[PATCH] D21395: Fix for Bug 28144

[Vivek Pandya via llvm-commits]

vivekvpandya added inline comments.

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Comment at: lib/CodeGen/RegUsageInfoCollector.cpp:119
@@ +118,3 @@
+
+  for (MachineBasicBlock &MBB : MF) {
+    for (MachineInstr &MI : MBB) {
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I have added this code after marking callee saved registers as preserved because if any callee inside the MF body is using the register , which has marked safe above then that will be correct register usage information.


http://reviews.llvm.org/D21395