[Bug c/41288] New: gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[Bug c/41288] New: gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[howarth at nitro dot med dot uc dot edu]

On both x86_64-apple-darwin* and i686-apple-darwin* using -m64, the
gcc.target/x86_64/abi/test_struct_returning.c test cases...

FAIL: gcc.target/x86_64/abi/test_struct_returning.c execution,  -O3
-fomit-frame-pointer 
FAIL: gcc.target/x86_64/abi/test_struct_returning.c execution,  -O3
-fomit-frame-pointer -funroll-loops 
FAIL: gcc.target/x86_64/abi/test_struct_returning.c execution,  -O3
-fomit-frame-pointer -funroll-all-loops -finline-functions 
FAIL: gcc.target/x86_64/abi/test_struct_returning.c execution,  -O3 -g 

started to fail somewhere between 20090425 and 20090516. The failed tests
generate the following warnings...

Executing on host: gcc
/sw/src/fink.build/gcc45-4.4.999-20090516/gcc-4.5-20090516/gcc/testsuite/gcc.target/x86_64/abi/test_struct_returning.c
/sw/src/fink.build/gcc45-4.4.999-20090516/gcc-4.5-20090516/gcc/testsuite/gcc.target/x86_64/abi/asm-support-darwin.s
 -w  -O0  -W -Wall -Wno-abi  -lm   -o
/sw/src/fink.build/gcc45-4.4.999-20090516/darwin_objdir/gcc/testsuite/gcc/test_struct_returning.x0
   (timeout = 300)
cc1: warning: command line option "-Wno-abi" is valid for C++/ObjC++ but not
for C
output is:
cc1: warning: command line option "-Wno-abi" is valid for C++/ObjC++ but not
for C

FAIL: gcc.target/x86_64/abi/test_struct_returning.c compilation,  -O0 

These warnings don't appear in the gcc.log of 20090425.


-- 
           Summary: gcc.target/x86_64/abi/test_struct_returning.c
                    regressions on *-apple-darwin* at -m64
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: howarth at nitro dot med dot uc dot edu
 GCC build triplet: x86_64-apple-darwin10
  GCC host triplet: x86_64-apple-darwin10
GCC target triplet: x86_64-apple-darwin10


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug c/41288] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[howarth at nitro dot med dot uc dot edu]

------- Comment #1 from howarth at nitro dot med dot uc dot edu  2009-09-07 01:24 -------
The output from 20090425 shows...

Executing on host:
/sw/src/fink.build/gcc45-4.4.999-20090425/darwin_objdir/gcc/xgcc
-B/sw/src/fink.build/gcc45-4.4.999-20090425/darwin_objdir/gcc/
/sw/src/fink.build/gcc45-4.4.999-20090425/gcc-4.5-20090425/gcc/testsuite/gcc.target/x86_64/abi/test_struct_returning.c
/sw/src/fink.build/gcc45-4.4.999-20090425/gcc-4.5-20090425/gcc/testsuite/gcc.target/x86_64/abi/asm-support-darwin.s
 -w  -O0  -W -Wall -Wno-abi  -lm   -o
/sw/src/fink.build/gcc45-4.4.999-20090425/darwin_objdir/gcc/testsuite/gcc/test_struct_returning.x0
   (timeout = 300)
PASS: gcc.target/x86_64/abi/test_struct_returning.c compilation,  -O0 
Setting LD_LIBRARY_PATH to
:/sw/src/fink.build/gcc45-4.4.999-20090425/darwin_objdir/gcc::/sw/src/fink.build/gcc45-4.4.999-20090425/darwin_objdir/gcc
PASS: gcc.target/x86_64/abi/test_struct_returning.c execution,  -O0 

Notice the compiler in the failing case now is only 'gcc' rather than
'/sw/src/fink.build/gcc45-4.4.999-20090425/darwin_objdir/gcc/xgcc'. This is
probably broken on all platforms but only darwin is revealing the fact that the
test is being done with the system compiler and not the newly built compiler.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug c/41288] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[howarth at nitro dot med dot uc dot edu]

