Commit Graph

62 Commits

Author SHA1 Message Date
Richard Henderson 2bece2c883 tcg: Optionally sign-extend 32-bit arguments for 64-bit hosts.
Some hosts (amd64, ia64) have an ABI that ignores the high bits
of the 64-bit register when passing 32-bit arguments.  Others
require the value to be properly sign-extended for the type.
I.e. "int32_t" must be sign-extended and "uint32_t" must be
zero-extended to 64-bits.

To effect this, extend the "sizemask" parameter to tcg_gen_callN
to include the signedness of the type of each parameter.  If the
tcg target requires it, extend each 32-bit argument into a 64-bit
temp and pass that to the function call.

This ABI feature is required by sparc64, ppc64 and s390x.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-06-16 11:29:11 +02:00
Richard Henderson e4d58b41f9 tcg: Make some tcg-target.c routines static.
Both tcg_target_init and tcg_target_qemu_prologue
are unused outside of tcg.c.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-06-09 11:18:26 +02:00
Richard Henderson 3b6dac3416 tcg: Add TYPE parameter to tcg_out_mov.
Mirror tcg_out_movi in having a TYPE parameter.  This allows x86_64
to perform the move at the proper width, which may elide a REX prefix.

Introduce a TCG_TYPE_REG enumerator to represent the "native width"
of the host register, and to distinguish the usage from "pointer data"
as represented by the existing TCG_TYPE_PTR.

Update all targets to match.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-06-09 11:18:25 +02:00
Paul Brook 355b194369 Split TLB addend and target_phys_addr_t
Historically the qemu tlb "addend" field was used for both RAM and IO accesses,
so needed to be able to hold both host addresses (unsigned long) and guest
physical addresses (target_phys_addr_t).  However since the introduction of
the iotlb field it has only been used for RAM accesses.

This means we can change the type of addend to unsigned long, and remove
associated hacks in the big-endian TCG backends.

We can also remove the host dependence from target_phys_addr_t.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-04-05 00:28:53 +01:00
Richard Henderson 86feb1c860 tcg: Disambiguate qemu_ld32u with 32-bit and 64-bit outputs.
Some targets (e.g. Alpha and MIPS64) need to keep 32-bit operands
sign-extended in 64-bit registers (regardless of the "real" sign
of the operand).  For that, we need to be able to distinguish
between a 32-bit load with a 32-bit result and a 32-bit load with
a given extension to a 64-bit result.  This distinction already
exists for the ld* loads, but not the qemu_ld* loads.

Reserve qemu_ld32u for 64-bit outputs and introduce qemu_ld32 for
32-bit outputs.  Adjust all code generators to match.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-26 23:01:03 +01:00
Richard Henderson 32d98fbd10 tcg: Allow target-specific implementation of NOR.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-26 21:52:44 +01:00
Richard Henderson 9940a96bc8 tcg: Allow target-specific implementation of NAND.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-26 21:44:40 +01:00
Richard Henderson 8d625cf1d1 tcg: Allow target-specific implementation of EQV.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-26 21:42:46 +01:00
Richard Henderson 8a56e84091 tcg: Use TCGCond where appropriate.
Use the TCGCond enumeration type in the brcond and setcond
related prototypes in tcg-op.h and each code generator.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-26 21:29:08 +01:00
Richard Henderson a975160954 tcg: Name the opcode enumeration.
Give the enumeration formed from tcg-opc.h a name: TCGOpcode.
Use that enumeration type instead of "int" whereever appropriate.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-26 21:28:24 +01:00
Paolo Bonzini a63b5829af remove remaining occurrences AREG[1-9] and TCG_AREG[1-9]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-26 20:48:30 +01:00
Blue Swirl 65850a0254 Fix Sparc host build breakage
Fix error:
  CC    sparc-bsd-user/op_helper.o
In file included from /src/qemu/tcg/tcg.c:158:
/src/qemu/tcg/sparc/tcg-target.c:728:5: "TARGET_PHYS_ADDR_BITS" is not defined

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-13 09:52:19 +00:00
Jay Foad 30c0c76ce0 tcg: fix build on 32-bit hppa, ppc and sparc hosts
The qemu_ld32s op is only defined if TCG_TARGET_REG_BITS == 64.

