Measuring alignment

[Andreas Jaeger]

Hi Richard,

here're the results from make check after applying all of your patches:
FAIL: gcc.c-torture/compile/20000329-1.c,  -O2  
FAIL: gcc.c-torture/compile/20000329-1.c,  -O3 -fomit-frame-pointer  
FAIL: gcc.c-torture/compile/20000329-1.c,  -O3 -fomit-frame-pointer -funroll-loops  
FAIL: gcc.c-torture/compile/20000329-1.c,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  
FAIL: gcc.c-torture/compile/20000329-1.c,  -O3 -g  
FAIL: gcc.c-torture/execute/20000225-1.c execution,  -O2 
FAIL: gcc.c-torture/execute/20000225-1.c execution,  -O3 -fomit-frame-pointer 
FAIL: gcc.c-torture/execute/20000225-1.c execution,  -O3 -fomit-frame-pointer -funroll-loops 
FAIL: gcc.c-torture/execute/20000225-1.c execution,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions 
FAIL: gcc.c-torture/execute/20000225-1.c execution,  -O3 -g 
FAIL: gcc.c-torture/execute/20000225-1.c execution,  -Os 
FAIL: gcc.c-torture/execute/991221-1.c execution,  -O1 
FAIL: gcc.c-torture/execute/991221-1.c execution,  -O2 
FAIL: gcc.c-torture/execute/991221-1.c execution,  -O3 -fomit-frame-pointer 
FAIL: gcc.c-torture/execute/991221-1.c execution,  -O3 -g 
FAIL: gcc.c-torture/execute/991221-1.c execution,  -Os 
WARNING: program timed out.
FAIL: gcc.c-torture/execute/memcpy-1.c compilation,  -O1 
WARNING: program timed out.
FAIL: gcc.c-torture/execute/memcpy-1.c compilation,  -O2 
WARNING: program timed out.
FAIL: gcc.c-torture/execute/memcpy-1.c compilation,  -O3 -fomit-frame-pointer 
WARNING: program timed out.
FAIL: gcc.c-torture/execute/memcpy-1.c compilation,  -O3 -fomit-frame-pointer -funroll-loops 
WARNING: program timed out.
FAIL: gcc.c-torture/execute/memcpy-1.c compilation,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions 
WARNING: program timed out.
FAIL: gcc.c-torture/execute/memcpy-1.c compilation,  -O3 -g 
WARNING: program timed out.
FAIL: gcc.c-torture/execute/memcpy-1.c compilation,  -Os 
FAIL: gcc.c-torture/execute/ieee/fp-cmp-4.c compilation,  -O0 
FAIL: gcc.c-torture/execute/ieee/fp-cmp-4.c compilation,  -O1 
FAIL: gcc.c-torture/execute/ieee/fp-cmp-4.c compilation,  -O2 
FAIL: gcc.c-torture/execute/ieee/fp-cmp-4.c compilation,  -O3 -fomit-frame-pointer 
FAIL: gcc.c-torture/execute/ieee/fp-cmp-4.c compilation,  -O3 -fomit-frame-pointer -funroll-loops 
FAIL: gcc.c-torture/execute/ieee/fp-cmp-4.c compilation,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions 
FAIL: gcc.c-torture/execute/ieee/fp-cmp-4.c compilation,  -O3 -g 
FAIL: gcc.c-torture/execute/ieee/fp-cmp-4.c compilation,  -Os 
WARNING: program timed out.
FAIL: gcc.c-torture/unsorted/memtst.c,  -O1  
WARNING: program timed out.
FAIL: gcc.c-torture/unsorted/memtst.c,  -O2  
WARNING: program timed out.
FAIL: gcc.c-torture/unsorted/memtst.c,  -O3 -fomit-frame-pointer  
WARNING: program timed out.
FAIL: gcc.c-torture/unsorted/memtst.c,  -O3 -fomit-frame-pointer -funroll-loops 
WARNING: program timed out.
FAIL: gcc.c-torture/unsorted/memtst.c,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  
WARNING: program timed out.
FAIL: gcc.c-torture/unsorted/memtst.c,  -O3 -g  
WARNING: program timed out.
FAIL: gcc.c-torture/unsorted/memtst.c,  -Os  
FAIL: gcc.dg/990424-1.c execution test
FAIL: gcc.dg/991214-1.c (test for excess errors)
FAIL: gcc.dg/cpp-ifparen.c with paren (test for bogus messages, line 2)
FAIL: gcc.dg/cpp-redef-2.c anon varargs (test for warnings, line 15)
FAIL: gcc.dg/noreturn-1.c this function should not get any warnings (test for bogus messages, line 50)
FAIL: gcc.dg/noreturn-1.c detect return from tail call (test for warnings, line 57)

The memtest and memcpy failures are new - I'm not sure which else are
new.  

The problem of excessive memory usage which I've reported has been
confirmed.  cc1 uses sometimes more than 256 MB and can't be compiled
anymore on my notebook with 128 MB of RAM and 128 MB of swap (I
managed to do this before your changes went in).

My system: glibc 2.1.3, i686-linux.

Andreas
-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.rhein-neckar.de