------- Comment #2 from howarth at nitro dot med dot uc dot edu  2009-09-07 01:33 -------
Ignore the comments on the warnings. This was a glitch from running...

make -k check-gcc
RUNTESTFLAGS="abi-x86_64.exp=gcc.target/x86_64/abi/test_struct_returning.c"

in darwin_objdir which seems to cause the compiler to be incorrectly set. The
bug is in execution.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug target/41288] [4.5 Regression] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|c                           |target
           Keywords|                            |ABI, wrong-code
            Summary|gcc.target/x86_64/abi/test_s|[4.5 Regression]
                   |truct_returning.c           |gcc.target/x86_64/abi/test_s
                   |regressions on *-apple-     |truct_returning.c
                   |darwin* at -m64             |regressions on *-apple-
                   |                            |darwin* at -m64
   Target Milestone|---                         |4.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug target/41288] [4.5 Regression] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[howarth at nitro dot med dot uc dot edu]

------- Comment #3 from howarth at nitro dot med dot uc dot edu  2009-09-08 02:59 -------
A regression hunt shows that r147824 passes all of
gcc.target/x86_64/abi/test_struct_returning.c's execution tests but r147829
fails...

FAIL: gcc.target/x86_64/abi/test_struct_returning.c execution,  -O3
-fomit-frame-pointer 
FAIL: gcc.target/x86_64/abi/test_struct_returning.c execution,  -O3
-fomit-frame-pointer -funroll-loops 
FAIL: gcc.target/x86_64/abi/test_struct_returning.c execution,  -O3
-fomit-frame-pointer -funroll-all-loops -finline-functions 
FAIL: gcc.target/x86_64/abi/test_struct_returning.c execution,  -O3 -g 

which suggests that r147829 is the cause.

Author: irar
Date: Sun May 24 08:44:56 2009
New Revision: 147829

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=147829
Log:

        * doc/passes.texi (Tree-SSA passes): Document SLP pass.
        * tree-pass.h (pass_slp_vectorize): New pass.
        * params.h (SLP_MAX_INSNS_IN_BB): Define.
        * timevar.def (TV_TREE_SLP_VECTORIZATION): Define.
        * tree-vectorizer.c (timevar.h): Include.
        (user_vect_verbosity_level): Declare.
        (vect_location): Fix comment.
        (vect_set_verbosity_level): Update user_vect_verbosity_level
        instead of vect_verbosity_level.
        (vect_set_dump_settings): Add an argument. Ignore user defined
        verbosity if dump flags require higher level of verbosity. Print to
        stderr only for loop vectorization.
        (vectorize_loops): Update call to vect_set_dump_settings.
        (execute_vect_slp): New function.
        (gate_vect_slp): Likewise.
        (struct gimple_opt_pass pass_slp_vectorize): New.
        * tree-vectorizer.h (struct _bb_vec_info): Define along macros to
        access its members.
        (vec_info_for_bb): New function.
        (struct _stmt_vec_info): Add bb_vinfo and a macro for its access.
        (VECTORIZATION_ENABLED): New macro.
        (SLP_ENABLED, SLP_DISABLED): Likewise.
        (vect_is_simple_use): Add bb_vec_info argument.
        (new_stmt_vec_info, vect_analyze_data_ref_dependences,
        vect_analyze_data_refs_alignment, vect_verify_datarefs_alignment,
        vect_analyze_data_ref_accesses, vect_analyze_data_refs,
        vect_schedule_slp, vect_analyze_slp): Likewise.
        (vect_analyze_stmt): Add slp_tree argument.
        (find_bb_location): Declare.
        (vect_slp_analyze_bb, vect_slp_transform_bb): Likewise.
        * tree-vect-loop.c (new_loop_vec_info): Adjust function calls.
        (vect_analyze_loop_operations, vect_analyze_loop,
        get_initial_def_for_induction, vect_create_epilog_for_reduction,
        vect_finalize_reduction, vectorizable_reduction,
        vectorizable_live_operation, vect_transform_loop): Likewise.
        * tree-data-ref.c (dr_analyze_innermost): Update comment,
        skip evolution analysis if analyzing a basic block.
        (dr_analyze_indices): Likewise.
        (initialize_data_dependence_relation): Skip the test whether the
        object is invariant for basic blocks.
        (compute_all_dependences): Skip dependence analysis for data
        references in basic blocks.
        (find_data_references_in_stmt): Don't fail in case of invariant
        access in basic block.
        (find_data_references_in_bb): New function.
        (find_data_references_in_loop): Move code to
        find_data_references_in_bb    and add a call to it.
        (compute_data_dependences_for_bb): New function.
        * tree-data-ref.h (compute_data_dependences_for_bb): Declare.
        * tree-vect-data-refs.c (vect_check_interleaving): Adjust to the case
        that STEP is 0.
        (vect_analyze_data_ref_dependence): Check for interleaving in case of
        unknown dependence in basic block and fail in case of dependence in
        basic block.
        (vect_analyze_data_ref_dependences): Add bb_vinfo argument, get data
        dependence instances from either loop or basic block vectorization
        info.
        (vect_compute_data_ref_alignment): Check if it is loop vectorization
        before calling nested_in_vect_loop_p.
        (vect_compute_data_refs_alignment): Add bb_vinfo argument, get data
        dependence instances from either loop or basic block vectorization
        info.
        (vect_verify_datarefs_alignment): Likewise.
        (vect_enhance_data_refs_alignment): Adjust function calls.
        (vect_analyze_data_refs_alignment): Likewise.
        (vect_analyze_group_access): Fix printing. Skip different checks if
        DR_STEP is 0. Keep strided stores either in loop or basic block
        vectorization data structure. Fix indentation.
        (vect_analyze_data_ref_access): Fix comments, allow zero step in
        basic blocks.
        (vect_analyze_data_ref_accesses): Add bb_vinfo argument, get data
        dependence instances from either loop or basic block vectorization
        info.
        (vect_analyze_data_refs): Update comment. Call
        compute_data_dependences_for_bb to analyze basic blocks.
        (vect_create_addr_base_for_vector_ref): Check for outer loop only in
        case of loop vectorization. In case of basic block vectorization use
        data-ref itself   as  a base.
        (vect_create_data_ref_ptr): In case of basic block vectorization:
        don't advance the pointer, add new statements before the current
        statement.  Adjust function calls.
        (vect_supportable_dr_alignment): Support only aligned accesses in
        basic block vectorization.
        * common.opt (ftree-slp-vectorize): New flag.
        * tree-vect-patterns.c (widened_name_p): Adjust function calls.
        (vect_pattern_recog_1): Likewise.
        * tree-vect-stmts.c (process_use): Likewise.
        (vect_init_vector): Add new statements in the beginning of the basic
        block in case of basic block SLP.
        (vect_get_vec_def_for_operand): Adjust function calls.
        (vect_finish_stmt_generation): Likewise.
        (vectorizable_call): Add assert that it is loop vectorization, adjust
        function calls.
        (vectorizable_conversion, vectorizable_assignment): Likewise.
        (vectorizable_operation): In case of basic block SLP, take
        vectorization factor from statement's type and skip the relevance
        check. Adjust function calls.
        (vectorizable_type_demotion): Add assert that it is loop
        vectorization, adjust function calls.
        (vectorizable_type_promotion): Likewise.
        (vectorizable_store): Check for outer loop only in case of loop
        vectorization. Adjust function calls. For basic blocks, skip the
        relevance check and don't advance pointers.
        (vectorizable_load): Likewise.
        (vectorizable_condition): Add assert that it is loop vectorization,
        adjust function calls.
        (vect_analyze_stmt): Add argument. In case of basic block SLP, check
        that it is not reduction, get vector type, call only supported
        functions, skip loop    specific parts.
        (vect_transform_stmt): Check for outer loop only in case of loop
        vectorization.
        (new_stmt_vec_info): Add new argument and initialize bb_vinfo.
        (vect_is_simple_use): Fix comment, add new argument, fix conditions
        for external definition.
        * passes.c (pass_slp_vectorize): New pass.
        * tree-vect-slp.c (find_bb_location): New function.
        (vect_get_and_check_slp_defs): Add argument, adjust function calls,
        check for patterns only in loops.
        (vect_build_slp_tree): Add argument, adjust function calls, fail in
        case of multiple types in basic block SLP.
        (vect_mark_slp_stmts_relevant): New function.
        (vect_supported_load_permutation_p): Fix comment.
        (vect_analyze_slp_instance): Add argument. In case of basic block
        SLP, take vectorization factor from statement's type, check that
        unrolling factor is 1. Adjust function call. Save SLP instance in
        either loop or basic block vectorization structure. Return FALSE,
        if SLP failed.
        (vect_analyze_slp): Add argument. Get strided stores groups from
        either loop or basic block vectorization structure. Return FALSE
        if basic block SLP failed.
        (new_bb_vec_info): New function.
        (destroy_bb_vec_info, vect_slp_analyze_node_operations,
        vect_slp_analyze_operations, vect_slp_analyze_bb): Likewise.
        (vect_schedule_slp): Add argument. Get SLP instances from either
        loop or basic block vectorization structure. Set vectorization factor
        to be 1 for basic block SLP.
        (vect_slp_transform_bb): New function.
        * params.def (PARAM_SLP_MAX_INSNS_IN_BB): Define.


