X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fdriver%2Fmangler%2Fghc-asm.lprl;h=6d227df7818017621c036b864af18f10b5021761;hb=3da1b42f573dca7b8a2000b18a88047c05cfb58a;hp=73d05b96d634fb3b0e190d8360e427d84a2ba0c8;hpb=f0e0a108cc121f9b0afdb4311f8b6849efb4c907;p=ghc-hetmet.git diff --git a/ghc/driver/mangler/ghc-asm.lprl b/ghc/driver/mangler/ghc-asm.lprl index 73d05b9..6d227df 100644 --- a/ghc/driver/mangler/ghc-asm.lprl +++ b/ghc/driver/mangler/ghc-asm.lprl @@ -96,8 +96,8 @@ sub init_TARGET_STUFF { $T_CONST_LBL = '^\$L?C(\d+):$'; # regexp for what such a lbl looks like $T_POST_LBL = ':'; - $T_MOVE_DIRVS = '^(\s*(\.align\s+\d+|\.(globl|ent)\s+\S+|\#.*|\.(file|loc)\s+\S+\s+\S+|\.text|\.r?data)\n)'; - $T_COPY_DIRVS = '^\s*(\#|\.(file|globl|ent|loc))'; + $T_MOVE_DIRVS = '^(\s*(\$.*\.\.ng:|\.align\s+\d+|\.(globl|ent)\s+\S+|\#.*|\.(file|loc)\s+\S+\s+\S+|\.text|\.r?data)\n)'; + $T_COPY_DIRVS = '^\s*(\$.*\.\.ng:|\#|\.(file|globl|ent|loc))'; $T_hsc_cc_PAT = '\.ascii.*\)(hsc|cc) (.*)\\\\11"\n\t\.ascii\s+"(.*)\\\\0"'; $T_DOT_WORD = '\.(long|quad|byte|word)'; @@ -188,8 +188,8 @@ sub init_TARGET_STUFF { $T_X86_PRE_LLBL = '.L'; $T_X86_BADJMP = '^\tjmp\s+[^\.\*]'; - $T_MOVE_DIRVS = '^(\s*(\.(p2)?align\s+\d+(,\s*0x90)?|\.globl\s+\S+|\.text|\.data|\.section\s+.*|\.type\s+.*|\.Lfe.*\n\s*\.size\s+.*|\.size\s+.*|\.ident.*)\n)'; - $T_COPY_DIRVS = '\.(globl)'; + $T_MOVE_DIRVS = '^(\s*(\.(p2)?align\s+\d+(,\s*0x90)?|\.globl\s+\S+|\.text|\.data|\.section\s+.*|\.type\s+.*|\.size\s+\S+,\d+|\.ident.*)\n)'; + $T_COPY_DIRVS = '^\s*\.(globl|type|size)'; if ( $TargetPlatform =~ /freebsd|netbsd/ ) { $T_hsc_cc_PAT = '\.ascii.*\)(hsc|cc) (.*)\\\\11"\n\t\.ascii\s+"(.*)\\\\0"'; @@ -213,6 +213,34 @@ sub init_TARGET_STUFF { $T_create_word = "\t.word"; #--------------------------------------------------------# + } elsif ( $TargetPlatform =~ /^ia64-.*-linux$/ ) { + + $T_STABBY = 0; # 1 iff .stab things (usually if a.out format) + $T_US = ''; # _ if symbols have an underscore on the front + $T_PRE_APP = '#'; + $T_CONST_LBL = '^\.LC(\d+):$'; # regexp for what such a lbl looks like + $T_POST_LBL = ':'; + + $T_MOVE_DIRVS = '^(\s*\.(global|proc|pred\.safe_across_calls|text|data|section|subsection|align|size|type|ident)\s+.*\n)'; + $T_COPY_DIRVS = '\.(global|proc)'; + + $T_hsc_cc_PAT = '\.string.*\)(hsc|cc) (.*)\\\\t(.*)"'; + $T_DOT_WORD = '\.(long|value|byte|zero)'; + $T_DOT_GLOBAL = '\.global'; + $T_HDR_literal = "\.section\t\.rodata\n"; + $T_HDR_misc = "\.text\n\t\.align 8\n"; + $T_HDR_data = "\.data\n\t\.align 8\n"; + $T_HDR_consist = "\.text\n"; + $T_HDR_closure = "\.data\n\t\.align 8\n"; + $T_HDR_srt = "\.text\n\t\.align 8\n"; + $T_HDR_info = "\.text\n\t\.align 8\n"; + $T_HDR_entry = "\.text\n\t\.align 16\n"; + $T_HDR_fast = "\.text\n\t\.align 16\n"; + $T_HDR_vector = "\.text\n\t\.align 8\n"; + $T_HDR_direct = "\.text\n\t\.align 8\n"; + $T_create_word = "\t.word"; + + #--------------------------------------------------------# } elsif ( $TargetPlatform =~ /^m68k-.