Signed-off-by: Jay Foad <jay.foad@gmail.com>
Signed-off-by: malc <av1474@comtv.ru>
2010-02-22 19:38:52 +03:00
Richard Henderson 3682825669 tcg: Add comments for all optional instructions not implemented.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-02-20 08:35:12 +00:00
Richard Henderson 18c8f7a35d tcg-sparc: Implement ORC.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-02-20 08:34:42 +00:00
Richard Henderson dc69960dd6 tcg-sparc: Implement ANDC.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-02-20 08:34:18 +00:00
Richard Henderson be6551b1e7 tcg-sparc: Implement not.
The fallback implementation of "ret = arg1 ^ -1" isn't ideal
because of the extra tcg op to load the minus one.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-02-20 08:32:35 +00:00
Richard Henderson 4b5a85c175 tcg-sparc: Implement neg.
The fallback implementation of "ret = 0 - arg1" isn't ideal,
first because of the extra tcg op to load the zero, and second
because we fail to handle zero as %g0 for arg1 of the sub.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-02-20 08:31:50 +00:00
Richard Henderson dbfe80e1ea tcg-sparc: Implement setcond, setcond2.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-02-16 17:53:34 +00:00
Richard Henderson cc6dfecf02 tcg-sparc: Implement ext32[su]_i64
The 32-bit right-shift instructions is defined to extend the shifted
output to 64-bits.  A shift count of zero therefore is a simple
extension without actually shifting.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-01-12 19:59:34 +00:00
Richard Henderson 583d121520 tcg-sparc: Implement division properly.
The {div,divu}2 opcodes are intended for systems for which the
division instruction produces both quotient and remainder.  Sparc
is not such a system.  Indeed, the remainder must be computed as

  quot = a / b
  rem = a - (quot * b)

Split out a tcg_out_div32 function that properly initializes Y
with the extension of the input to 64-bits.  Discard the code
that used the 64-bit DIVX on sparc9/sparcv8plus without extending
the inputs to 64-bits.  Implement remainders in terms of division
followed by multiplication.

Signed-off-by: Richard Henderson <rth@twiddle.net>
[blauwirbel@gmail.com: applied rth's typo fix in tcg_out_div32]
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-01-12 19:59:33 +00:00
Richard Henderson 5e143c43a6 tcg-sparc: Do not remove %o[012] from 'r' constraint.
Only 'L' constraint needs that.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-01-12 19:59:32 +00:00
Richard Henderson 7a3766f390 tcg-sparc: Implement add2, sub2, mulu2.
Add missing 32-bit double-word support opcodes.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-01-12 19:59:31 +00:00
Richard Henderson ba225198d0 tcg-sparc: Add tcg_out_arithc.
Add a function to handle the register-vs-immediate test for arithmetic.