-- 

howarth at nitro dot med dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |irar at il dot ibm dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug target/41288] [4.5 Regression] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[howarth at nitro dot med dot uc dot edu]

------- Comment #4 from howarth at nitro dot med dot uc dot edu  2009-09-08 03:04 -------
Created an attachment (id=18534)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18534&action=view)
preprocessed source for gcc.target/x86_64/abi/test_struct_returning.c
compilation,  -O3 -fomit-frame-pointer

/sw/src/fink.build/gcc45-4.4.999-20090524/darwin_objdir/gcc/xgcc
-B/sw/src/fink.build/gcc45-4.4.999-20090524/darwin_objdir/gcc/
/sw/src/fink.build/gcc45-4.4.999-20090524/gcc-4.5-20090524/gcc/testsuite/gcc.target/x86_64/abi/test_struct_returning.c
/sw/src/fink.build/gcc45-4.4.999-20090524/gcc-4.5-20090524/gcc/testsuite/gcc.target/x86_64/abi/asm-support-darwin.s
 -w  -O3 -fomit-frame-pointer --save-temps  -W -Wall -Wno-abi  -lm   -o
/sw/src/fink.build/gcc45-4.4.999-20090524/darwin_objdir/gcc/testsuite/gcc/test_struct_returning.x3


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug target/41288] [4.5 Regression] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[howarth at nitro dot med dot uc dot edu]

------- Comment #5 from howarth at nitro dot med dot uc dot edu  2009-09-08 03:05 -------
Created an attachment (id=18535)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18535&action=view)
assembly file from gcc.target/x86_64/abi/test_struct_returning.c compilation, 
-O3 -fomit-frame-pointer under r147829

