[llvm] r275221 - GlobalISel: freeze reserved regs after IRTranslator.

[Tim Northover via llvm-commits]

Author: tnorthover
Date: Tue Jul 12 17:23:42 2016
New Revision: 275221

URL: http://llvm.org/viewvc/llvm-project?rev=275221&view=rev
Log:
GlobalISel: freeze reserved regs after IRTranslator.

We can freeze the registers after the MachineFrameInfo has been configured (by
telling it about calls, inline asm, ...). This doesn't happen at all yet, but
will be part of IR translation.

Fixes -verify-machineinstrs assertion.

Modified:
    llvm/trunk/lib/CodeGen/GlobalISel/IRTranslator.cpp
    llvm/trunk/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll

Modified: llvm/trunk/lib/CodeGen/GlobalISel/IRTranslator.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/GlobalISel/IRTranslator.cpp?rev=275221&r1=275220&r2=275221&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/GlobalISel/IRTranslator.cpp (original)
+++ llvm/trunk/lib/CodeGen/GlobalISel/IRTranslator.cpp Tue Jul 12 17:23:42 2016
@@ -155,5 +155,10 @@ bool IRTranslator::runOnMachineFunction(
       }
     }
   }
+
+  // Now that the MachineFrameInfo has been configured, no further changes to
+  // the reserved registers are possible.
+  MRI->freezeReservedRegs(MF);
+
   return false;
 }

Modified: llvm/trunk/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll?rev=275221&r1=275220&r2=275221&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll (original)
+++ llvm/trunk/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll Tue Jul 12 17:23:42 2016
@@ -1,4 +1,4 @@
-; RUN: llc -O0 -stop-after=irtranslator -global-isel %s -o - 2>&1 | FileCheck %s
+; RUN: llc -O0 -stop-after=irtranslator -global-isel -verify-machineinstrs %s -o - 2>&1 | FileCheck %s
 ; REQUIRES: global-isel
 ; This file checks that the translation from llvm IR to generic MachineInstr
 ; is correct.