RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-01-31 20:51:52 +01:00
Code Issues Projects Releases Wiki Activity
45,819 Commits 4 Branches 5 Tags
Commit Graph

5147 Commits

Author SHA1 Message Date
Chris Lattner
57077413f1 eliminate unneeded parens. 
llvm-svn: 68939
 2009-04-13 05:38:23 +00:00
Chris Lattner
8ad1efdfe1 "There was a typo in my previous patch which leads to miscompilation of 
strncat :(

strncat(foo, "bar", 99)
would be optimized to
memcpy(foo+strlen(foo), "bar", 100, 1)
instead of
memcpy(foo+strlen(foo), "bar", 4, 1)"

Patch by Benjamin Kramer!

llvm-svn: 68905
 2009-04-12 18:22:33 +00:00
Chris Lattner
f03202e76d add some optimizations for strncpy/strncat and factor some 
code.  Patch by Benjamin Kramer!

llvm-svn: 68885
 2009-04-12 05:06:39 +00:00
Chris Lattner
7d75f78b92 Instcombine should not promote whole computation trees to "strange" 
integer types, unless they are already strange.  This prevents it from
turning the code produced by SROA into crazy libcalls and stuff that 
the code generator can't handle.  In the attached example, the result
was an i96 multiply that caused the x86 backend to assert.

Note that if TargetData had an idea of what the legal types are for
a target that this could be used to stop instcombine from introducing
i64 muls, as Scott wanted.

llvm-svn: 68598
 2009-04-08 05:41:03 +00:00
Chris Lattner
2f520929d4 fix rdar://6762290, a crash compiling cxx filt with clang. 
llvm-svn: 68500
 2009-04-07 05:03:34 +00:00
Chris Lattner
e872752d66 remove empty section 
llvm-svn: 68485
 2009-04-07 02:55:53 +00:00
Ed Schouten
ff25f858fd Let the strcat optimizer return the pointer to the start of the buffer, 
instead of the place where it started to perform the string copy.

- PR3661
- Patch by Benjamin Kramer!

llvm-svn: 68443
 2009-04-06 13:06:48 +00:00
Owen Anderson
851ce6d1d5 Reapply r68211, with the miscompilations it caused fixed. 
llvm-svn: 68262
 2009-04-01 23:53:49 +00:00
Dan Gohman
a134448980 Revert r68172. It caused regressions in 
Applications/Burg/burg
  Applications/ClamAV/clamscan
and many other tests.

llvm-svn: 68211
 2009-04-01 16:37:47 +00:00
Owen Anderson
d7c837bb4b Enhance GVN to propagate simple conditionals. This fixes PR3921. 
llvm-svn: 68172
 2009-04-01 01:20:45 +00:00
Chris Lattner
87466e0995 Make the key of ValueRankMap an AssertingVH, so that we die violently 
if it dangles.

llvm-svn: 68150
 2009-03-31 22:13:29 +00:00
Evan Cheng
c419350132 Throttle back "fold select into operand" transformation. InstCombine should not generate selects of two constants unless they are selects of 0 and 1. 
e.g.
define i32 @t1(i32 %c, i32 %x) nounwind {
       %t1 = icmp eq i32 %c, 0
       %t2 = lshr i32 %x, 18
       %t3 = select i1 %t1, i32 %t2, i32 %x
       ret i32 %t3
}

was turned into

define i32 @t2(i32 %c, i32 %x) nounwind {
       %t1 = icmp eq i32 %c, 0
       %t2 = select i1 %t1, i32 18, i32 0
       %t3 = lshr i32 %x, %t2
       ret i32 %t3
}

For most targets, that means materializing two constants and then a select. e.g. On x86-64

movl    %esi, %eax
shrl    $18, %eax
testl   %edi, %edi
cmovne  %esi, %eax
ret

=>

xorl    %eax, %eax
testl   %edi, %edi
movl    $18, %ecx
cmovne  %eax, %ecx
movl    %esi, %eax
shrl    %cl, %eax
ret

Also, the optimizer and codegen can reason about shl / and / add, etc. by a constant. This optimization will hinder optimizations using ComputeMaskedBits.

llvm-svn: 68142
 2009-03-31 20:42:45 +00:00
Devang Patel
7fa69ef109 Update call graph after inlining invoke. 
Patch by Jay Foad.

llvm-svn: 68120
 2009-03-31 17:36:12 +00:00
Devang Patel
ec65625744 Loop Index Split can eliminate a loop if it can determin if loop body is executed only once. There was a bug in determining IV based value of the iteration for which the loop body is executed. Fix it. 
llvm-svn: 68071
 2009-03-30 22:24:10 +00:00
Duncan Sands
e13276db7f Revert r67798: it breaks llvm-gcc bootstrap on x86-64-linux, presumably due to 
a miscompilation.