*-sunos4/ ) { $T_STABBY = 1; # 1 iff .stab things (usually if a.out format) @@ -281,7 +309,7 @@ sub init_TARGET_STUFF { $T_COPY_DIRVS = '\.(globl)'; $T_hsc_cc_PAT = '\.byte.*\)(hsc|cc) (.*)"\n\t\.byte \d+\n\t\.byte "(.*)"\n\t\.byte \d+'; - $T_DOT_WORD = '\.(long|short|byte)'; + $T_DOT_WORD = '\.(long|short|byte|fill|space)'; $T_DOT_GLOBAL = '\.globl'; $T_HDR_toc = "\.toc\n"; $T_HDR_literal = "\t\.const_data\n\t\.align 2\n"; @@ -310,7 +338,7 @@ sub init_TARGET_STUFF { $T_COPY_DIRVS = '\.(global|proc|stab)'; $T_hsc_cc_PAT = '\.asciz.*\)(hsc|cc) (.*)\\\\t(.*)"'; - $T_DOT_WORD = '\.(word|byte|half|skip|uahalf|uaword)'; + $T_DOT_WORD = '\.(long|word|byte|half|skip|uahalf|uaword)'; $T_DOT_GLOBAL = '^\t\.global'; $T_HDR_literal = "\.text\n\t\.align 8\n"; $T_HDR_misc = "\.text\n\t\.align 4\n"; @@ -437,7 +465,7 @@ sub mangle_asm { next if /${T_PRE_APP}(NO_)?APP/o; next if /^;/ && $TargetPlatform =~ /^hppa/; - next if /(^$|^\t\.file\t|^ # )/ && $TargetPlatform =~ /^(mips)-/; + next if /(^$|^\t\.file\t|^ # )/ && $TargetPlatform =~ /^(mips|ia64)-/; if ( $TargetPlatform =~ /^mips-/ && /^\t\.(globl\S+\.text|comm\t)/ ) { @@ -585,7 +613,8 @@ sub mangle_asm { || ! /^L\$\d+$/ ) ) { local($thing); chop($thing = $_); - print STDERR "Funny global thing?: $_" + $thing =~ s/:$//; + print STDERR "Warning: retaining unknown function \`$thing' in output from C compiler\n" unless # $KNOWN_FUNNY_THING{$thing} /^${T_US}stg_.*${T_POST_LBL}$/o # RTS internals || /^${T_US}__stg_.*${T_POST_LBL}$/o # more RTS internals @@ -598,6 +627,31 @@ sub mangle_asm { $chkcat[$i] = 'misc'; $chksymb[$i] = ''; + } elsif ( $TargetPlatform =~ /^powerpc-apple-.*/ && /^\.picsymbol_stub/ ) + { + $chk[++$i] = $_; + $chkcat[$i] = 'dyld'; + $chksymb[$i] = ''; + } elsif ( $TargetPlatform =~ /^powerpc-apple-.*/ && /^\.symbol_stub/ ) + { + $chk[++$i] = $_; + $chkcat[$i] = 'dyld'; + $chksymb[$i] = ''; + } elsif ( $TargetPlatform =~ /^powerpc-apple-.*/ && /^\.lazy_symbol_pointer/ ) + { + $chk[++$i] = $_; + $chkcat[$i] = 'dyld'; + $chksymb[$i] = ''; + } elsif ( $TargetPlatform =~ /^powerpc-apple-.*/ && /^\.non_lazy_symbol_pointer/ ) + { + $chk[++$i] = $_; + $chkcat[$i] = 'dyld'; + $chksymb[$i] = ''; + } elsif ( $TargetPlatform =~ /^powerpc-apple-.*/ && /^\.data/ && $chkcat[$i] == 'dyld') + { # non_lazy_symbol_ptrs that point to local symbols + $chk[++$i] = $_; + $chkcat[$i] = 'dyld'; + $chksymb[$i] = ''; } else { # simple line (duplicated at the top) $chk[$i] .