[PATCH] D21395: Fix for Bug 28144 and print register preserved in comments in asm files

Mehdi AMINI via llvm-commits llvm-commits at lists.llvm.org
Wed Jun 15 14:13:23 PDT 2016

mehdi_amini added inline comments.

Comment at: lib/CodeGen/RegUsageInfoCollector.cpp:119
@@ +118,3 @@
+  for (MachineBasicBlock &MBB : MF) {
+    for (MachineInstr &MI : MBB) {
vivekvpandya wrote:
> 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.
Can you take an example? I don't make sense of it.


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