make[4]: Entering directory `gcc-4.2.llvm-objects/x86_64-unknown-linux-gnu/libstdc++-v3/include'
if [ ! -d "./x86_64-unknown-linux-gnu/bits/stdtr1c++.h.gch" ]; then \
          mkdir -p ./x86_64-unknown-linux-gnu/bits/stdtr1c++.h.gch; \
        fi; \
        gcc-4.2.llvm-objects/./gcc/xgcc -shared-libgcc -Bgcc-4.2.llvm-objects/./gcc -nostdinc++ 
-Lgcc-4.2.llvm-objects/x86_64-unknown-linux-gnu/libstdc++-v3/src -Lgcc-4.2.llvm-objects/x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs 
-B/usr/local/gnat-llvm/x86_64-unknown-linux-gnu/bin/ -B/usr/local/gnat-llvm/x86_64-unknown-linux-gnu/lib/ -isystem 
/usr/local/gnat-llvm/x86_64-unknown-linux-gnu/include -isystem /usr/local/gnat-llvm/x86_64-unknown-linux-gnu/sys-include -Winvalid-pch -Wno-deprecated -x 
c++-header -g -O2  -D_GNU_SOURCE -Igcc-4.2.llvm-objects/x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu 
-Igcc-4.2.llvm-objects/x86_64-unknown-linux-gnu/libstdc++-v3/include -Igcc-4.2.llvm/libstdc++-v3/libsupc++ -O2 -g 
gcc-4.2.llvm/libstdc++-v3/include/precompiled/stdtr1c++.h -o x86_64-unknown-linux-gnu/bits/stdtr1c++.h.gch/O2g.gch
In file included from gcc-4.2.llvm-objects/x86_64-unknown-linux-gnu/libstdc++-v3/include/tr1/repeat.h:247,
                 from gcc-4.2.llvm-objects/x86_64-unknown-linux-gnu/libstdc++-v3/include/tr1/functional:1098,
                 from gcc-4.2.llvm/libstdc++-v3/include/precompiled/stdtr1c++.h:53:
gcc-4.2.llvm-objects/x86_64-unknown-linux-gnu/libstdc++-v3/include/tr1/functional_iterate.h:417: internal compiler error: in ggc_recalculate_in_use_p, at 
ggc-page.c:1602
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://llvm.org/bugs/> for instructions.
make[4]: *** [x86_64-unknown-linux-gnu/bits/stdtr1c++.h.gch/O2g.gch] Error 1

llvm-svn: 67839
 2009-03-27 14:56:47 +00:00
Dale Johannesen
9fd8bb432f One more place to skip debug info. 
llvm-svn: 67811
 2009-03-27 01:13:37 +00:00
Devang Patel
a2211c26d7 While hoisting an instruction, update alias info set tracker. 
llvm-svn: 67798
 2009-03-26 23:48:52 +00:00
Dale Johannesen
03cedf1d8b Skip debug info one more place. (This one gets 
called from llc, not opt, but it's an IR level
optimization nevertheless.)

llvm-svn: 67724
 2009-03-26 01:15:07 +00:00
Devang Patel
8c31ea5290 Before deleting a basic block, give other loop passes a chance cleanup analysis values, related to the instructions in the basic block. 
llvm-svn: 67719
 2009-03-25 23:57:48 +00:00
Chris Lattner
c055403764 Fix PR3874 by restoring a condition I removed, but making it more 
precise than it used to be.

llvm-svn: 67662
 2009-03-25 00:28:58 +00:00
Chris Lattner
be6ee56fb2 oops, I intended to remove this, not comment it out. Thanks Duncan! 
llvm-svn: 67657
 2009-03-24 23:48:25 +00:00
Chris Lattner
aabd3eeeff canonicalize inttoptr and ptrtoint instructions which cast pointers 
to/from integer types that are not intptr_t to convert to intptr_t
then do an integer conversion to the dest type.  This exposes the
cast to the optimizer.

llvm-svn: 67638
 2009-03-24 18:35:40 +00:00
Chris Lattner
51a4134e1c two changes: 
1. Make instcombine always canonicalize trunc x to i1 into an icmp(x&1).  This 
   exposes the AND to other instcombine xforms and is more of what the code
   generator expects.
2. Rewrite the remaining trunc pattern match to use 'match', which 
   simplifies it a lot.
   

llvm-svn: 67635
 2009-03-24 18:15:30 +00:00
Dale Johannesen
0f8e2bcd98 Use a SmallPtrSet instead of std::set. 
llvm-svn: 67578
 2009-03-23 23:39:20 +00:00
Dan Gohman
18daca0895 Now that errs() is properly non-buffered, there's no need to 
explicitly flush it.