= $_; @@ -605,11 +659,9 @@ sub mangle_asm { } $numchks = $#chk + 1; - open CHUNKS, ">/tmp/chunks1" or die "Cannot open /tmp/chunks1: $!\n"; - for (my $i = 0; $i < @chk; ++$i) { print CHUNKS "======= $i =======\n", $chk[$i] } - close CHUNKS; - - # ######## + # open CHUNKS, ">/tmp/chunks1" or die "Cannot open /tmp/chunks1: $!\n"; + # for (my $i = 0; $i < @chk; ++$i) { print CHUNKS "======= $i =======\n", $chk[$i] } + # close CHUNKS; # the division into chunks is imperfect; # we throw some things over the fence into the next @@ -639,19 +691,43 @@ sub mangle_asm { # toss all prologue stuff; HPPA is pretty weird # (see elsewhere) - $c = &mash_hppa_prologue($c) if $TargetPlatform =~ /^hppa/; + $c = &hppa_mash_prologue($c) if $TargetPlatform =~ /^hppa-/; # be slightly paranoid to make sure there's # nothing surprising in there if ( $c =~ /--- BEGIN ---/ ) { if (($p, $r) = split(/--- BEGIN ---/, $c)) { + # remove junk whitespace around the split point + $p =~ s/\t+$//; + $r =~ s/^\s*\n//; + if ($TargetPlatform =~ /^i386-/) { $p =~ s/^\tpushl\s+\%edi\n//; $p =~ s/^\tpushl\s+\%esi\n//; $p =~ s/^\tpushl\s+\%ebx\n//; + $p =~ s/^\tmovl\s+\%esi,\s*\d*\(\%esp\)\n//; + $p =~ s/^\tmovl\s+\%edi,\s*\d*\(\%esp\)\n//; $p =~ s/^\tsubl\s+\$\d+,\s*\%esp\n//; $p =~ s/^\tmovl\s+\$\d+,\s*\%eax\n\tcall\s+__alloca\n// if ($TargetPlatform =~ /^.*-cygwin32/); + + # GCC 3.1 is in the habit of adding spurious writes to the + # stack in the prologue. Just to be on the safe side, + # chuck these over the fence into the main code. + while ($p =~ /^\tmovl\s+\$\d+,\s*\d*\(\%esp\)\n/) { + # print "Spurious instruction: $&"; + $p = $` . $'; + $r = $& . $r; + } + + } elsif ($TargetPlatform =~ /^ia64-/) { + $p =~ s/^\t\.prologue .*\n//; + $p =~ s/^\t\.save ar\.pfs, r\d+\n\talloc r\d+ = ar\.pfs, 0, 31, \d+, 0\n//; + $p =~ s/^\t\.fframe \d+\n\tadds r12 = -\d+, r12\n//; + $p =~ s/^\t\.save rp, r\d+\n\tmov r\d+ = b0\n//; + $p =~ s/^\t\.(mii|mmi)\n//; # bundling is no longer sensible + $p =~ s/^\t;;\n//g; # discard stops + $p =~ s/^\t\/\/.*\n//g; # gcc inserts timings in // comments } elsif ($TargetPlatform =~ /^m68k-/) { $p =~ s/^\tlink a6,#-?\d.*\n//; $p =~ s/^\tpea a6@\n\tmovel sp,a6\n//; @@ -676,33 +752,45 @@ sub mangle_asm { $p =~ s/^\tsw\t\$28,\d+\(\$sp\)\n//; $p =~ s/__FRAME__/$FRAME/; } elsif ($TargetPlatform =~ /^powerpc-apple-.*/) { - $p =~ s/^\tmflr r0\n//; + $pcrel_label = $p; + $pcrel_label =~ s/(.|\n)*^(L\d+\$pb):\n(.