[llvm] r342742 - AArch64FastISel: Abort if we failed to select operand of intrinsic

[Matthias Braun via llvm-commits]

Author: matze
Date: Fri Sep 21 08:47:41 2018
New Revision: 342742

URL: http://llvm.org/viewvc/llvm-project?rev=342742&view=rev
Log:
AArch64FastISel: Abort if we failed to select operand of intrinsic

rdar://44642447

Differential Revision: https://reviews.llvm.org/D52335

Modified:
    llvm/trunk/lib/Target/AArch64/AArch64FastISel.cpp

Modified: llvm/trunk/lib/Target/AArch64/AArch64FastISel.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64FastISel.cpp?rev=342742&r1=342741&r2=342742&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AArch64FastISel.cpp (original)
+++ llvm/trunk/lib/Target/AArch64/AArch64FastISel.cpp Fri Sep 21 08:47:41 2018
@@ -3742,6 +3742,9 @@ bool AArch64FastISel::fastLowerIntrinsic
               TII.get(TargetOpcode::COPY), ResultReg1).addReg(MulReg);
     }
 
+    if (!ResultReg1)
+      return false;
+
     ResultReg2 = fastEmitInst_rri(AArch64::CSINCWr, &AArch64::GPR32RegClass,
                                   AArch64::WZR, /*IsKill=*/true, AArch64::WZR,
                                   /*IsKill=*/true, getInvertedCondCode(CC));