llvm-svn: 67526
 2009-03-23 15:57:19 +00:00
Duncan Sands
3c115770e7 Factorize out a concept - no functionality change. 
llvm-svn: 67454
 2009-03-21 21:27:31 +00:00
Chris Lattner
623662e8e1 Fix instcombine to not introduce undefined shifts when merging two 
shifts together.  This fixes PR3851.

llvm-svn: 67411
 2009-03-20 22:41:15 +00:00
Duncan Sands
926d062a48 Don't load values out of global constants with weak 
linkage: the value may be replaced with something
different at link time.  (Frontends that want to
allow values to be loaded out of weak constants can
give their constants weak_odr linkage).

llvm-svn: 67407
 2009-03-20 21:53:29 +00:00
Dale Johannesen
672ef54d0f Clear the cached cost when removing a function in 
the inliner; prevents nondeterministic behavior
when the same address is reallocated.
Don't build call graph nodes for debug intrinsic calls;
they're useless, and there were typically a lot of them.

llvm-svn: 67311
 2009-03-19 18:03:56 +00:00
Dale Johannesen
1d76ebc9ed Fix comment typo. 
llvm-svn: 67307
 2009-03-19 17:23:29 +00:00
Dale Johannesen
15de950459 This pass keeps a map of Instructions to Rank numbers, 
and was deleting Instructions without clearing the
corresponding map entry.  This led to nondeterministic
behavior if the same address got allocated to another
Instruction within a short time.

llvm-svn: 67306
 2009-03-19 17:22:53 +00:00
Nick Lewycky
a0dcd7e173 Remove strange extra semicolons. 
llvm-svn: 67287
 2009-03-19 05:51:39 +00:00
Chris Lattner
6dce8d4135 aha, DAE does have to think about PHI nodes. Many thanks to "Dr Evil" (aka Duncan) 
for pointing this out :)

llvm-svn: 67212
 2009-03-18 16:48:45 +00:00
Chris Lattner
0542f9f1ba Fix PR3826 - InstComb assert with vector shift, by not calling ComputeNumSignBits on a vector. 
llvm-svn: 67211
 2009-03-18 16:32:19 +00:00
Chris Lattner
e4f0e25d07 add an assertion to make it clear that PHI nodes are not allowed. 
llvm-svn: 67210
 2009-03-18 16:23:56 +00:00
Zhou Sheng
4e5f2198ff Explicitly check for StoreInst, do not lose the chance to delete 
unused loads or bitcasts.

llvm-svn: 67202
 2009-03-18 12:48:48 +00:00
Zhou Sheng
fd26fc58bd Revert my previous change on Local.cpp, instead, fix the bug on scalarrepl. 
If the instruction has no users, it is also not only used by debug info 
and should not be deleted.

llvm-svn: 67194
 2009-03-18 10:13:08 +00:00
Zhou Sheng
90fc23d03d Fix a bug. 
If I->use_empty(), this method should return false.

llvm-svn: 67180
 2009-03-18 07:56:13 +00:00
Chris Lattner
7bef74e92f Fix PR3807 by inserting 'insertelement' instructions in the normal dest of 
an invoke instead of after the invoke (in its block), which is invalid.

llvm-svn: 67139
 2009-03-18 00:31:45 +00:00
Chris Lattner
ee2d69fc7b LSR shouldn't ever try to hack on integer IV's larger than 64-bits. Right now 
it is not APInt clean, but even when it is it needs to be evaluated carefully
to determine whether it is actually profitable.

This fixes a crash on PR3806

llvm-svn: 67134
 2009-03-17 23:58:30 +00:00
Chris Lattner
43ae27a75e Remove a condition which is always true. 
llvm-svn: 67089
 2009-03-17 17:55:15 +00:00
Dale Johannesen
0e13f2b022 Fix a debug info dependency in jump threading. 
llvm-svn: 67064
 2009-03-17 00:38:24 +00:00
Dale Johannesen
7c23238784 Fix -strip-debug-declare to work when there are 
llvm.global.variable's but no llvm.declare's.

llvm-svn: 66977
 2009-03-13 22:59:47 +00:00
Evan Cheng
cda58e565f Fix PR3784: If the source of a phi comes from a bb ended with an invoke, make sure the copy is inserted before the try range (unless it's used as an input to the invoke, then insert it after the last use), not at the end of the bb. 
Also re-apply r66140 which was disabled as a workaround.

llvm-svn: 66976
 2009-03-13 22:59:14 +00:00
Bill Wendling
96e37540a0 Revert r66920. It was causing failures in the self-hosting buildbot (in release 
mode).

