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authorAndrea Di Biagio <Andrea_DiBiagio@sn.scee.net>2019-06-10 12:50:08 +0000
committerAndrea Di Biagio <Andrea_DiBiagio@sn.scee.net>2019-06-10 12:50:08 +0000
commit47db08dbb19cc326e7002b0068237e1b92bd529e (patch)
tree3522e837fca42a0ee61bc1d17a21261d9125ad0c /llvm/lib
parentb67333f283c03a065a92241054c630d651b181ad (diff)
downloadbcm5719-llvm-47db08dbb19cc326e7002b0068237e1b92bd529e.tar.gz
bcm5719-llvm-47db08dbb19cc326e7002b0068237e1b92bd529e.zip
[MCA] Further refactor the bottleneck analysis view. NFCI.
llvm-svn: 362933
Diffstat (limited to 'llvm/lib')
-rw-r--r--llvm/lib/MCA/HardwareUnits/Scheduler.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/MCA/HardwareUnits/Scheduler.cpp b/llvm/lib/MCA/HardwareUnits/Scheduler.cpp
index c7091203595..0f0f2ffb832 100644
--- a/llvm/lib/MCA/HardwareUnits/Scheduler.cpp
+++ b/llvm/lib/MCA/HardwareUnits/Scheduler.cpp
@@ -198,7 +198,8 @@ InstRef Scheduler::select() {
Strategy->compare(IR, ReadySet[QueueIndex])) {
Instruction &IS = *IR.getInstruction();
uint64_t BusyResourceMask = Resources->checkAvailability(IS.getDesc());
- IS.setCriticalResourceMask(BusyResourceMask);
+ if (BusyResourceMask)
+ IS.setCriticalResourceMask(BusyResourceMask);
BusyResourceUnits |= BusyResourceMask;
if (!BusyResourceMask)
QueueIndex = I;
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