[llvm-branch-commits] [llvm] [BOLT] Gadget scanner: detect signing oracles (PR #134146)

[Kristof Beyls via llvm-branch-commits]

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@@ -307,8 +340,10 @@ class SrcSafetyAnalysis {
 
   SrcState createEntryState() {
     SrcState S(NumRegs, RegsToTrackInstsFor.getNumTrackedRegisters());
-    for (MCPhysReg Reg : BC.MIB->getTrustedLiveInRegs())
-      S.SafeToDerefRegs |= BC.MIB->getAliases(Reg, /*OnlySmaller=*/true);
+    for (MCPhysReg Reg : BC.MIB->getTrustedLiveInRegs()) {
+      S.TrustedRegs |= BC.MIB->getAliases(Reg, /*OnlySmaller=*/true);
+      S.SafeToDerefRegs = S.TrustedRegs;
+    }
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kbeyls wrote:

Nit pick: I guess
`S.SafeToDerefRegs = S.TrustedRegs` could be move to after the loop, rather 
than inside the loop?

https://github.com/llvm/llvm-project/pull/134146
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