/sw/src/fink.build/gcc45-4.4.999-20090524/darwin_objdir/gcc/xgcc
-B/sw/src/fink.build/gcc45-4.4.999-20090524/darwin_objdir/gcc/
/sw/src/fink.build/gcc45-4.4.999-20090524/gcc-4.5-20090524/gcc/testsuite/gcc.target/x86_64/abi/test_struct_returning.c
/sw/src/fink.build/gcc45-4.4.999-20090524/gcc-4.5-20090524/gcc/testsuite/gcc.target/x86_64/abi/asm-support-darwin.s
 -w  -O3 -fomit-frame-pointer --save-temps  -W -Wall -Wno-abi  -lm   -o
/sw/src/fink.build/gcc45-4.4.999-20090524/darwin_objdir/gcc/testsuite/gcc/test_struct_returning.x3


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug target/41288] [4.5 Regression] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[howarth at nitro dot med dot uc dot edu]

------- Comment #6 from howarth at nitro dot med dot uc dot edu  2009-09-08 03:09 -------
Created an attachment (id=18536)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18536&action=view)
assembly file from gcc.target/x86_64/abi/test_struct_returning.c compilation, 
-O3 -fomit-frame-pointer under r147824

/sw/src/fink.build/gcc45-4.4.999-20090523/darwin_objdir/gcc/xgcc
-B/sw/src/fink.build/gcc45-4.4.999-20090523/darwin_objdir/gcc/
/sw/src/fink.build/gcc45-4.4.999-20090523/gcc-4.5-20090523/gcc/testsuite/gcc.target/x86_64/abi/test_struct_returning.c
/sw/src/fink.build/gcc45-4.4.999-20090523/gcc-4.5-20090523/gcc/testsuite/gcc.target/x86_64/abi/asm-support-darwin.s
 -w  -O3 -fomit-frame-pointer --save-temps -W -Wall -Wno-abi  -lm   -o
/sw/src/fink.build/gcc45-4.4.999-20090523/darwin_objdir/gcc/testsuite/gcc/test_struct_returning.x3


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug target/41288] [4.5 Regression] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[howarth at nitro dot med dot uc dot edu]

------- Comment #7 from howarth at nitro dot med dot uc dot edu  2009-09-08 03:12 -------
The diff between the test_struct_returning.c test case as compiled with -O3
-fomit-frame-pointer under r147824 vs r147829 is...

--- r147824     2009-09-07 23:11:08.000000000 -0400
+++ r147829     2009-09-07 23:10:45.000000000 -0400
@@ -73,13 +73,10 @@
 .globl _f_600
 _f_600:
 LFB573:
-       movl    $0x42280000, %eax
-       movl    %eax, -24(%rsp)
-       movl    %eax, -20(%rsp)
-       movl    %eax, -16(%rsp)
-       movl    %eax, -12(%rsp)
+       movaps  LC4(%rip), %xmm0
+       movaps  %xmm0, -24(%rsp)
+       movq    LC5(%rip), %xmm0
        movq    -16(%rsp), %xmm1
-       movq    -24(%rsp), %xmm0
        ret
 LFE573:
        .align 4,0x90
@@ -365,7 +362,7 @@
 .globl _f_101
 _f_101:
 LFB536:
-       movsd   LC4(%rip), %xmm0
+       movsd   LC6(%rip), %xmm0
        ret
 LFE536:
        .align 4,0x90
@@ -495,7 +492,7 @@
        ret
 LFE521:
        .cstring
-LC7:
+LC9:
        .ascii "failed in test %d\12\0"
        .text
        .align 4,0x90
@@ -541,7 +538,7 @@
        .align 4,0x90
 L52:
        movq    ___stderrp@GOTPCREL(%rip), %rax
-       leaq    LC7(%rip), %rsi
+       leaq    LC9(%rip), %rsi
        movq    (%rax), %rdi
        xorl    %eax, %eax
        call    _fprintf
@@ -645,7 +642,7 @@
        je      L92
 L91:
        movq    ___stderrp@GOTPCREL(%rip), %rax
-       leaq    LC7(%rip), %rsi
+       leaq    LC9(%rip), %rsi
        movq    (%rax), %rdi
        xorl    %eax, %eax
        call    _fprintf
@@ -670,7 +667,7 @@
        .align 4,0x90
 L92:
        movq    _xmm_regs@GOTPCREL(%rip), %rax
-       movsd   LC4(%rip), %xmm0
+       movsd   LC6(%rip), %xmm0
        ucomisd (%rax), %xmm0
        jne     L87
        jp      L87
@@ -719,7 +716,7 @@
 LCFI6:
        movq    %r15, -8(%rsp)
 LCFI7:
-# 172
"/sw/src/fink.build/gcc45-4.4.999-20090523/gcc-4.5-20090523/gcc/testsuite/gcc.target/x86_64/abi/test_struct_returning.c"
1
+# 172
"/sw/src/fink.build/gcc45-4.4.999-20090524/gcc-4.5-20090524/gcc/testsuite/gcc.target/x86_64/abi/test_struct_returning.c"
1
        xor %rax, %rax
        xor %rbx, %rbx
        xor %rcx, %rcx
@@ -823,7 +820,7 @@
        .align 4,0x90
 L133:
        movq    ___stderrp@GOTPCREL(%rip), %rax
-       leaq    LC7(%rip), %rsi
+       leaq    LC9(%rip), %rsi
        movq    (%rax), %rdi
        xorl    %eax, %eax
        call    _fprintf
@@ -883,7 +880,7 @@
        .align 4,0x90
 L99:
        movq    _xmm_regs@GOTPCREL(%rip), %rax
-       movsd   LC4(%rip), %xmm0
+       movsd   LC6(%rip), %xmm0
        ucomisd (%rax), %xmm0
        jp      L119
        je      L138
@@ -930,7 +927,7 @@
        .align 4,0x90
 L139:
        movq    _xmm_regs@GOTPCREL(%rip), %rax
-       movsd   LC4(%rip), %xmm0
+       movsd   LC6(%rip), %xmm0
        ucomisd (%rax), %xmm0
        jne     L117
        jp      L117
@@ -1927,8 +1924,8 @@
 .comm _fregs,448,5
 .comm _num_iregs,4,2
 .comm _num_fregs,4,2
-.comm _current_test,4,2
-.comm _struct_addr,8,3
+.comm _current_test,4,4
+.comm _struct_addr,8,4
        .literal4
        .align 2
 LC0:
@@ -1941,8 +1938,19 @@
 LC3:
        .long   0
        .long   1078296576
-       .align 3
+       .literal16
+       .align 4
 LC4:
+       .long   1109917696
+       .long   1109917696
+       .long   1109917696
+       .long   1109917696
+       .literal8
+       .align 3
+LC5:
+       .quad   4767060206681587712
+       .align 3
+LC6:
        .long   0
        .long   1078263808
        .section
__TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug target/41288] [4.5 Regression] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[howarth at nitro dot med dot uc dot edu]

------- Comment #8 from howarth at nitro dot med dot uc dot edu  2009-09-08 03:17 -------
Attempting to obtain a backtrace for test_struct_returning.x3 built with -O3
-fomit-frame-pointer under r147829, I can only get...

[MacPro:gcc/testsuite/gcc] root# gdb ./test_struct_returning.x3
GNU gdb 6.3.50-20050815 (Apple version gdb-1344) (Fri Jul  3 01:19:56 UTC 2009)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
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This GDB was configured as "x86_64-apple-darwin"...Reading symbols for shared
libraries ... done

(gdb) r
Starting program:
/sw/src/fink.build/gcc45-4.4.999-20090524/darwin_objdir/gcc/testsuite/gcc/test_struct_returning.x3 
limit: stacksize: Can't remove limit (Invalid argument)
Reading symbols for shared libraries ++. done

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: 13 at address: 0x0000000000000000
0x0000000100001807 in f_600 ()
(gdb) bt
#0  0x0000000100001807 in f_600 ()
#1  0x000000010000376d in snapshot_ret ()
Previous frame inner to this frame (gdb could not unwind past this frame)
(gdb) 


