), R6
	CMP	$0, R6
	BEQ	sigtramp

	// Inspect the g in TLS without clobbering R30/R31 via runtime.load_g.
	MOVD	runtime·tls_g(SB), R9
	MOVD	0(R9), R9

	// Figure out if we are currently in a cgo call.
	// If not, just do usual sigtramp.
	// compared to ARM64 and others.
	CMP	$0, R9

	VEXTRACTHM V1, R2                       // 10490e42
	VEXTRACTQM V1, R2                       // 104c0e42
	VEXTRACTWM V1, R6                       // 10ca0e42
	VEXTSD2Q V1, V2                         // 105b0e02
	VGNB V1, $1, R31                        // 13e10ccc
	VINSBLX R1, R2, V3                      // 1061120f
	VINSBRX R1, R2, V3                      // 1061130f
	VINSBVLX R1, V1, V2                     // 1041080f

        }

        checkIdeaProject(ideaModel, originalIdeaModel)
    }

    // This test mostly reproduces `org.gradle.plugins.ide.tooling.r31.PersistentCompositeDependencySubstitutionCrossVersionSpec.ensures unique name for all Idea modules in composite`
    def "ensures unique name for all Idea modules in composite"() {
        singleProjectBuildInRootDir("buildA") {

	"R14",
	"R15",
	"R16",
	"R17",
	"R18",
	"R19",
	"R20",
	"R21",
	"g", // aka R22
	"R23",
	"R24",
	"R25",
	"R26",
	"R27",
	"R28",
	"R29",
	// R30 is REGTMP not used in regalloc
	"R31",

	"F0",
	"F1",
	"F2",
	"F3",
	"F4",
	"F5",
	"F6",
	"F7",
	"F8",
	"F9",
	"F10",
	"F11",
	"F12",
	"F13",
	"F14",
	"F15",
	"F16",
	"F17",
	"F18",
	"F19",

	MOVV	fn+0(FP), R25		// Must use R25, needed for PIC code.
	CALL	(R25)
	RET

TEXT runtime·sigtramp(SB),NOSPLIT|TOPFRAME,$192
	// initialize REGSB = PC&0xffffffff00000000
	BGEZAL	R0, 1(PC)
	SRLV	$32, R31, RSB
	SLLV	$32, RSB

	// this might be called in external code context,
	// where g is not set.
	MOVB	runtime·iscgo(SB), R1
	BEQ	R1, 2(PC)
	JAL	runtime·load_g(SB)

	MOVW	R4, 8(R29)