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[AMDGPU][Waitcnt] fix "comparison of integers of different signs" build error 

Build error on Android; reported by and fix provided by (thanks) by Mauro Rossi <issor.oruam@gmail.com>

Fixes the following building error:

external/llvm/lib/Target/AMDGPU/SIInsertWaitcnts.cpp:1903:61:
error: comparison of integers of different signs:
'typename iterator_traits<__wrap_iter<MachineBasicBlock **> >::difference_type'
(aka 'int') and 'unsigned int' [-Werror,-Wsign-compare]
                      BlockWaitcntProcessedSet.end(), &MBB) < Count)) {
                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~
1 error generated.

Differential Revision: https://reviews.llvm.org/D49089

llvm-svn: 336588
This commit is contained in:
Mark Searles 2018-07-09 19:28:14 +00:00
parent 40cb6cab56
commit 5bfd8d8991
1 changed files with 1 additions and 1 deletions
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2
llvm/lib/Target/AMDGPU/SIInsertWaitcnts.cpp
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@ -1904,7 +1904,7 @@ bool SIInsertWaitcnts::runOnMachineFunction(MachineFunction &MF) {
// If the loop has multiple back-edges, and so more than one "bottom"
// basic block, we have to guarantee a re-walk over every blocks.
if ((std::count(BlockWaitcntProcessedSet.begin(),
BlockWaitcntProcessedSet.end(), &MBB) < Count)) {
BlockWaitcntProcessedSet.end(), &MBB) < (int)Count)) {
BlockWaitcntBracketsMap[&MBB]->setRevisitLoop(true);
LLVM_DEBUG(dbgs() << "set-revisit1: Block"
<< ContainingLoop->getHeader()->getNumber() << '\n';);