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug target/41288] [4.5 Regression] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[irar at il dot ibm dot com]

------- Comment #9 from irar at il dot ibm dot com  2009-09-08 05:51 -------
Looks related to PR 39907.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug target/41288] [4.5 Regression] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[ubizjak at gmail dot com]

------- Comment #10 from ubizjak at gmail dot com  2009-09-08 06:56 -------
What happens if you change either of these to movups:

+       movaps  LC4(%rip), %xmm0
+       movaps  %xmm0, -24(%rsp)

My bet is on the second one, -24(%rsp) is not 16byte aligned.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug target/41288] [4.5 Regression] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[ubizjak at gmail dot com]

------- Comment #11 from ubizjak at gmail dot com  2009-09-08 07:06 -------
(In reply to comment #9)
> Looks related to PR 39907.

Ah, indeed.

Jack, just change asm-support-darwin.s as [1].

[1]
http://gcc.gnu.org/viewcvs/trunk/gcc/testsuite/gcc.target/x86_64/abi/asm-support.S?r1=147667&r2=147666&pathrev=147667


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug target/41288] [4.5 Regression] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[howarth at nitro dot med dot uc dot edu]

------- Comment #12 from howarth at nitro dot med dot uc dot edu  2009-09-09 13:02 -------
Patch posted at http://gcc.gnu.org/ml/gcc-patches/2009-09/msg00569.html.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug target/41288] [4.5 Regression] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug target/41288] [4.5 Regression] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[uros at gcc dot gnu dot org]

------- Comment #13 from uros at gcc dot gnu dot org  2009-09-18 15:17 -------
Subject: Bug 41288

Author: uros
Date: Fri Sep 18 15:16:44 2009
New Revision: 151855

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=151855
Log:
        PR testsuite/41288
        * gcc.target/x86_64/abi/asm-support-darwin.s (snapshot_ret): Preserve
        stack alignment.


Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.target/x86_64/abi/asm-support-darwin.s


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug target/41288] [4.5 Regression] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[uros at gcc dot gnu dot org]

------- Comment #14 from uros at gcc dot gnu dot org  2009-09-18 17:12 -------
Subject: Bug 41288

Author: uros
Date: Fri Sep 18 17:11:57 2009
New Revision: 151858

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=151858
Log:
        PR testsuite/41288
        * gcc.target/x86_64/abi/asm-support-darwin.s (snapshot_ret): Preserve
        stack alignment.


Modified:
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog
   
branches/gcc-4_4-branch/gcc/testsuite/gcc.target/x86_64/abi/asm-support-darwin.s


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug target/41288] [4.5 Regression] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[uros at gcc dot gnu dot org]

------- Comment #15 from uros at gcc dot gnu dot org  2009-09-18 17:12 -------
Subject: Bug 41288

Author: uros
Date: Fri Sep 18 17:12:41 2009
New Revision: 151859

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=151859
Log:
        PR testsuite/41288
        * gcc.target/x86_64/abi/asm-support-darwin.s (snapshot_ret): Preserve
        stack alignment.


Modified:
    branches/gcc-4_3-branch/gcc/testsuite/ChangeLog
   
branches/gcc-4_3-branch/gcc/testsuite/gcc.target/x86_64/abi/asm-support-darwin.s


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288

[Bug testsuite/41288] [4.5 Regression] gcc.target/x86_64/abi/test_struct_returning.c regressions on *-apple-darwin* at -m64

[ubizjak at gmail dot com]

------- Comment #16 from ubizjak at gmail dot com  2009-09-18 17:14 -------
Fixed everywhere.


-- 

ubizjak at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
          Component|target                      |testsuite
           Keywords|ABI, wrong-code             |
         Resolution|                            |FIXED
   Target Milestone|4.5.0                       |4.3.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41288