|\n)*/$2/ or $pcrel_label = ""; + + $p =~ s/^\tmflr r0\n//; $p =~ s/^\tbl saveFP # f\d+\n//; + $p =~ s/^\tbl saveFP ; save f\d+-f\d+\n//; + $p =~ s/^L\d+\$pb:\n//; $p =~ s/^\tstmw r\d+,-\d+\(r1\)\n//; $p =~ s/^\tstfd f\d+,-\d+\(r1\)\n//g; $p =~ s/^\tstw r0,\d+\(r1\)\n//g; $p =~ s/^\tstwu r1,-\d+\(r1\)\n//; $p =~ s/^\tstw r\d+,-\d+\(r1\)\n//g; + $p =~ s/^\tbcl 20,31,L\d+\$pb\n//; + $p =~ s/^L\d+\$pb:\n//; + $p =~ s/^\tmflr r31\n//; + + # This is bad: GCC 3 seems to zero-fill some local variables in the prologue + # under some circumstances, only when generating position dependent code. + # I have no idea why, and I don't think it is necessary, so let's toss it. + $p =~ s/^\tli r\d+,0\n//g; + $p =~ s/^\tstw r\d+,\d+\(r1\)\n//g; } else { print STDERR "$Pgm: unknown prologue mangling? $TargetPlatform\n"; } - - if ($TargetPlatform =~ /^powerpc-apple-.*/) { - # on PowerPC, we have to keep a part of the prologue - # (which loads the current instruction pointer into register r31) - $u_p = $p; # $u_p is for unexpected prologue - $u_p =~ s/^\tbcl 20,31,L\d+\$pb\n//; - $u_p =~ s/^L\d+\$pb:\n//; - $u_p =~ s/^\tmflr r31\n//; - die "Prologue junk?: $u_p\n" if $u_p =~ /^\t[^\.]/ - } else { - # HWL HACK: dont die, just print a warning - #print stderr "HWL: this should die! Prologue junk?: $p\n" if $p =~ /^\t[^\.]/; - die "Prologue junk?: $p\n" if $p =~ /^\t[^\.]/; + + # HWL HACK: dont die, just print a warning + #print stderr "HWL: this should die! Prologue junk?: $p\n" if $p =~ /^\t[^\.]/; + die "Prologue junk?: $p\n" if $p =~ /^\t[^\.]/; + + if ($TargetPlatform =~ /^powerpc-apple-.*/ && $pcrel_label ne "") { + # on PowerPC, we have to keep a part of the prologue + # (which loads the current instruction pointer into register r31) + $p .= "bcl 20,31,$pcrel_label\n"; + $p .= "$pcrel_label:\n"; + $p .= "\tmflr r31\n"; } + # glue together what's left $c = $p . $r; - $c =~ s/\n\t\n/\n/; # junk blank line } } @@ -722,6 +810,14 @@ sub mangle_asm { $e =~ s/^\tpopl\s+\%ecx\n//; $e =~ s/^\taddl\s+\$\d+,\s*\%esp\n//; $e =~ s/^\tsubl\s+\$-\d+,\s*\%esp\n//; + } elsif ($TargetPlatform =~ /^ia64-/) { + $e =~ s/^\tmov ar\.pfs = r\d+\n//; + $e =~ s/^\tmov b0 = r\d+\n//; + $e =~ s/^\t\.restore sp\n\tadds r12 = \d+, r12\n//; + $e =~ s/^\tbr\.ret\.sptk\.many b0\n//; + $e =~ s/^\t\.(mii|mmi|mib)\n//g; # bundling is no longer sensible + $e =~ s/^\t;;\n//g; # discard stops - stop at end of body is sufficient + $e =~ s/^\t\/\/.*\n//g; # gcc inserts timings in // comments } elsif ($TargetPlatform =~ /^m68k-/) { $e =~ s/^\tunlk a6\n//; $e =~ s/^\trts\n//; @@ -752,7 +848,7 @@ sub mangle_asm { # toss the register-windowing save/restore/ret* instructions # directly: if ( $TargetPlatform =~ /^sparc-/ ) { - $c =~ s/^\t(save.*|restore|ret|retl)\n//g; + $c =~ s/^\t(save.*|restore.*|ret|retl)\n//g; # throw away PROLOGUE comments $c =~ s/^\t!#PROLOGUE# 0\n\t!