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-rw-r--r--sysdeps/ia64/ia64libgcc.S350
1 files changed, 350 insertions, 0 deletions
diff --git a/sysdeps/ia64/ia64libgcc.S b/sysdeps/ia64/ia64libgcc.S
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+/* From the Intel IA-64 Optimization Guide, choose the minimum latency
+   alternative.  */
+
+#include <sysdep.h>
+#undef ret
+
+#include <shlib-compat.h>
+
+#if SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_2_6)
+
+/* __divtf3
+   Compute a 80-bit IEEE double-extended quotient.
+   farg0 holds the dividend.  farg1 holds the divisor.  */
+
+ENTRY(___divtf3)
+	cmp.eq p7, p0 = r0, r0
+	frcpa.s0 f10, p6 = farg0, farg1
+	;;
+(p6)	cmp.ne p7, p0 = r0, r0
+	.pred.rel.mutex p6, p7
+(p6)	fnma.s1 f11 = farg1, f10, f1
+(p6)	fma.s1 f12 = farg0, f10, f0
+	;;
+(p6)	fma.s1 f13 = f11, f11, f0
+(p6)	fma.s1 f14 = f11, f11, f11
+	;;
+(p6)	fma.s1 f11 = f13, f13, f11
+(p6)	fma.s1 f13 = f14, f10, f10
+	;;
+(p6)	fma.s1 f10 = f13, f11, f10
+(p6)	fnma.s1 f11 = farg1, f12, farg0
+	;;
+(p6)	fma.s1 f11 = f11, f10, f12
+(p6)	fnma.s1 f12 = farg1, f10, f1
+	;;
+(p6)	fma.s1 f10 = f12, f10, f10
+(p6)	fnma.s1 f12 = farg1, f11, farg0
+	;;
+(p6)	fma.s0 fret0 = f12, f10, f11
+(p7)	mov fret0 = f10
+	br.ret.sptk rp
+END(___divtf3)
+	.symver ___divtf3, __divtf3@GLIBC_2.2
+
+/* __divdf3
+   Compute a 64-bit IEEE double quotient.
+   farg0 holds the dividend.  farg1 holds the divisor.  */
+
+ENTRY(___divdf3)
+	cmp.eq p7, p0 = r0, r0
+	frcpa.s0 f10, p6 = farg0, farg1
+	;;
+(p6)	cmp.ne p7, p0 = r0, r0
+	.pred.rel.mutex p6, p7
+(p6)	fmpy.s1 f11 = farg0, f10
+(p6)	fnma.s1 f12 = farg1, f10, f1
+	;;
+(p6)	fma.s1 f11 = f12, f11, f11
+(p6)	fmpy.s1 f13 = f12, f12
+	;;
+(p6)	fma.s1 f10 = f12, f10, f10
+(p6)	fma.s1 f11 = f13, f11, f11
+	;;
+(p6)	fmpy.s1 f12 = f13, f13
+(p6)	fma.s1 f10 = f13, f10, f10
+	;;
+(p6)	fma.d.s1 f11 = f12, f11, f11
+(p6)	fma.s1 f10 = f12, f10, f10
+	;;
+(p6)	fnma.d.s1 f8 = farg1, f11, farg0
+	;;
+(p6)	fma.d fret0 = f8, f10, f11
+(p7)	mov fret0 = f10
+	br.ret.sptk rp
+	;;
+END(___divdf3)
+	.symver	___divdf3, __divdf3@GLIBC_2.2
+
+/* __divsf3
+   Compute a 32-bit IEEE float quotient.
+   farg0 holds the dividend.  farg1 holds the divisor.  */
+
+ENTRY(___divsf3)
+	cmp.eq p7, p0 = r0, r0
+	frcpa.s0 f10, p6 = farg0, farg1
+	;;
+(p6)	cmp.ne p7, p0 = r0, r0
+	.pred.rel.mutex p6, p7
+(p6)	fmpy.s1 f8 = farg0, f10
+(p6)	fnma.s1 f9 = farg1, f10, f1
+	;;
+(p6)	fma.s1 f8 = f9, f8, f8
+(p6)	fmpy.s1 f9 = f9, f9
+	;;
+(p6)	fma.s1 f8 = f9, f8, f8
+(p6)	fmpy.s1 f9 = f9, f9
+	;;
+(p6)	fma.d.s1 f10 = f9, f8, f8
+	;;
+(p6)	fnorm.s.s0 fret0 = f10
+(p7)	mov fret0 = f10
+	br.ret.sptk rp
+	;;
+END(___divsf3)
+	.symver	___divsf3, __divsf3@GLIBC_2.2
+
+/* __divdi3
+   Compute a 64-bit integer quotient.