Also, adjust the OP_32_64 macro so that it auto-indents properly.
Rename the gen_arith32 label to gen_arith, since it handles 64-bit
arithmetic as well.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-01-12 19:59:29 +00:00
Richard Henderson 56f4927e34 tcg-sparc: Implement brcond2.
Split out tcg_out_cmp and properly handle immediate arguments.
Fix constraints on brcond to match what SUBCC accepts.
Add tcg_out_brcond2_i32 for 32-bit host.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-12-21 20:52:36 +00:00
Richard Henderson a212ea7553 tcg-sparc: Use TCG_TARGET_REG_BITS in conditional compilation.
The test TCG_TARGET_REG_BITS==64 is exactly the feature that we
are checking for, whereas something involving __sparc_v9__ or
__sparc_v8plus__ should be reserved for something ISA related,
as with SMULX.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-12-21 20:52:34 +00:00
Richard Henderson 431722077a tcg-sparc: Improve tcg_out_movi for sparc64.
Generate sign-extended 32-bit constants with SETHI+XOR.
Otherwise tidy the routine to avoid the need for
conditional compilation and code duplication with movi_imm32.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-12-21 20:52:06 +00:00
Richard Henderson 4a09aa895e tcg-sparc: Fix imm13 check in movi.
We were unnecessarily restricting imm13 constants to 12 bits.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-12-21 20:49:34 +00:00
Juan Quintela dfe5fff3ea change HOST_SOLARIS to CONFIG_SOLARIS{_VERSION}
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27 14:09:16 -05:00
blueswir1 1da92db280 Fix branches and TLB matches for 64 bit targets
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6974 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-04 19:10:26 +00:00
blueswir1 f843e5282a Allocate space for static call args, increase stack frame size on Sparc64
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6973 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-04 15:33:03 +00:00
aurel32 66896cb803 tcg: rename bswap_i32/i64 functions
Rename bswap_i32 into bswap32_i32 and bswap_i64 into bswap64_i64

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6829 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-13 09:34:48 +00:00
blueswir1 e63d7abdde Prune unused TCG_AREGs
Remove definitions for TCG_AREGs corresponding to AREG definitions
removed in r6778.

Signed-off-by: Stuart Brady <stuart.brady@gmail.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6779 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-08 14:45:45 +00:00
blueswir1 d4a9eb1fc6 Add some missing static and const qualifiers, reg_names only used if NDEBUG set
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5421 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-05 09:59:14 +00:00
blueswir1 9d0efc88e4 Use 64 bit loads for tlb addend only if addend size is 64 bits
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5203 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-13 20:07:53 +00:00
blueswir1 baf8cc5275 Fix stack alignment on Sparc32 host
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5202 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-13 20:05:32 +00:00
blueswir1 79383c9c08 Fix some warnings that would be generated by gcc -Wredundant-decls
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5115 c046a42c-6fe2-441c-8c8c-71466251a162
2008-08-30 09:51:20 +00:00
blueswir1 6f41b7772d Fix 64 bit constant generation
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5020 c046a42c-6fe2-441c-8c8c-71466251a162
2008-08-17 20:14:16 +00:00
blueswir1 90cbed4656 Fix 32 bit address overflow
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5019 c046a42c-6fe2-441c-8c8c-71466251a162
2008-08-17 16:13:02 +00:00
blueswir1 bffe143153 Restore AREG0 after calls
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5018 c046a42c-6fe2-441c-8c8c-71466251a162
2008-08-17 14:34:27 +00:00
blueswir1 56fc64dfd0 Sparc code generator update (fix qemu_ld & qemu_st)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5014 c046a42c-6fe2-441c-8c8c-71466251a162
2008-08-16 19:54:01 +00:00
blueswir1 53c3748794 Sparc code generator update
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5009 c046a42c-6fe2-441c-8c8c-71466251a162
2008-08-15 18:14:44 +00:00
blueswir1 e97b640d47 Try to avoid glibc global register mangling, again
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4953 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-26 17:19:35 +00:00
blueswir1 d795eb86d7 Fix 64 bit constant generation
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4854 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-07 19:34:45 +00:00
blueswir1 8384dd67fe Implement byte swapping accesses
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4574 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-25 11:19:24 +00:00
blueswir1 b101234a8e Implement 64-bit constant loads
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4561 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-24 18:09:50 +00:00
blueswir1 26cc915cff Use sethi and arith functions, fix comment
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4560 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-24 18:06:35 +00:00
blueswir1 77fcd0934a Fix stack offsets and alignment
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4559 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-24 16:41:17 +00:00
blueswir1 64e3257c03 Define stack offsets
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4554 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-24 05:36:16 +00:00
blueswir1 57e49b4074 Fix constant checks on Sparc64 host
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4486 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-18 08:11:14 +00:00