[llvm-testresults] buildbot failure in lab.llvm.org on phase1 - sanity

[llvmlab-buildmaster at lab.llvm.org]

The Buildbot has detected a new failure on builder phase1 - sanity while building llvm.
Full details are available at:
 http://lab.llvm.org:8013/builders/phase1%20-%20sanity/builds/3290

Buildbot URL: http://lab.llvm.org:8013/

Buildslave for this Build: macpro1

Build Reason: scheduler
Build Source Stamp: 214988
Blamelist: adrian,dblaikie,echristo

BUILD FAILED: failed

sincerely,
 -The Buildbot


================================================================================

CHANGES:
File: test/DebugInfo/cu-line-tables.ll
On: http://10.1.1.2/svn/llvm-project
For: llvm
At: Wed 06 Aug 2014 11:35:39
Changed By: dblaikie
Comments: DebugInfo: Fix ranges+gmlt test case to actually exercise the gmlt situation.

Originally this test case tested the specified behavior (that -gmlt
would not produce DW_AT_ranges and that when no CU DW_AT_ranges were
produced, no debug_ranges section (not even an empty list) would be
produced) but then the ranges emission code was improved not to create
ranges of a single element (instead favoring high_pc/low_pc) and so this
test case no longer exercised the -gmlt portion of the behavior.

This caused me some confusion when reading the comments and trying to
update this test case for future changes to -gmlt. I've made this test
resilient to those changes (by using the {{DW_TAG|NULL}} pattern to
block the end of the attribute search at the end of the CU's attribute
list without mandating that it must (or must not) be followed by another
tag (the future changes to -gmlt should produce no subprograms in this
CU))

Fix the test case to have two functions in distinct sections to force
the use of DW_AT_ranges.Properties: 




File: lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.cpp
On: http://10.1.1.2/svn/llvm-project
For: llvm
At: Wed 06 Aug 2014 11:55:39
Changed By: adrian
Comments: Cleanup collectChangingRegs

The handling of the epilogue is best expressed as an early exit and
there is no reason to look for register defs in DbgValue MIs.

Patch by Frederic Riss!Properties: 




File: lib/CodeGen/AsmPrinter/DbgValueHistoryCalculator.cpp
On: http://10.1.1.2/svn/llvm-project
For: llvm
At: Wed 06 Aug 2014 11:55:39
Changed By: adrian
Comments: Improve performance of calculateDbgValueHistory.

In r210492 the logic of calculateDbgValueHistory was changed to end
register variable live ranges at the end of MBB conditionally on
the fact that the register was or not clobbered by the function body.

This requires an initial scan of all the operands of the function
to collect all clobbered registers. In a second pass over all
instructions, we compare this set with the set of clobbered
registers for the current MachineInstruction. This modification
incurred a compilation time regression on some benchmarks: the
debug info emission phase takes ~10% more time.

While a small performance hit is unavoidable due to the initial
scan requirement, we can improve the situation by avoiding to
create too many temporary sets and just use lambdas to work directly
on the result of the initial scan.

Fixes <rdar://problem/17884104>

Patch by Frederic Riss!Properties: 




Files:
 include/llvm/CodeGen/CallingConvLower.h
 lib/CodeGen/CallingConvLower.cpp
 lib/Target/AArch64/AArch64CallingConvention.td
 lib/Target/AArch64/AArch64FastISel.cpp
 lib/Target/AArch64/AArch64ISelLowering.cpp
 lib/Target/ARM/ARMFastISel.cpp
 lib/Target/ARM/ARMISelLowering.cpp
 lib/Target/Hexagon/HexagonISelLowering.cpp
 lib/Target/MSP430/MSP430ISelLowering.cpp
 lib/Target/Mips/MipsCallingConv.td
 lib/Target/Mips/MipsISelLowering.cpp
 lib/Target/PowerPC/PPCCallingConv.td
 lib/Target/PowerPC/PPCFastISel.cpp
 lib/Target/PowerPC/PPCISelLowering.cpp
 lib/Target/R600/AMDGPUCallingConv.td
 lib/Target/R600/R600ISelLowering.cpp
 lib/Target/R600/SIISelLowering.cpp
 lib/Target/Sparc/SparcISelLowering.cpp
 lib/Target/SystemZ/SystemZISelLowering.cpp
 lib/Target/X86/X86CallingConv.td
 lib/Target/X86/X86FastISel.cpp
 lib/Target/X86/X86ISelLowering.cpp
 lib/Target/XCore/XCoreISelLowering.cpp
 utils/TableGen/CallingConvEmitter.cpp
On: http://10.1.1.2/svn/llvm-project
For: llvm
At: Wed 06 Aug 2014 11:55:39
Changed By: echristo
Comments: Remove the target machine from CCState. Previously it was only used
to get the subtarget and that's accessible from the MachineFunction
now. This helps clear the way for smaller changes where we getting
a subtarget will require passing in a MachineFunction/Function as
well.Properties: 




LOGS: