Commit Graph

72119 Commits

Author SHA1 Message Date
Rafael Espindola
7af1a59382 Don't produce a __debug_frame.
I tested both gdb on a bootstrapped clang and and the gdb testsuite on OS X (snow leopard)
and both are happy using __eh_frame.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130937 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 18:43:39 +00:00
Galina Kistanova
300c1a11c8 Many LLVM tests relies on standard output stream be in the binary mode. Which is not always the case (on Windows in particular). The patch adds a test to verify that the standard output stream is actually in the binary mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130936 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 18:40:27 +00:00
Owen Anderson
d71867a8f4 Allow FastISel of three-register-operand instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130934 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 17:59:04 +00:00
Devang Patel
d96efb83c1 If debug info for inlined function is missing then handle it gracefully.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130933 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 17:54:26 +00:00
Eli Friedman
297015913a PR9848: pandn is not commutative.
No test because I can't think of any way to write one that won't break quickly.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130932 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 17:45:31 +00:00
Jakob Stoklund Olesen
e9bd4ea5fd Add some statistics to the splitting and spilling frameworks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130931 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 17:22:53 +00:00
Eli Friedman
23d3243e62 Avoid extra vreg copies for arguments passed in registers. Specifically, this can make MachineCSE more effective in some cases (especially in small functions). PR8361 / part of rdar://problem/8259436 .
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130928 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 16:53:34 +00:00
Jakob Stoklund Olesen
d41bd043d3 Fix test to be less sensitive to coalescing.
This should unbreak llvm-gcc-i386-linux-selfhost.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130927 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 16:48:00 +00:00
Eli Friedman
6005b875b0 Small syntax cleanup; we don't need to #define constants in C++. No functionality change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130926 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 16:25:23 +00:00
Eli Friedman
5f6bf5d441 Minor correction to r130877; fixes PR9846 and hopefully the buildbot failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130925 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 16:18:11 +00:00
Hongbin Zheng
f262e16161 Minor change: Fix the typo in RegionPass.h and RegionPass.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130920 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 13:59:38 +00:00
Bill Wendling
087aad44cb Remove a flag that would set the ".eh" symbol as .globl. MachO was the only one
who used this flag, and it now emits CFI and doesn't emit this anymore. All
other targets left this flag "false".
<rdar://problem/8486371>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130918 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 06:49:15 +00:00
Mikhail Glushenkov
81937619b5 llvmc: Make 'true' and 'false' instances of a 'Bool' class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130915 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 04:25:03 +00:00
Mikhail Glushenkov
3a21c55a14 llvmc: Make it possible to provide an argument to (join).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130914 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 04:24:58 +00:00
Nick Lewycky
5409a18832 Update the gcov version used slightly, to make it stop causing modern gcov's to
crash.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130911 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 02:46:38 +00:00
Nick Lewycky
7a75a9ade8 Remove dead function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130903 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 00:17:34 +00:00
Nick Lewycky
fcf74ed5a2 When the path wasn't emitted by the frontend, discard any path on the source
filename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130897 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 00:03:30 +00:00
Jakob Stoklund Olesen
7a2718a3c1 Disable physical register coalescing by default.
Joining physregs is inherently dangerous because it uses a heuristic to avoid
creating invalid code. Linear scan had an emergency spilling mechanism to deal
with those rare cases. The new greedy allocator does not.

The greedy register allocator is much better at taking hints, so this has almost
no impact on code size and quality. The few cases where it matters show up as
unit tests that now have -join-physregs enabled explicitly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130896 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 23:59:00 +00:00
Devang Patel
0f18d97fd1 Set debug loc for new instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130895 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 23:58:50 +00:00
Devang Patel
a922ba7edc Set debug location for new PHI nodes created in exit block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130894 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 23:58:22 +00:00
Jakob Stoklund Olesen
49b2803ec2 Prepare remaining tests for -join-physreg going away.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130893 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 23:54:59 +00:00
Jakob Stoklund Olesen
4f5de9bb40 Fix X86RegisterInfo::getMatchingSuperRegClass for sub_8bit_hi.
It is OK for B to be any GR8_ABCD_H superclass, the returned register class
doesn't have to map surjectively onto B.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130892 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 23:54:54 +00:00
Jakob Stoklund Olesen
61396aebee Fix a batch of x86 tests to be coalescer independent.
Most of these tests require a single mov instruction that can come either before
or after a 2-addr instruction. -join-physregs changes the behavior, but the
results are equivalent.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130891 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 23:54:51 +00:00
Bill Wendling
3f58a513e1 Document the automatic alias printing of InstAliases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130889 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 23:40:14 +00:00
Ted Kremenek
2169ad8c60 Add explicit 'unregister' method to CrashRecoveryConextCleanupRegistrar.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130885 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 23:26:59 +00:00
Dan Gohman
becfb889aa Give this test an explicit register allocator, so that it can work even if
the default register allocator is changed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130883 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 23:14:02 +00:00
Bill Wendling
d29052bf26 SjLj EH could produce a machine basic block that legitimately has more than one
landing pad as its successor.