+   in0 holds the dividend.  in1 holds the divisor.  */
+
+ENTRY(___divdi3)
+	.regstk 2,0,0,0
+	/* Transfer inputs to FP registers.  */
+	setf.sig f8 = in0
+	setf.sig f9 = in1
+	;;
+	/* Convert the inputs to FP, so that they won't be treated as
+	   unsigned.  */
+	fcvt.xf f8 = f8
+	fcvt.xf f9 = f9
+	;;
+	/* Compute the reciprocal approximation.  */
+	frcpa.s1 f10, p6 = f8, f9
+	;;
+	/* 3 Newton-Raphson iterations.  */
+(p6)	fnma.s1 f11 = f9, f10, f1
+(p6)	fmpy.s1 f12 = f8, f10
+	;;
+(p6)	fmpy.s1 f13 = f11, f11
+(p6)	fma.s1 f12 = f11, f12, f12
+	;;
+(p6)	fma.s1 f10 = f11, f10, f10
+(p6)	fma.s1 f11 = f13, f12, f12
+	;;
+(p6)	fma.s1 f10 = f13, f10, f10
+(p6)	fnma.s1 f12 = f9, f11, f8
+	;;
+(p6)	fma.s1 f10 = f12, f10, f11
+	;;
+	/* Round quotient to an integer.  */
+	fcvt.fx.trunc.s1 f10 = f10
+	;;
+	/* Transfer result to GP registers.  */
+	getf.sig ret0 = f10
+	br.ret.sptk rp
+	;;
+END(___divdi3)
+	.symver	___divdi3, __divdi3@GLIBC_2.2
+
+/* __moddi3
+   Compute a 64-bit integer modulus.
+   in0 holds the dividend (a).  in1 holds the divisor (b).  */
+
+ENTRY(___moddi3)
+	.regstk 2,0,0,0
+	/* Transfer inputs to FP registers.  */
+	setf.sig f14 = in0
+	setf.sig f9 = in1
+	;;
+	/* Convert the inputs to FP, so that they won't be treated as
+	   unsigned.  */
+	fcvt.xf f8 = f14
+	fcvt.xf f9 = f9
+	;;
+	/* Compute the reciprocal approximation.  */
+	frcpa.s1 f10, p6 = f8, f9
+	;;
+	/* 3 Newton-Raphson iterations.  */
+(p6)	fmpy.s1 f12 = f8, f10
+(p6)	fnma.s1 f11 = f9, f10, f1
+	;;
+(p6)	fma.s1 f12 = f11, f12, f12
+(p6)	fmpy.s1 f13 = f11, f11
+	;;
+(p6)	fma.s1 f10 = f11, f10, f10
+(p6)	fma.s1 f11 = f13, f12, f12
+	;;
+	sub in1 = r0, in1
+(p6)	fma.s1 f10 = f13, f10, f10
+(p6)	fnma.s1 f12 = f9, f11, f8
+	;;
+	setf.sig f9 = in1
+(p6)	fma.s1 f10 = f12, f10, f11
+	;;
+	fcvt.fx.trunc.s1 f10 = f10
+	;;
+	/* r = q * (-b) + a  */
+	xma.l f10 = f10, f9, f14
+	;;
+	/* Transfer result to GP registers.  */
+	getf.sig ret0 = f10
+	br.ret.sptk rp
+	;;
+END(___moddi3)
+	.symver ___moddi3, __moddi3@GLIBC_2.2
+
+/* __udivdi3
+   Compute a 64-bit unsigned integer quotient.
+   in0 holds the dividend.  in1 holds the divisor.  */
+
+ENTRY(___udivdi3)
+	.regstk 2,0,0,0
+	/* Transfer inputs to FP registers.  */
+	setf.sig f8 = in0
+	setf.sig f9 = in1
+	;;
+	/* Convert the inputs to FP, to avoid FP software-assist faults.  */
+	fcvt.xuf.s1 f8 = f8
+	fcvt.xuf.s1 f9 = f9
+	;;
+	/* Compute the reciprocal approximation.  */
+	frcpa.s1 f10, p6 = f8, f9
+	;;
+	/* 3 Newton-Raphson iterations.  */
+(p6)	fnma.s1 f11 = f9, f10, f1
+(p6)	fmpy.s1 f12 = f8, f10
+	;;
+(p6)	fmpy.s1 f13 = f11, f11
+(p6)	fma.s1 f12 = f11, f12, f12
+	;;
+(p6)	fma.s1 f10 = f11, f10, f10
+(p6)	fma.s1 f11 = f13, f12, f12
+	;;
+(p6)	fma.s1 f10 = f13, f10, f10
+(p6)	fnma.s1 f12 = f9, f11, f8
+	;;
+(p6)	fma.s1 f10 = f12, f10, f11
+	;;
+	/* Round quotient to an unsigned integer.  */
+	fcvt.fxu.trunc.s1 f10 = f10
+	;;
+	/* Transfer result to GP registers.  */
+	getf.sig ret0 = f10
+	br.ret.sptk rp
+	;;
+END(___udivdi3)
+	.symver	___udivdi3, __udivdi3@GLIBC_2.2
+
+/* __umoddi3
+   Compute a 64-bit unsigned integer modulus.
