lp://staging/~ams-codesourcery/gcc-linaro/lp641397

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On hold for merging into lp://staging/gcc-linaro/4.6

Linaro Toolchain Developers: Pending requested 2011-01-11

Diff: 80 lines (+30/-6)

3 files modified

ChangeLog.linaro (+8/-0)
gcc/cse.c (+21/-5)
gcc/passes.c (+1/-1)

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Bug #641397: bitfields poorly optimized

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105757. By Andrew Stubbs on 2011-01-11

Fix a missed optimization in bitfield initialization.

LP:641397

105756. By ebotcazou on 2010-12-30

 PR target/47038
 * config/sparc/sparc.c (sparc_file_end): Call resolve_unique_section
 on the GOT helper if USE_HIDDEN_LINKONCE.

105755. By nicola on 2010-12-30

In gcc/objc/:
2010-12-30 Nicola Pero <email address hidden>

 * objc-act.c (objc_add_method): When emitting an error because a
 method with the same name but conflicting types is found in the
 same class or category interface, print a note with the location
 of the original method. Also, improved the error message to
 clearly state that the conflict is due to conflicting types, and
 produce it for protocols as well. Emit an error if two identical
 methods are declared in a protocol, but one is @required and the
 other one is @optional. When

In gcc/testsuite/:
2010-12-30 Nicola Pero <email address hidden>

 * objc.dg/class-extension-3.m: Updated.
 * objc.dg/method-1.m: Updated.
 * objc.dg/method-conflict-1.m: New.
 * objc.dg/method-conflict-2.m: New.
 * obj-c++.dg/class-extension-3.mm: Updated.
 * obj-c++.dg/method-8.mm: Updated.
 * obj-c++.dg/method-conflict-1.mm: New.
 * obj-c++.dg/method-conflict-2.mm: New.

105754. By amylaar on 2010-12-30

 PR target/47097
 * config/i386/lynx.h (DBX_REGISTER_NUMBER): Add cast to avoid
 mixing signed and unsigned types in conditional expression.

105753. By jsm28 on 2010-12-30

 PR c/46889
 * c-decl.c (detect_field_duplicates): Ensure hash is used for
 finding duplicates when first field is anonymous.

testsuite:
 * gcc.dg/anon-struct-15.c: New test.

105752. By froydnj on 2010-12-30

gcc/
        PR target/44606
        * reload1.c (choose_reload_regs): Don't look for equivalences for
        output reloads of constant loads.

gcc/testsuite/
        PR target/44606
        * gcc.dg/pr44606.c: New test.

105751. By amylaar on 2010-12-30

 PR target/47101
 * vmsdbgout.c (vmsdbgout_init): Rename main_input_filename to filename.
 (vmsdbgout_finish): Likewise.

105750. By amylaar on 2010-12-30

 PR target/47063
 * config/alpha/vms.h (MALLOC_ALIGNMENT): Don't undef / define.
 (MALLOC_ABI_ALIGNMENT): Undef / define.

105749. By uweigand on 2010-12-30

 * emit-rtl.c (set_mem_attributes_minus_bitpos): Explicitly derive
 default values from MEM mode if no memory attributes are present.
 Do not use mode alignment, even on STRICT_ALIGNMENT targets, when
 called with an expression (not a type).

105748. By hjl on 2010-12-30

Short circuit if upper 128bits are unchanged in the block.

2010-12-30 H.J. Lu <email address hidden>

 * config/i386/i386.c (upper_128bits_state): Remove comments.
 (block_info_def): Add unchanged.
 (move_or_delete_vzeroupper_2): Short circuit if upper 128bits
 are unchanged in the block.