--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/components/zlib/capabilities/sun4v/sparcv9/longest_match_t4.s Wed May 23 01:05:52 2012 -0700
@@ -0,0 +1,279 @@
+!
+! This file was generated by a compiler that is currently not part of the CBE
+! (as the CBE compiler does not generate code for the T4 architecture), and
+! then it was modified by hand to remove some unnecessary instructions that
+! the compiler generated and the main loop's branches was rearranged for
+! fewer taken branches on the most frequent code path. These modifications
+! were made in 7 steps. In each step, a few lines were removed from and added
+! to the compiler generated code to produce an equivalent binary. The lines
+! that were removed in step <i> are marked by "!<i>" at the beginning of the
+! line, the lines added in this step are marked by the same added at the end of
+! the line. In other words, let C_i mean the code, after step <i> (C_0 is
+! the original, compiler generated code, C_7 is the code in this file)
+! To reproduce C_i (0 <= i < 7) first take C_<i+1>, remove the lines that
+! end in !<i+1>, and then remove the !<i+1> string from the beginning of those
+! lines that start with it. Comparing C_i and C_<i+1> is a simple task, as
+! only a few lines have changed.
+! If a compiler (e.g. the Oracle Studio 12.3) becomes part of the CBE and
+! it will be able to generate as efficient code as in this file the
+! longest_match.o file can simply be comp[iled from longest_match.c .
+!
+
+ .section ".text",#alloc,#execinstr,#progbits
+ .file "deflate-t4.c"
+
+ .section ".bss",#alloc,#write,#nobits
+
+Bbss.bss:
+
+ .section ".data",#alloc,#write,#progbits
+
+Ddata.data:
+
+ .section ".rodata",#alloc,#progbits
+!
+! CONSTANT POOL
+!
+
+Drodata.rodata:
+
+ .section ".picdata",#alloc,#write
+
+Dpicdata.picdata:
+
+ .section ".tbss",#alloc,#write,#tls,#nobits
+
+Ttbss.bss:
+
+ .section ".tdata",#alloc,#write,#tls,#progbits
+
+Ttdata.data:
+
+ .section ".rodata1",#alloc,#progbits
+ .align 8
+!
+! CONSTANT POOL
+!
+
+.L95:
+ .ascii "invalid distance too far back\000"
+ .align 8
+!
+! CONSTANT POOL
+!
+
+.L147:
+ .ascii "invalid distance code\000"
+ .align 8
+!
+! CONSTANT POOL
+!
+
+.L153:
+ .ascii "invalid literal/length code\000"
+
+ .section ".text",#alloc,#execinstr,#progbits
+/* 000000 0 */ .align 4
+! FILE deflate-t4.c
+
+! 1 !#include <sun_prefetch.h>
+! 2 !#include "deflate.h"
+! 3 !#define NIL 0
+! 5 !uInt longest_match(s, cur_match)
+! 6 ! deflate_state *s;
+! 7 ! IPos cur_match; /* current match */
+! 8 !{
+
+!
+! SUBROUTINE longest_match
+!
+! OFFSET SOURCE LINE LABEL INSTRUCTION
+
+ .global longest_match
+
+
+ longest_match:
+
+ .L900000112:
+ save %sp, -0xb0, %sp
+ ld [%i0 + 0x4c], %l4 !7
+ ldn [%i0 + 0x60], %l5 !7
+ and %i1, %l4, %l2 !7
+ prefetch [%i5 + %l2], #n_reads !7
+!7 ld [%i0 + 0x9c], %l4
+ ld [%i0 + 0x9c], %l1 !7
+ ld [%i0 + 0x44], %l6
+ clr %g4
+ ldn [%i0 + 0x50], %g1
+ ld [%i0 + 0xa8], %i2
+ ld [%i0 + 0xac], %g5
+ ld [%i0 + 0xc0], %o0
+!5 srl %l4, 0x0, %l5
+ ld [%i0 + 0xbc], %l7
+ add %l6, -0x106, %i3
+!5 add %g1, %l5, %i4
+!7 add %g1, %l4, %i4 !5
+ add %g1, %l1, %i4 !7
+!7 cwbleu %l4, %i3, lm_0x38
+ cwbleu %l1, %i3, lm_0x38 !7
+!7 sub %l4, %i3, %g4
+ sub %l1, %i3, %g4 !7
+
+lm_0x38:
+!7 ld [%i0 + 0x4c], %l4
+!4 add %i2, -0x1, %l3
+!7 ldn [%i0 + 0x60], %l5
+!4 sra %l3, 0x0, %o2
+ add %i2, -0x1, %o2 !4
+ ldub [%i4 + %o2], %o2
+!3 sra %i2, 0x0, %l6
+!3 ldub [%i4 + %l6], %o1
+ ldub [%i4 + %i2], %o1 !3
+ cmp %i2, %l7
+ add %i4, 0x102, %l7
+ ld [%i0 + 0xa4], %i3
+ bcs,pn %icc, lm_0x6c
+ mov 0x102, %l3
+
+ srl %g5, 0x2, %g5
+
+lm_0x6c:
+ cmp %o0, %i3
+!6 srl %i1, 0x0, %l0
+!7 and %i1, %l4, %l2 !6
+ movgu %icc, %i3, %o0
+
+lm_0x78:
+!6 and %i1, %l4, %l2
+!6 add %l0, %g1, %o3
+ add %i1, %g1, %o3 !6
+!3 ldub [%o3 + %l6], %o5
+ ldub [%o3 + %i2], %o5 !3
+!1 srl %l2, 0x0, %o4
+!1 sllx %o4, 0x1, %l2
+ sllx %l2, 0x1, %l2 !1
+ add %l2, %l5, %l1 !1
+ prefetch [%l1 - 0x40], #n_reads !1
+ cwbe %o5, %o1, lm_0x17c_neg
+
+lm_0x17c:
+ lduh [%l5 + %l2], %i1
+ cwbleu %i1, %g4, lm_0x190
+
+ addcc %g5, -0x1, %g5
+ bne,pt %icc, lm_0x78
+!6 srl %i1, 0x0, %l0
+ and %i1, %l4, %l2 !6
+
+lm_0x190:
+ cmp %i2, %i3
+ movgu %icc, %i3, %i2
+ return %i7 + 0x8
+ srl %o2, 0x0, %o0
+
+lm_0x17c_neg:
+!3 add %o3, %l6, %o7
+ add %o3, %i2, %o7 !3
+ ldub [%o7 - 0x1], %l1
+ cwbne %l1, %o2, lm_0x17c
+
+!6 ldub [%g1 + %l0], %i5
+ ldub [%g1 + %i1], %i5 !6
+ ldub [%i4], %o5
+ cwbne %i5, %o5, lm_0x17c
+
+ ldub [%i4 + 0x1], %l1
+ ldub [%o3 + 0x1], %o4
+ cwbne %o4, %l1, lm_0x17c
+
+ add %o3, 0x2, %o3
+!1 add %l2, %l5, %l1
+ add %i4, 0x2, %o4
+
+lm_0xc0:
+ ldub [%o4 + 0x1], %l0
+ add %o4, 0x1, %o4
+ ldub [%o3 + 0x1], %o7
+ cwbne %l0, %o7, lm_0x14c
+
+ ldub [%o4 + 0x1], %i5
+ add %o4, 0x1, %o4
+ ldub [%o3 + 0x2], %o5
+ cwbne %i5, %o5, lm_0x14c
+
+ ldub [%o4 + 0x1], %l0
+ add %o4, 0x1, %o4
+ ldub [%o3 + 0x3], %o7
+ cwbne %l0, %o7, lm_0x14c
+
+ ldub [%o4 + 0x1], %i5
+ add %o4, 0x1, %o4
+ ldub [%o3 + 0x4], %o5
+ cwbne %i5, %o5, lm_0x14c
+
+ ldub [%o4 + 0x1], %l0
+ add %o4, 0x1, %o4
+ ldub [%o3 + 0x5], %o7
+ cwbne %l0, %o7, lm_0x14c
+
+ ldub [%o4 + 0x1], %i5
+ add %o4, 0x1, %o4
+ ldub [%o3 + 0x6], %o5
+ cwbne %i5, %o5, lm_0x14c
+
+ ldub [%o4 + 0x1], %l0
+ add %o4, 0x1, %o4
+ ldub [%o3 + 0x7], %o7
+ cwbne %l0, %o7, lm_0x14c
+
+ ldub [%o4 + 0x1], %i5
+ add %o4, 0x1, %o4
+ ldub [%o3 + 0x8], %o5
+ add %o3, 0x8, %o3
+ cwbne %i5, %o5, lm_0x14c
+
+ nop
+ cxbcs %o4, %l7, lm_0xc0
+
+lm_0x14c:
+!1 prefetch [%l1 - 0x40], #n_reads
+ sub %l7, %o4, %l0
+ sub %l3, %l0, %o7
+ cwble %o7, %i2, lm_0x17c
+
+ st %i1, [%i0 + 0xa0]
+ mov %o7, %i2
+ cwbge %o7, %o0, lm_0x190
+
+!2 sra %o7, 0x0, %i1
+!3 sra %o7, 0x0, %l6
+!2 add %i4, %i1, %l1
+ add %i4, %o7, %l1 !2
+!2 ldub [%i4 + %i1], %o1
+ ldub [%i4 + %o7], %o1 !2
+ ba lm_0x17c
+ ldub [%l1 - 0x1], %o2
+
+
+/* 0x0220 0 */ .type longest_match,#function
+/* 0x0220 0 */ .size longest_match,(.-longest_match)
+
+
+ .L900000113:
+
+ .section ".text",#alloc,#execinstr,#progbits
+/* 000000 0 */ .align 8
+/* 000000 */ .skip 24
+/* 0x0018 */ .align 4
+
+
+ .L900000286:
+
+ .section ".text",#alloc,#execinstr,#progbits
+
+! Begin Disassembling Ident
+ .ident "cg: Sun Compiler Common 12.3 SunOS_sparc 2011/11/16" ! (NO SOURCE LINE)
+ .ident "acomp: Sun C 5.12 SunOS_sparc 2011/11/16" ! (/tmp/acomp.1329237379.172468.02.sd:24)
+ .ident "iropt: Sun Compiler Common 12.3 SunOS_sparc 2011/11/16" ! (/tmp/acomp.1329237379.172468.02.sd:25)
+ .ident "cg: Sun Compiler Common 12.3 SunOS_sparc 2011/11/16" ! (NO SOURCE LINE)
+! End Disassembling Ident