#PROLOGUE# 1\n//; } @@ -761,7 +857,12 @@ sub mangle_asm { # toss all calls to __DISCARD__ $c =~ s/^\t(call|jbsr|jal)\s+${T_US}__DISCARD__\n//go; -# ###WTT### $c =~ s/^\tbl\s+L___DISCARD__\$stub\n//go if $TargetPlatform =~ /^powerpc-apple-.*/; + $c =~ s/^\tjsr\s+\$26\s*,\s*${T_US}__DISCARD__\n//go if $TargetPlatform =~ /^alpha-/; + $c =~ s/^\tbl\s+L___DISCARD__\$stub\n//go if $TargetPlatform =~ /^powerpc-apple-.*/; + + # IA64: mangle tailcalls into jumps here + $c =~ s/^\tbr\.call\.sptk\.many b0 = (.*)\n\t;;\n(\tmov r1 = r\d+\n)?\t;;\n\t--- TAILCALL ---\n/\tbr\.few $1\n/g + if $TargetPlatform =~ /^ia64-/; # MIPS: that may leave some gratuitous asm macros around # (no harm done; but we get rid of them to be tidier) @@ -821,16 +922,18 @@ sub mangle_asm { if ( $TargetPlatform =~ /^alpha-/ && $c =~ /^\t\.ent\s+(\S+)/ ) { $ent = $1; # toss all prologue stuff, except for loading gp, and the ..ng address - if (($p, $r) = split(/^\t\.prologue/, $c)) { - if (($keep, $junk) = split(/\.\.ng:/, $p)) { - $keep =~ s/^\t\.frame.*\n/\t.frame \$30,0,\$26,0\n/; - $keep =~ s/^\t\.(mask|fmask).*\n//g; - $c = $keep . "..ng:\n"; - } else { - print STDERR "malformed code block ($ent)?\n" - } - } - $c .= "\t.prologue" . $r; + unless ($c =~ /\.ent.*\n\$.*\.\.ng:/) { + if (($p, $r) = split(/^\t\.prologue/, $c)) { + if (($keep, $junk) = split(/\.\.ng:/, $p)) { + $keep =~ s/^\t\.frame.*\n/\t.frame \$30,0,\$26,0\n/; + $keep =~ s/^\t\.(mask|fmask).*\n//g; + $c = $keep . "..ng:\n"; + } else { + print STDERR "malformed code block ($ent)?\n" + } + } + $c .= "\t.prologue" . $r; + } } $c =~ s/FUNNY#END#THING//; @@ -1011,17 +1114,46 @@ sub mangle_asm { # The next two only apply if we're not stealing %esi or %edi. $c =~ s/^\tmovl\s+\$${T_US}${symb}_fast\d*,\s*\%esi\n\tjmp\s+\*\%esi\n// if ($StolenX86Regs < 3); $c =~ s/^\tmovl\s+\$${T_US}${symb}_fast\d*,\s*\%edi\n\tjmp\s+\*\%edi\n// if ($StolenX86Regs < 4); + } elsif ( $TargetPlatform =~ /^ia64-/ ) { + #$c =~ s/^\tbr\.few ${symb}_fast\d*#\n\t;;\n(\t;;\n\t\.endp ${symb}_entry#\n)/$1/; + $c =~ s/^\tbr\.few ${symb}_fast\d*#\n(\t;;\n\t\.endp ${symb}_entry#\n)/$1/; } elsif ( $TargetPlatform =~ /^mips-/ ) { $c =~ s/^\tjmp \$31,\(\$27\),0\n\t\.align 4\n\t\.end/\t.align 4\n\t.end/; } elsif ( $TargetPlatform =~ /^m68k-/ ) { $c =~ s/^\tjmp ${T_US}${symb}_fast\d+.*\n\tnop\n//; $c =~ s/^\tjmp ${T_US}${symb}_fast\d+.*\n//; } elsif ( $TargetPlatform =~ /^powerpc-apple-.