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[Qemu-commits] [qemu/qemu] 8f06bf: tcg/mips: fix MIPS32(R2) detection

From: GitHub
Subject: [Qemu-commits] [qemu/qemu] 8f06bf: tcg/mips: fix MIPS32(R2) detection
Date: Tue, 25 Sep 2012 16:00:12 -0700 
  Branch: refs/heads/master
  Home:   https://github.com/qemu/qemu
  Commit: 8f06bf693dec29642255adcc2828bc6b7daa83d9
      
https://github.com/qemu/qemu/commit/8f06bf693dec29642255adcc2828bc6b7daa83d9
  Author: Aurelien Jarno <address@hidden>
  Date:   2012-09-25 (Tue, 25 Sep 2012)

  Changed paths:
    M tcg/mips/tcg-target.c
    M tcg/mips/tcg-target.h

  Log Message:
  -----------
  tcg/mips: fix MIPS32(R2) detection

Fix the MIPS32(R2) cpu detection so that it also works with
-march=octeon. Thanks to Andrew Pinski for the hint.

Cc: Andrew Pinski <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>


  Commit: 5a696f6ac0641f200cdd2dfe7a6fd397d48ea7bd
      
https://github.com/qemu/qemu/commit/5a696f6ac0641f200cdd2dfe7a6fd397d48ea7bd
  Author: Richard Henderson <address@hidden>
  Date:   2012-09-25 (Tue, 25 Sep 2012)

  Changed paths:
    M tcg/README

  Log Message:
  -----------
  tcg: Adjust descriptions of *cond opcodes

The README file documented the operand ordering of the tcg_gen_*
functions.  Since we're documenting opcodes here, use the true
operand ordering.

Signed-off-by: Richard Henderson <address@hidden>
Cc: malc <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>


  Commit: 42ce3e2015b26df591e1d4c5aa1814fb8c45c36c
      
https://github.com/qemu/qemu/commit/42ce3e2015b26df591e1d4c5aa1814fb8c45c36c
  Author: Richard Henderson <address@hidden>
  Date:   2012-09-25 (Tue, 25 Sep 2012)

  Changed paths:
    M tcg/tcg-op.h

  Log Message:
  -----------
  tcg: Emit ANDI as EXTU for appropriate constants

Note that andi_i64 failed to perform even the minimal
optimizations promised by the README.

Signed-off-by: Richard Henderson <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>


  Commit: d81ada7fa43e588a24856da4bfcdcac020d8e25b
      
https://github.com/qemu/qemu/commit/d81ada7fa43e588a24856da4bfcdcac020d8e25b
  Author: Richard Henderson <address@hidden>
  Date:   2012-09-25 (Tue, 25 Sep 2012)

  Changed paths:
    M tcg/tcg-op.h

  Log Message:
  -----------
  tcg: Optimize initial inputs for ori_i64

Copy the same optimizations from ori_i32.

Signed-off-by: Richard Henderson <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>


  Commit: 6f3bb33eaa79570b7009f3704ca55c4f8296219f
      
https://github.com/qemu/qemu/commit/6f3bb33eaa79570b7009f3704ca55c4f8296219f
  Author: Richard Henderson <address@hidden>
  Date:   2012-09-25 (Tue, 25 Sep 2012)

  Changed paths:
    M tcg/tcg-op.h

  Log Message:
  -----------
  tcg: Emit XORI as NOT for appropriate constants

Note that xori_i64 failed to perform even the minimal
optimizations promised by the README.

Signed-off-by: Richard Henderson <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>


  Commit: 77276f6581b660a14bec069ec8d20f1280bddeb6
      
https://github.com/qemu/qemu/commit/77276f6581b660a14bec069ec8d20f1280bddeb6
  Author: Richard Henderson <address@hidden>
  Date:   2012-09-25 (Tue, 25 Sep 2012)

  Changed paths:
    M tcg/tcg-op.h

  Log Message:
  -----------
  tcg: Implement concat*_i64 with deposit_i64

For tcg_gen_concat_i32_i64 we only use deposit if the host supports it.
For tcg_gen_concat32_i64 even if the host does not, as we get identical
code before and after.

Note that this relies on the ANDI -> EXTU patch for the identity claim.

