llvm-6502/test/CodeGen/SystemZ
Richard Sandiford 23c9710636 [SystemZ] Optimize comparisons with truncated extended loads
If the extension of a loaded value is compared against zero and used in
other arithmetic, InstCombine will change the comparison to use the
unextended load.  It's also possible that the comparison could be against
the unextended load from the outset.

In DAG form this becomes a truncation of an extending load.  We want to
strip the truncation if possible so that we can use load-and-test instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197804 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-20 11:56:02 +00:00
..
Large Add TargetLowering::prepareVolatileOrAtomicLoad 2013-12-10 10:36:34 +00:00
addr-01.ll
addr-02.ll
addr-03.ll
alias-01.ll [SystemZ] Set usaAA to true 2013-10-28 13:53:37 +00:00
alloca-01.ll
alloca-02.ll
and-01.ll
and-02.ll
and-03.ll
and-04.ll
and-05.ll
and-06.ll
and-07.ll
and-08.ll TBAA: update tbaa format from scalar format to struct-path aware format. 2013-09-30 18:17:55 +00:00
args-01.ll
args-02.ll
args-03.ll
args-04.ll
args-05.ll
args-06.ll
asm-01.ll
asm-02.ll
asm-03.ll
asm-04.ll
asm-05.ll
asm-06.ll
asm-07.ll
asm-08.ll
asm-09.ll
asm-10.ll
asm-11.ll
asm-12.ll
asm-13.ll
asm-14.ll
asm-15.ll
asm-16.ll
asm-17.ll
asm-18.ll [SystemZ] Add comparisons of high words and memory 2013-10-01 15:00:44 +00:00
atomic-load-01.ll Add TargetLowering::prepareVolatileOrAtomicLoad 2013-12-10 10:49:34 +00:00
atomic-load-02.ll Add TargetLowering::prepareVolatileOrAtomicLoad 2013-12-10 10:49:34 +00:00
atomic-load-03.ll Add TargetLowering::prepareVolatileOrAtomicLoad 2013-12-10 10:49:34 +00:00
atomic-load-04.ll Add TargetLowering::prepareVolatileOrAtomicLoad 2013-12-10 10:49:34 +00:00
atomic-store-01.ll Add TargetLowering::prepareVolatileOrAtomicLoad 2013-12-10 10:49:34 +00:00
atomic-store-02.ll Add TargetLowering::prepareVolatileOrAtomicLoad 2013-12-10 10:49:34 +00:00
atomic-store-03.ll Add TargetLowering::prepareVolatileOrAtomicLoad 2013-12-10 10:49:34 +00:00
atomic-store-04.ll Add TargetLowering::prepareVolatileOrAtomicLoad 2013-12-10 10:49:34 +00:00
atomicrmw-add-01.ll
atomicrmw-add-02.ll
atomicrmw-add-03.ll
atomicrmw-add-04.ll
atomicrmw-and-01.ll
atomicrmw-and-02.ll
atomicrmw-and-03.ll
atomicrmw-and-04.ll
atomicrmw-minmax-01.ll
atomicrmw-minmax-02.ll
atomicrmw-minmax-03.ll [SystemZ] Automatically detect zEC12 and z196 hosts 2013-10-31 12:14:17 +00:00
atomicrmw-minmax-04.ll [SystemZ] Automatically detect zEC12 and z196 hosts 2013-10-31 12:14:17 +00:00
atomicrmw-nand-01.ll
atomicrmw-nand-02.ll
atomicrmw-nand-03.ll
atomicrmw-nand-04.ll