SjLj exception handling jumps to the correct landing pad via a switch statement
that's generated right before code-gen. Loosen the constraint in the machine
instruction verifier to allow for this. Note, this isn't the most rigorous check
since we cannot determine where that switch statement came from. But it's
marginally better than turning this check off when SjLj exceptions are used.
<rdar://problem/9187612>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130881 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 22:54:05 +00:00
Devang Patel
95a7de6b91 Preserve line number information while threading jumps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130880 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 22:48:19 +00:00
Nick Lewycky
5e436b3b0e Create the parent directories to place the .gcda files in if they don't exist.
That's kinda weird because the .gcno files are supposed to already be there,
but libgcov does this and somehow Google has managed to depend on it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130879 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 22:34:29 +00:00
Eli Friedman
baf717a08a Re-commit r130862 with a minor change to avoid an iterator running off the edge in some cases.
Original message:

Teach MachineCSE how to do simple cross-block CSE involving physregs.  This allows, for example, eliminating duplicate cmpl's on x86. Part of rdar://problem/8259436 .



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130877 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 22:10:36 +00:00
Devang Patel
b90584ae78 Preserve line number info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130876 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 21:58:58 +00:00
Galina Kistanova
ff4f6eaf4e This test fails on ARM. The test shouldn't explicitly specify alignment (and alignment 4 is wrong) and requires hard-float.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130875 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 21:57:44 +00:00
Devang Patel
6a0ce750f7 If builder is initialized using an instruction as insertion point, then use the instruction's debug location as current debug location.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130874 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 21:57:22 +00:00
Devang Patel
af35841f2e preserve line number info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130869 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 21:37:05 +00:00
Eli Friedman
24d4c9911e Back out r130862; it appears to be breaking bootstrap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130867 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 20:48:42 +00:00
Eli Friedman
49cec1d818 Teach MachineCSE how to do simple cross-block CSE involving physregs. This allows, for example, eliminating duplicate cmpl's on x86. Part of rdar://problem/8259436 .
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130862 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 19:54:24 +00:00
Duncan Sands
2abb82b1d3 Remove an unused variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130860 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 19:13:01 +00:00
Jakob Stoklund Olesen
96169b189c Fix more register and coalescing dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130859 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 19:02:11 +00:00
Jakob Stoklund Olesen
28e104bcb0 Explicitly request physreg coalesing for a bunch of Thumb2 unit tests.
These tests all follow the same pattern:

	mov	r2, r0
	movs	r0, #0
	$CMP	r2, r1
	it	eq
	moveq	r0, #1
	bx	lr

The first 'mov' can be eliminated by rematerializing 'movs r0, #0' below the
test instruction:

	$CMP	r0, r1
	mov.w	r0, #0
	it	eq
	moveq	r0, #1
	bx	lr

So far, only physreg coalescing can do that. The register allocators won't yet
split live ranges just to eliminate copies. They can learn, but this particular
problem is not likely to show up in real code. It only appears because r0 is
used for both the function argument and return value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130858 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 19:02:07 +00:00
Jakob Stoklund Olesen
21f7902a89 Implement SystemZRegisterInfo::getMatchingSuperRegClass to enable cross-class joins.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130857 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 19:02:04 +00:00
Jakob Stoklund Olesen
14c76fed2d FileCheckize and break dependence on coalescing order.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130856 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 19:02:01 +00:00
Jakob Stoklund Olesen
f695b3ad62 Explicitly request -join-physregs for some tests that depend on it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130855 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 19:01:59 +00:00
Devang Patel
64915dec28 Do not emit location expression size twice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130854 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 19:00:57 +00:00
Rafael Espindola
6af0b762db Fix cmake build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130850 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 18:46:56 +00:00
Akira Hatanaka
921c58b001 Remove LLVM IR metadata in test case committed in r130847.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130849 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 18:28:36 +00:00
Akira Hatanaka
6b7588e6c4 Prevent instructions using $gp from being placed between a jalr and the instruction that restores the clobbered $gp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130847 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 17:54:27 +00:00
Rafael Espindola
597a7664e1 Producing a DW_FORM_addr for DW_AT_stmt_list is probably correct, but
it is both inefficient and unexpected by dwarfdump. Change to
a DW_FORM_data4.

While in here, change the predicate name to reflect that the position
is not really absolute (it is an offset), just that the linker needs a
relocation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130846 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 17:44:06 +00:00
Jakob Stoklund Olesen
9126601770 Rename -disable-physical-join to -join-physregs and invert it.
Physreg joining is still on by default, but I will turn it off shortly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130844 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 16:45:05 +00:00
Devang Patel
a938dd0dc9 Tighten up check for empty (i.e. no meaningful debug info) module. This fixes dwarf-die2.c test case from gcc test suite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130842 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 16:34:02 +00:00
Duncan Sands
8140ad32ce Add variations on: max(x,y) >= min(x,z) folds to true. This isn't that common,
but according to my super-optimizer there are only two missed simplifications
of -instsimplify kind when compiling bzip2, and this is one of them.  It amuses
me to have bzip2 be perfectly optimized as far as instsimplify goes!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130840 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 16:05:05 +00:00