Signed-off-by: Richard Henderson <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>


  Commit: c552d6c038f7cf4058d1fd5987118ffd41e0e050
      
https://github.com/qemu/qemu/commit/c552d6c038f7cf4058d1fd5987118ffd41e0e050
  Author: Richard Henderson <address@hidden>
  Date:   2012-09-25 (Tue, 25 Sep 2012)

  Changed paths:
    M tcg/tcg.h

  Log Message:
  -----------
  tcg: Add tcg_debug_assert

Like the C assert macro, except only enabled for CONFIG_DEBUG_TCG,
and without having to set _NDEBUG and disable all other asserts at
the same time.

The use of __builtin_unreachable (when available) gives the compiler
the same information, which may (or may not) help it optimize better.

Signed-off-by: Richard Henderson <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>


  Commit: 717e70368bdc339d241f84aba00ed72d051e0236
      
https://github.com/qemu/qemu/commit/717e70368bdc339d241f84aba00ed72d051e0236
  Author: Richard Henderson <address@hidden>
  Date:   2012-09-25 (Tue, 25 Sep 2012)

  Changed paths:
    M tcg/tcg-op.h

  Log Message:
  -----------
  tcg: Sanity check deposit inputs

Given these are constants, checking once here means everything
after can assume they're correct.

Signed-off-by: Richard Henderson <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>


  Commit: 0a209d4bb119b92eb14b9afab55cef5bc0555554
      
https://github.com/qemu/qemu/commit/0a209d4bb119b92eb14b9afab55cef5bc0555554
  Author: Richard Henderson <address@hidden>
  Date:   2012-09-25 (Tue, 25 Sep 2012)

  Changed paths:
    M tcg/tcg-op.h
    M tcg/tcg.c
    M tcg/tcg.h

  Log Message:
  -----------
  tcg: Sanity check goto_tb input

Checking that we don't try for idx != [01] is trivial.  Checking
that we don't issue more than one of any index requires a tad
more data and some ifdefs protecting that new variable.

Signed-off-by: Richard Henderson <address@hidden>
Cc: Max Filippov <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>


  Commit: a463133ee26b9172728476962eb9d411985b480f
      
https://github.com/qemu/qemu/commit/a463133ee26b9172728476962eb9d411985b480f
  Author: Richard Henderson <address@hidden>
  Date:   2012-09-25 (Tue, 25 Sep 2012)

  Changed paths:
    M tcg/tcg-op.h

  Log Message:
  -----------
  tcg: Streamline movcond_i64 using 32-bit arithmetic

Avoiding 64-bit arithmetic (outside of the compare) reduces the
generated op count from 15 to 12, and the generated code size on
i686 from 105 to 88 bytes.

Signed-off-by: Richard Henderson <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>


  Commit: a80a6b63e362cc8eda7aae5b4c3f9e4e49013d62
      
https://github.com/qemu/qemu/commit/a80a6b63e362cc8eda7aae5b4c3f9e4e49013d62
  Author: Richard Henderson <address@hidden>
  Date:   2012-09-25 (Tue, 25 Sep 2012)

  Changed paths:
    M tcg/tcg-op.h

  Log Message:
  -----------
  tcg: Streamline movcond_i64 using movcond_i32

When movcond_i32 is available we can further reduce the generated
op count from 12 to 6, and the generated code size on i686 from
88 to 74 bytes.

Signed-off-by: Richard Henderson <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>


  Commit: f813cb838f19ee8637d3c365659e6a6bb0c9c974
      
https://github.com/qemu/qemu/commit/f813cb838f19ee8637d3c365659e6a6bb0c9c974
  Author: Aurelien Jarno <address@hidden>
  Date:   2012-09-25 (Tue, 25 Sep 2012)

  Changed paths:
    M tcg/i386/tcg-target.c

  Log Message:
  -----------
  tcg/i386: fix build with -march < i686

The movcond_i32 op has to be protected with TCG_TARGET_HAS_movcond_i32
to fix the build with -march < i686.

Thanks to Richard Henderson for the hint.

Reported-by: Alex Barcelo <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>


Compare: https://github.com/qemu/qemu/compare/d3e8f9575311...f813cb838f19
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