atomicrmw-or-01.ll
atomicrmw-or-02.ll
atomicrmw-or-03.ll
atomicrmw-or-04.ll
atomicrmw-sub-01.ll
atomicrmw-sub-02.ll
atomicrmw-sub-03.ll
atomicrmw-sub-04.ll
atomicrmw-xchg-01.ll
atomicrmw-xchg-02.ll
atomicrmw-xchg-03.ll
atomicrmw-xchg-04.ll
atomicrmw-xor-01.ll
atomicrmw-xor-02.ll
atomicrmw-xor-03.ll
atomicrmw-xor-04.ll
branch-01.ll
branch-02.ll
branch-03.ll
branch-04.ll
branch-05.ll
branch-06.ll
branch-07.ll [SystemZ] Improve handling of SETCC 2013-10-16 11:10:55 +00:00
branch-08.ll
branch-09.ll
branch-10.ll
bswap-01.ll
bswap-02.ll [SystemZ] Set usaAA to true 2013-10-28 13:53:37 +00:00
bswap-03.ll
bswap-04.ll
bswap-05.ll
call-01.ll
call-02.ll
call-03.ll
cmpxchg-01.ll
cmpxchg-02.ll
cmpxchg-03.ll
cmpxchg-04.ll
cond-load-01.ll
cond-load-02.ll
cond-move-01.ll
cond-store-01.ll Add TargetLowering::prepareVolatileOrAtomicLoad 2013-12-10 10:49:34 +00:00
cond-store-02.ll Add TargetLowering::prepareVolatileOrAtomicLoad 2013-12-10 10:49:34 +00:00
cond-store-03.ll Add TargetLowering::prepareVolatileOrAtomicLoad 2013-12-10 10:49:34 +00:00
cond-store-04.ll Add TargetLowering::prepareVolatileOrAtomicLoad 2013-12-10 10:49:34 +00:00
cond-store-05.ll
cond-store-06.ll
cond-store-07.ll
cond-store-08.ll
fp-abs-01.ll
fp-abs-02.ll
fp-add-01.ll
fp-add-02.ll
fp-add-03.ll
fp-cmp-01.ll [SystemZ] Automatically detect zEC12 and z196 hosts 2013-10-31 12:14:17 +00:00
fp-cmp-02.ll [SystemZ] Automatically detect zEC12 and z196 hosts 2013-10-31 12:14:17 +00:00
fp-cmp-03.ll [SystemZ] Automatically detect zEC12 and z196 hosts 2013-10-31 12:14:17 +00:00
fp-cmp-04.ll [SystemZ] Optimize fcmp X, 0 in cases where X is also negated 2013-12-11 11:45:08 +00:00
fp-const-01.ll
fp-const-02.ll
fp-const-03.ll
fp-const-04.ll
fp-const-05.ll
fp-const-06.ll
fp-const-07.ll
fp-const-08.ll
fp-const-09.ll
fp-conv-01.ll
fp-conv-02.ll
fp-conv-03.ll
fp-conv-04.ll
fp-conv-05.ll
fp-conv-06.ll
fp-conv-07.ll
fp-conv-08.ll
fp-conv-09.ll
fp-conv-10.ll
fp-conv-11.ll
fp-conv-12.ll
fp-copysign-01.ll
fp-div-01.ll
fp-div-02.ll
fp-div-03.ll
fp-move-01.ll
fp-move-02.ll [SystemZ] Automatically detect zEC12 and z196 hosts 2013-10-31 12:14:17 +00:00
fp-move-03.ll
fp-move-04.ll
fp-move-05.ll
fp-move-06.ll
fp-move-07.ll
fp-move-08.ll
fp-move-09.ll [SystemZ] Extend pseudo conditional 8- and 16-bit stores to high words 2013-10-01 14:33:55 +00:00
fp-mul-01.ll
fp-mul-02.ll
fp-mul-03.ll
fp-mul-04.ll
fp-mul-05.ll
fp-mul-06.ll
fp-mul-07.ll
fp-mul-08.ll
fp-mul-09.ll
fp-neg-01.ll
fp-round-01.ll
fp-round-02.ll
fp-sqrt-01.ll
fp-sqrt-02.ll
fp-sqrt-03.ll
fp-sub-01.ll
fp-sub-02.ll
fp-sub-03.ll
frame-01.ll
frame-02.ll
frame-03.ll
frame-04.ll