*/ ) { - $c =~ s/^\taddis r9,r31,ha16\(L_${symb}_fast\d*\$non_lazy_ptr-L\d+\$pb\)\n\tlwz r9,lo16\(L_${symb}_fast\d*\$non_lazy_ptr-L\d+\$pb\)\(r9\)\n\tmtctr r9\n\tbctr\n//; - # addis r9,r31,ha16(L_XXXX_fast3$non_lazy_ptr-L32$pb) - # lwz r9,lo16(L_XXXX_fast3$non_lazy_ptr-L32$pb)(r9) + if ( $c =~ s/^\taddis r9,r31,ha16\(L_${symb}_fast\d*\$non_lazy_ptr-L\d+\$pb\)\n\tlwz r9,lo16\(L_${symb}_fast\d*\$non_lazy_ptr-L\d+\$pb\)\(r9\)\n\tmtctr r9\n\tbctr$// ) { + # for Position-Independent Code, GCC 2: + # addis r9,r31,ha16(L_XXXX_fast3$non_lazy_ptr-Lxxx$pb) + # lwz r9,lo16(L_XXXX_fast3$non_lazy_ptr-Lxxx$pb)(r9) # mtctr r9 # bctr + + } elsif ( $c =~ s/^\taddis r9,r31,ha16\(L_${symb}_fast\d*\$non_lazy_ptr-L\d+\$pb\)\n\tlwz r29,lo16\(L_${symb}_fast\d*\$non_lazy_ptr-L\d+\$pb\)\(r9\)\nL(\d+):\n\tmtctr r29\n\tbctr$// ) { + # for Position-Independent Code, GCC 3: + # addis r9,r31,ha16(L_XXXX_fast3$non_lazy_ptr-Lxxx$pb) + # lwz r29,lo16(L_XXXX_fast3$non_lazy_ptr-Lxxx$pb)(r9) + # Lyyy: + # mtctr r29 + # bctr + $label = $1; + $c =~ s/^\tb L${label}\n/\tmtctr r29\n\tbctr\n/g; + } elsif ( $c =~ s/^\tlis r9,ha16\(L_${symb}_fast\d*\$non_lazy_ptr\)\n\tlwz r31,lo16\(L_${symb}_fast\d*\$non_lazy_ptr\)\(r9\)\nL(\d+):\n\tmtctr r31\n\tbctr$// ) { + # for -mdynamic-no-pic Code, GCC 3: + # lis r9,ha16(L_XXXX_fast3$non_lazy_ptr) + # lwz r31,lo16(L_XXXX_fast3$non_lazy_ptr-Lxxx$pb)(r9) + # Lyyy: + # mtctr r31 + # bctr + $label = $1; + $c =~ s/^\tb L${label}\n/\tmtctr r31\n\tbctr\n/g; + } else { + + print STDERR "slow-fast dropthrough not mangled\n"; + print STDERR $c; + print STDERR "\n\n"; + } } elsif ( $TargetPlatform =~ /^sparc-/ ) { $c =~ s/^\tcall\s+${T_US}${symb}_fast\d+,.*\n\t\s*nop\n//; $c =~ s/^\tcall\s+${T_US}${symb}_fast\d+,.*\n(\t\s*[a-z].*\n)/$1/; @@ -1116,6 +1248,12 @@ sub mangle_asm { $j++; } + } elsif ( $TargetPlatform =~ /^powerpc-apple-.*/ && $chkcat[$i] eq 'dyld' ) { + # powerpc-apple: dynamic linker stubs + if($chk[$i] !~ /\.indirect_symbol ___DISCARD__/) + { # print them out unchanged, but remove the stubs for __DISCARD__ + print OUTASM $chk[$i]; + } } else { &tidy_up_and_die(1,"$Pgm: unknown chkcat (ghc-asm: $TargetPlatform)\n$chkcat[$i]\n$chk[$i]\n"); } @@ -1130,7 +1268,7 @@ sub mangle_asm { \end{code} \begin{code} -sub mash_hppa_prologue { # OK, epilogue, too +sub hppa_mash_prologue { # OK, epilogue, too local($_) = @_; # toss all prologue stuff @@ -1203,7 +1341,7 @@ sub print_doctored { # jmp * # - s/^\tmovl\s+\$${T_US}(.*),(\%e[abcd]x)\n\tjmp\s+\*\2/\tjmp $T_US$1/g; + s/^\tmovl\s+\$${T_US}(.*),\s*(\%e[abcd]x)\n\tjmp\s+\*\2/\tjmp $T_US$1/g; if ($StolenX86Regs <= 2 ) { # YURGH! spurious uses of esi? s/^\tmovl\s+(.*),\s*\%esi\n\tjmp\s+\*%esi\n/\tmovl $1,\%eax\n\tjmp \*\%eax\n/g; @@ -1303,6 +1441,8 @@ right after the table itself. (The code pasting is done elsewhere.) sub rev_tbl { local($symb, $tbl, $discard1) = @_; + return ($tbl) if ($TargetPlatform =~ /^ia64-/); + local($before) = ''; local($label) = ''; local(@imports) = (); # hppa only