+   in0 holds the dividend (a).  in1 holds the divisor (b).  */
+
+ENTRY(___umoddi3)
+	.regstk 2,0,0,0
+	/* Transfer inputs to FP registers.  */
+	setf.sig f14 = in0
+	setf.sig f9 = in1
+	;;
+	/* Convert the inputs to FP, to avoid FP software assist faults.  */
+	fcvt.xuf.s1 f8 = f14
+	fcvt.xuf.s1 f9 = f9
+	;;
+	/* Compute the reciprocal approximation.  */
+	frcpa.s1 f10, p6 = f8, f9
+	;;
+	/* 3 Newton-Raphson iterations.  */
+(p6)	fmpy.s1 f12 = f8, f10
+(p6)	fnma.s1 f11 = f9, f10, f1
+	;;
+(p6)	fma.s1 f12 = f11, f12, f12
+(p6)	fmpy.s1 f13 = f11, f11
+	;;
+(p6)	fma.s1 f10 = f11, f10, f10
+(p6)	fma.s1 f11 = f13, f12, f12
+	;;
+	sub in1 = r0, in1
+(p6)	fma.s1 f10 = f13, f10, f10
+(p6)	fnma.s1 f12 = f9, f11, f8
+	;;
+	setf.sig f9 = in1
+(p6)	fma.s1 f10 = f12, f10, f11
+	;;
+	/* Round quotient to an unsigned integer.  */
+	fcvt.fxu.trunc.s1 f10 = f10
+	;;
+	/* r = q * (-b) + a  */
+	xma.l f10 = f10, f9, f14
+	;;
+	/* Transfer result to GP registers.  */
+	getf.sig ret0 = f10
+	br.ret.sptk rp
+	;;
+END(___umoddi3)
+	.symver	___umoddi3, __umoddi3@GLIBC_2.2
+
+/* __multi3
+   Compute a 128-bit multiply of 128-bit multiplicands.
+   in0/in1 holds one multiplicand (a), in2/in3 holds the other one (b).  */
+
+ENTRY(___multi3)
+	.regstk 4,0,0,0
+	setf.sig f6 = in1
+	movl r19 = 0xffffffff
+	setf.sig f7 = in2
+	;;
+	and r14 = r19, in0
+	;;
+	setf.sig f10 = r14
+	and r14 = r19, in2
+	xmpy.l f9 = f6, f7
+	;;
+	setf.sig f6 = r14
+	shr.u r14 = in0, 32
+	;;
+	setf.sig f7 = r14
+	shr.u r14 = in2, 32
+	;;
+	setf.sig f8 = r14
+	xmpy.l f11 = f10, f6
+	xmpy.l f6 = f7, f6
+	;;
+	getf.sig r16 = f11
+	xmpy.l f7 = f7, f8
+	;;
+	shr.u r14 = r16, 32
+	and r16 = r19, r16
+	getf.sig r17 = f6
+	setf.sig f6 = in0
+	;;
+	setf.sig f11 = r14
+	getf.sig r21 = f7
+	setf.sig f7 = in3
+	;;
+	xma.l f11 = f10, f8, f11
+	xma.l f6 = f6, f7, f9
+	;;
+	getf.sig r18 = f11
+	;;
+	add r18 = r18, r17
+	;;
+	and r15 = r19, r18
+	cmp.ltu p7, p6 = r18, r17
+	;;
+	getf.sig r22 = f6
+(p7)	adds r14 = 1, r19
+	;;
+(p7)	add r21 = r21, r14
+	shr.u r14 = r18, 32
+	shl r15 = r15, 32
+	;;
+	add r20 = r21, r14
+	;;
+	add ret0 = r15, r16
+	add ret1 = r22, r20
+	br.ret.sptk rp
+	;;
+END(___multi3)
+	.symver	___multi3, __multi3@GLIBC_2.2
+
+#endif
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-11-11 21:05:00 +0000