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LICENSE 146 Bytes
README 12.4 kB
TODO 403 Bytes
tcg-op.h 63.6 kB
tcg-opc.h 8.3 kB
tcg-runtime.h 473 Bytes
tcg.c 61.7 kB
tcg.h 14 kB

Latest revisions

# Date Author Comment
09aac126 01/15/2010 08:32 am Richard Henderson

tcg/x86_64: Avoid unnecessary REX.B prefixes.

The existing P_REXB internal opcode flag unconditionally emits
the REX prefix. Technically it's not needed if the register in
question is %al, %bl, %cl, %dl.

Eliding the prefix requires splitting the P_REXB flag into two,...
57169903 01/14/2010 07:16 pm Richard Henderson

tcg/x86_64: Special-case all 32-bit AND operands.

This avoids an unnecessary REX.W prefix when dealing with AND
operands that fit into a 32-bit quantity. The most common change
actually seen is movz[wb]q -> movz[wb]l.

Similarly, avoid REXW in ext{8,16}u_i64 tcg opcodes....
cc6dfecf 01/12/2010 09:59 pm Richard Henderson

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 <>...
583d1215 01/12/2010 09:59 pm Richard Henderson

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)...
5e143c43 01/12/2010 09:59 pm Richard Henderson

tcg-sparc: Do not remove %o012 from 'r' constraint.

Only 'L' constraint needs that.

Signed-off-by: Richard Henderson <>
Signed-off-by: Blue Swirl <>
7a3766f3 01/12/2010 09:59 pm Richard Henderson

tcg-sparc: Implement add2, sub2, mulu2.

Add missing 32-bit double-word support opcodes.

Signed-off-by: Richard Henderson <>
Signed-off-by: Blue Swirl <>
ba225198 01/12/2010 09:59 pm Richard Henderson

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....
ff44c2f3 12/27/2009 11:09 am Richard Henderson

tcg: Add tcg_unsigned_cond.

Returns an unsigned version of a signed condition;
returns the original condition otherwise.

Signed-off-by: Richard Henderson <>
Signed-off-by: Blue Swirl <>
56f4927e 12/21/2009 10:52 pm Richard Henderson

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 <>
Signed-off-by: Blue Swirl <>
a212ea75 12/21/2009 10:52 pm Richard Henderson

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....

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