[llvm] a970065 - [RegisterScavenging] Use a Twine in a call to report_fatal_error instead of going from std::string to c_str. NFC

[Craig Topper via llvm-commits]

Author: Craig Topper
Date: 2021-10-08T11:04:08-07:00
New Revision: a9700653abf2914e0eb4c2996df8786c456c242c

URL: https://github.com/llvm/llvm-project/commit/a9700653abf2914e0eb4c2996df8786c456c242c
DIFF: https://github.com/llvm/llvm-project/commit/a9700653abf2914e0eb4c2996df8786c456c242c.diff

LOG: [RegisterScavenging] Use a Twine in a call to report_fatal_error instead of going from std::string to c_str. NFC

The std::string was built on the line above. Might as well just
build it as a Twine in the call.

Added: 
    

Modified: 
    llvm/lib/CodeGen/RegisterScavenging.cpp

Removed: 
    


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diff  --git a/llvm/lib/CodeGen/RegisterScavenging.cpp b/llvm/lib/CodeGen/RegisterScavenging.cpp
index a55953f82f07..c0a07ec4c91d 100644
--- a/llvm/lib/CodeGen/RegisterScavenging.cpp
+++ b/llvm/lib/CodeGen/RegisterScavenging.cpp
@@ -495,10 +495,11 @@ RegScavenger::spill(Register Reg, const TargetRegisterClass &RC, int SPAdj,
     // Spill the scavenged register before \p Before.
     int FI = Scavenged[SI].FrameIndex;
     if (FI < FIB || FI >= FIE) {
-      std::string Msg = std::string("Error while trying to spill ") +
-          TRI->getName(Reg) + " from class " + TRI->getRegClassName(&RC) +
-          ": Cannot scavenge register without an emergency spill slot!";
-      report_fatal_error(Msg.c_str());
+      report_fatal_error(Twine("Error while trying to spill ") +
+                         TRI->getName(Reg) + " from class " +
+                         TRI->getRegClassName(&RC) +
+                         ": Cannot scavenge register without an emergency "
+                         "spill slot!");
     }
     TII->storeRegToStackSlot(*MBB, Before, Reg, true, FI, &RC, TRI);
     MachineBasicBlock::iterator II = std::prev(Before);