frame-05.ll
frame-06.ll
frame-07.ll
frame-08.ll
frame-09.ll
frame-10.ll
frame-11.ll
frame-13.ll Add TargetLowering::prepareVolatileOrAtomicLoad 2013-12-10 10:36:34 +00:00
frame-14.ll Add TargetLowering::prepareVolatileOrAtomicLoad 2013-12-10 10:36:34 +00:00
frame-15.ll [SystemZ] Automatically detect zEC12 and z196 hosts 2013-10-31 12:14:17 +00:00
frame-16.ll [SystemZ] Automatically detect zEC12 and z196 hosts 2013-10-31 12:14:17 +00:00
frame-17.ll
frame-18.ll [SystemZ] Automatically detect zEC12 and z196 hosts 2013-10-31 12:14:17 +00:00
insert-01.ll
insert-02.ll
insert-03.ll
insert-04.ll
insert-05.ll
insert-06.ll Extend (truncate (load)) folding 2013-12-11 11:37:27 +00:00
int-abs-01.ll [SystemZ] Extend integer absolute selection 2013-12-13 15:35:00 +00:00
int-add-01.ll
int-add-02.ll
int-add-03.ll
int-add-04.ll
int-add-05.ll
int-add-06.ll
int-add-07.ll
int-add-08.ll
int-add-09.ll [SystemZ] Set usaAA to true 2013-10-28 13:53:37 +00:00
int-add-10.ll [SystemZ] Set usaAA to true 2013-10-28 13:53:37 +00:00
int-add-11.ll [SystemZ] Automatically detect zEC12 and z196 hosts 2013-10-31 12:14:17 +00:00
int-add-12.ll [SystemZ] Use A(G)SI when spilling the target of a constant addition 2013-10-15 08:42:59 +00:00
int-add-13.ll
int-add-14.ll
int-add-15.ll
int-add-16.ll
int-cmp-01.ll
int-cmp-02.ll
int-cmp-03.ll
int-cmp-04.ll
int-cmp-05.ll [SystemZ] Extend the use of C(L)GFR 2013-12-06 09:56:50 +00:00
int-cmp-06.ll [SystemZ] Extend the use of C(L)GFR 2013-12-06 09:56:50 +00:00
int-cmp-07.ll
int-cmp-08.ll
int-cmp-09.ll
int-cmp-10.ll
int-cmp-11.ll
int-cmp-12.ll
int-cmp-13.ll
int-cmp-14.ll
int-cmp-15.ll
int-cmp-16.ll
int-cmp-17.ll
int-cmp-18.ll
int-cmp-19.ll
int-cmp-20.ll
int-cmp-21.ll
int-cmp-22.ll
int-cmp-23.ll
int-cmp-24.ll
int-cmp-25.ll
int-cmp-26.ll
int-cmp-27.ll
int-cmp-28.ll
int-cmp-29.ll
int-cmp-30.ll
int-cmp-31.ll
int-cmp-32.ll
int-cmp-33.ll
int-cmp-34.ll
int-cmp-35.ll
int-cmp-36.ll
int-cmp-37.ll
int-cmp-38.ll
int-cmp-39.ll
int-cmp-40.ll
int-cmp-41.ll
int-cmp-42.ll
int-cmp-43.ll
int-cmp-44.ll [SystemZ] Optimize comparisons with truncated extended loads 2013-12-20 11:56:02 +00:00
int-cmp-45.ll
int-cmp-46.ll
int-cmp-47.ll [SystemZ] Make more use of TMHH 2013-12-13 15:46:55 +00:00
int-cmp-48.ll
int-cmp-49.ll [SystemZ] Fix TMHH and TMHL usage for z10 with -O0 2013-11-22 17:28:28 +00:00
int-const-01.ll
int-const-02.ll
int-const-03.ll
int-const-04.ll
int-const-05.ll
int-const-06.ll
int-conv-01.ll
int-conv-02.ll [SystemZ] Automatically detect zEC12 and z196 hosts 2013-10-31 12:14:17 +00:00
int-conv-03.ll
int-conv-04.ll
int-conv-05.ll
