Hello,
Enclosed is a c source and the assembly output of a small c loop.
The first instruction of the loop (label: BB6_main) is:
ls4 r33=[r36].
To my understanding, "r36" is not initialized in the first time the loop
is executed, (no reg rotation was done at this stage). To my
understanding pr17 is set to "1" in the first execution of the loop. Am
I worng?
Thanks,
--
Raya Leviathan
Tel. 972-8-9344208 (office)
Tel. 972-3-6358481 (home)
Email: raya@xxxxxxxxxxxxxxxxxxxxx
modulo-scheduling.c
Description: application/unknown-content-type-c_auto_file
modulo-scheduling_1.s
Description: application/unknown-content-type-s_auto_file
sgicc WARNING: modulo-scheduling_1.s modulo-scheduling_1.s will overwrite a
file that has a source-file suffix
SGIcc Compilers: Version 0.01.0-9
/usr/bin/gcc -D_LANGUAGE_C -D_SGI_COMPILER_VERSION=001 -D__host_ia32
-D__INLINE_INTRINSICS -v -D__OPTIMIZE__ -D_LP64 -D__ia64=1 modulo-scheduling.c
-E > /tmp/cci.Uy7Kof
Reading specs from /usr/lib/gcc-lib/ia64-hp-linux/2.9-ia64-000216/specs
gcc version 2.9-ia64-000216 snap-000324
/usr/lib/gcc-lib/ia64-hp-linux/2.9-ia64-000216/cpp -lang-c -v -isystem
/usr/lib/gcc-lib/ia64-sgi-linux/sgicc-1.0/include -D__GNUC__=2
-D__GNUC_MINOR__=9 -D__ia64 -D__ia64__ -D__linux -D__linux__ -D_LONGLONG
-Dlinux -Dunix -D__LP64__ -D__ELF__ -D__ia64 -D__ia64__ -D__linux -D__linux__
-D_LONGLONG -D__linux__ -D__unix__ -D__LP64__ -D__ELF__ -D__linux -D__unix
-Asystem(linux) -Acpu(ia64) -Amachine(ia64) -D__LONG_MAX__=9223372036854775807L
-D_LANGUAGE_C -D_SGI_COMPILER_VERSION=001 -D__host_ia32 -D__INLINE_INTRINSICS
-D__OPTIMIZE__ -D_LP64 -D__ia64=1 modulo-scheduling.c
GNU CPP version 2.9-ia64-000216 snap-000324 (IA-64)
#include "..." search starts here:
#include <...> search starts here:
/usr/lib/gcc-lib/ia64-sgi-linux/sgicc-1.0/include
/usr/lib/gcc-lib/ia64-hp-linux/2.9-ia64-000216/include
/usr/lib/gcc-lib/ia64-hp-linux/2.9-ia64-000216/../../../../ia64-hp-linux/include
End of search list.
The following default directories have been omitted from the search path:
/usr/lib/gcc-lib/ia64-hp-linux/2.9-ia64-000216/../../../../include/g++-3
/usr/lib/gcc-lib/ia64-hp-linux/2.9-ia64-000216/../../../../ia64-hp-linux/sys-include
End of omitted list.
/usr/lib/gcc-lib/ia64-sgi-linux/sgicc-1.0/gfec -O3 -g3 -dx -version -quiet
-dumpbase modulo-scheduling.c /tmp/cci.Uy7Kof -o /tmp/ccB.qIKHmm
GNU C version sgicc-1.0 (ia64-linux) compiled by GNU C version 2.95.2 19991024
(release).
/usr/lib/gcc-lib/ia64-sgi-linux/sgicc-1.0/be -PHASE:l:w:c -G8 -TENV:PIC -m1
-INTERNAL:return_val=on -INTERNAL:mldid_mstid=on -INTERNAL:return_info=on -show
-O3 -g3 -TARG:abi=i64 -LANG:=ansi_c -fB,/tmp/ccB.qIKHmm -s
-fs,modulo-scheduling_1.s modulo-scheduling.c
Compiling modulo-scheduling.c (/tmp/ccB.qIKHmm) -- Back End
Compiling main(0)
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