From b2504eaa1be0a2dea9c88da68f1cfe43c6853792 Mon Sep 17 00:00:00 2001
From: Tom Stellard <tstellar@redhat.com>
Date: Fri, 19 Oct 2018 19:14:17 +0000
Subject: [PATCH] Merging r343428:
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r343428 | ctopper | 2018-09-30 16:43:30 -0700 (Sun, 30 Sep 2018) | 3 lines
[X86] Change an llvm_unreachable to a report_fatal_error so the optimizer will stop making us reach the other report_fatal_error in this function.
There's a conditional report_fatal_error just above this llvm_unreachable. The optimizer when seeing the unreachable removes the conditional and just makes any other error trigger the existing report_fatal_error.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_70@344805 91177308-0d34-0410-b5e6-96231b3b80d8
---
lib/Target/X86/X86InstrInfo.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index 96db8b4e758..e5645236216 100644
--- a/lib/Target/X86/X86InstrInfo.cpp
+++ b/lib/Target/X86/X86InstrInfo.cpp
@@ -3109,7 +3109,7 @@ void X86InstrInfo::copyPhysReg(MachineBasicBlock &MBB,
LLVM_DEBUG(dbgs() << "Cannot copy " << RI.getName(SrcReg) << " to "
<< RI.getName(DestReg) << '\n');
- llvm_unreachable("Cannot emit physreg copy instruction");
+ report_fatal_error("Cannot emit physreg copy instruction");
}
bool X86InstrInfo::isCopyInstr(const MachineInstr &MI,
--
2.40.0