Running /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/dg.exp ...
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/crash-narrowfunctiontest.ll
Failed with signal(SIGBUS) at line 1
while running: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/crash-narrowfunctiontest.ll -bugpoint-crashcalls -silence-passes > /dev/null
0   bugpoint          0x0035dd25 llvm::sys::SetInterruptFunction(void (*)()) + 85
1   bugpoint          0x0035e382 llvm::sys::RemoveFileOnSignal(llvm::sys::Path const&, std::string*) + 706
2   libSystem.B.dylib 0x92f112bb _sigtramp + 43
3   libSystem.B.dylib 0xffffffff _sigtramp + 1829694831
4   bugpoint          0x00021d1c main + 92
5   bugpoint          0x00002106 start + 54
6   bugpoint          0x00000004 start + 18446744073709543220
Stack dump:
0.    Program arguments: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/crash-narrowfunctiontest.ll -bugpoint-crashcalls -silence-passes 

FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/misopt-basictest.ll
Failed with signal(SIGBUS) at line 1
while running: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/misopt-basictest.ll -dce -bugpoint-deletecalls -simplifycfg -silence-passes
0   bugpoint          0x0035dd25 llvm::sys::SetInterruptFunction(void (*)()) + 85
1   bugpoint          0x0035e382 llvm::sys::RemoveFileOnSignal(llvm::sys::Path const&, std::string*) + 706
2   libSystem.B.dylib 0x92f112bb _sigtramp + 43
3   libSystem.B.dylib 0xffffffff _sigtramp + 1829694831
4   bugpoint          0x00021d1c main + 92
5   bugpoint          0x00002106 start + 54
6   bugpoint          0x00000006 start + 18446744073709543222
Stack dump:
0.    Program arguments: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/misopt-basictest.ll -dce -bugpoint-deletecalls -simplifycfg -silence-passes 

FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/remove_arguments_test.ll
Failed with signal(SIGBUS) at line 1
while running: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/remove_arguments_test.ll  -bugpoint-crashcalls -silence-passes
0   bugpoint          0x0035dd25 llvm::sys::SetInterruptFunction(void (*)()) + 85
1   bugpoint          0x0035e382 llvm::sys::RemoveFileOnSignal(llvm::sys::Path const&, std::string*) + 706
2   libSystem.B.dylib 0x92f112bb _sigtramp + 43
3   libSystem.B.dylib 0xffffffff _sigtramp + 1829694831
4   bugpoint          0x00021d1c main + 92
5   bugpoint          0x00002106 start + 54
Stack dump:
0.    Program arguments: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/remove_arguments_test.ll -bugpoint-crashcalls -silence-passes 

--- Reverse-merging (from foreign repository) r66920 into '.':
U    include/llvm/Support/CallSite.h
U    include/llvm/Instructions.h
U    lib/Analysis/IPA/GlobalsModRef.cpp
U    lib/Analysis/IPA/Andersens.cpp
U    lib/Bitcode/Writer/BitcodeWriter.cpp
U    lib/VMCore/Instructions.cpp
U    lib/VMCore/Verifier.cpp
U    lib/VMCore/AsmWriter.cpp
U    lib/Transforms/Utils/LowerInvoke.cpp
U    lib/Transforms/Scalar/SimplifyCFGPass.cpp
U    lib/Transforms/IPO/PruneEH.cpp
U    lib/Transforms/IPO/DeadArgumentElimination.cpp

llvm-svn: 66953
 2009-03-13 21:15:59 +00:00
Dale Johannesen
a4bb3e6d14 One more place where debug info affects codegen. 
llvm-svn: 66930
 2009-03-13 19:23:20 +00:00
Gabor Greif
6a76677e1b Second installment of "BasicBlock operands to the back" 
changes.

For InvokeInst now all arguments begin at op_begin().
The Callee, Cont and Fail are now faster to get by
access relative to op_end().

This patch introduces some temporary uglyness in CallSite.
Next I'll bring CallInst up to a similar scheme and then
the uglyness will magically vanish.

This patch also exposes all the reliance of the libraries
on InvokeInst's operand ordering. I am thinking of taking
care of that too.

llvm-svn: 66920
 2009-03-13 18:27:29 +00:00
Bill Wendling
5499163a0a Oops...I committed too much. 
llvm-svn: 66867
 2009-03-13 04:39:26 +00:00
Bill Wendling
02a239b837 Temporarily XFAIL this test. 
llvm-svn: 66866
 2009-03-13 04:37:11 +00:00
Dale Johannesen
3edb15a6c7 Fix one more place where debug info affected 
codegen (speculative execution).

llvm-svn: 66859
 2009-03-13 01:05:24 +00:00