int-conv-06.ll [SystemZ] Automatically detect zEC12 and z196 hosts 2013-10-31 12:14:17 +00:00
int-conv-07.ll
int-conv-08.ll
int-conv-09.ll
int-conv-10.ll
int-conv-11.ll [SystemZ] Add register zero extensions involving at least one high word 2013-10-01 12:49:07 +00:00
int-div-01.ll Revert "Add -mcpu=z10 to SystemZ tests." 2013-12-18 23:04:37 +00:00
int-div-02.ll
int-div-03.ll Revert "Add -mcpu=z10 to SystemZ tests." 2013-12-18 23:04:37 +00:00
int-div-04.ll Revert "Add -mcpu=z10 to SystemZ tests." 2013-12-18 23:04:37 +00:00
int-div-05.ll
int-div-06.ll
int-move-01.ll
int-move-02.ll
int-move-03.ll
int-move-04.ll
int-move-05.ll
int-move-06.ll
int-move-07.ll
int-move-08.ll
int-move-09.ll
int-mul-01.ll
int-mul-02.ll
int-mul-03.ll
int-mul-04.ll
int-mul-05.ll
int-mul-06.ll
int-mul-07.ll
int-mul-08.ll Revert "Add -mcpu=z10 to SystemZ tests." 2013-12-18 23:04:37 +00:00
int-neg-01.ll
int-neg-02.ll [SystemZ] Extend integer absolute selection 2013-12-13 15:35:00 +00:00
int-sub-01.ll
int-sub-02.ll
int-sub-03.ll
int-sub-04.ll
int-sub-05.ll
int-sub-06.ll
int-sub-07.ll
int-sub-08.ll
int-sub-09.ll
la-01.ll
la-02.ll
la-03.ll
la-04.ll
lit.local.cfg
loop-01.ll
memchr-01.ll
memchr-02.ll
memcmp-01.ll
memcmp-02.ll
memcpy-01.ll
memcpy-02.ll TBAA: handle scalar TBAA format and struct-path aware TBAA format. 2013-09-27 18:34:27 +00:00
memset-01.ll
memset-02.ll
memset-03.ll
memset-04.ll
or-01.ll
or-02.ll
or-03.ll
or-04.ll
or-05.ll
or-06.ll
or-07.ll
or-08.ll
prefetch-01.ll
risbg-01.ll [SystemZ] Extend RISBG optimization 2013-12-20 11:49:48 +00:00
risbg-02.ll
rnsbg-01.ll
rosbg-01.ll
rxsbg-01.ll
selectcc-01.ll [SystemZ] Optimize selects between 0 and -1 2013-12-06 09:53:09 +00:00
selectcc-02.ll [SystemZ] Optimize selects between 0 and -1 2013-12-06 09:53:09 +00:00
selectcc-03.ll [SystemZ] Optimize selects between 0 and -1 2013-12-06 09:53:09 +00:00
serialize-01.ll Add TargetLowering::prepareVolatileOrAtomicLoad 2013-12-10 10:36:34 +00:00
setcc-01.ll [SystemZ] Automatically detect zEC12 and z196 hosts 2013-10-31 12:14:17 +00:00
setcc-02.ll [SystemZ] Automatically detect zEC12 and z196 hosts 2013-10-31 12:14:17 +00:00
shift-01.ll
shift-02.ll
shift-03.ll
shift-04.ll
shift-05.ll
shift-06.ll
shift-07.ll
shift-08.ll
shift-09.ll
shift-10.ll Replace sra with srl if a single sign bit is required 2013-10-17 11:16:57 +00:00
spill-01.ll Add TargetLowering::prepareVolatileOrAtomicLoad 2013-12-10 10:36:34 +00:00
strcmp-01.ll
strcmp-02.ll
strcpy-01.ll
strlen-01.ll
strlen-02.ll
tls-01.ll
unaligned-01.ll [SystemZ] Set usaAA to true 2013-10-28 13:53:37 +00:00
xor-01.ll
xor-02.ll
xor-03.ll
xor-04.ll
xor-05.ll
xor-06.ll
xor-07.ll
xor-08.ll