[PATCH] D16490: [CUDA] Die gracefully when trying to output an LLVM alias.

[Justin Lebar via llvm-commits]

jlebar updated this revision to Diff 45804.
jlebar added a comment.

Die during doInitialization instead of doFinalization.


http://reviews.llvm.org/D16490

Files:
  lib/Target/NVPTX/NVPTXAsmPrinter.cpp
  test/CodeGen/NVPTX/alias.ll

Index: test/CodeGen/NVPTX/alias.ll
===================================================================
--- /dev/null
+++ test/CodeGen/NVPTX/alias.ll
@@ -0,0 +1,7 @@
+; RUN: not llc < %s -march=nvptx -mcpu=sm_20 2>&1 | FileCheck %s
+
+; Check that llc dies gracefully when given an alias.
+
+define i32 @a() { ret i32 0 }
+; CHECK: ERROR: Module has aliases
+ at b = internal alias i32 (), i32 ()* @a
Index: lib/Target/NVPTX/NVPTXAsmPrinter.cpp
===================================================================
--- lib/Target/NVPTX/NVPTXAsmPrinter.cpp
+++ lib/Target/NVPTX/NVPTXAsmPrinter.cpp
@@ -812,6 +812,11 @@
   const NVPTXTargetMachine &NTM = static_cast<const NVPTXTargetMachine &>(TM);
   const NVPTXSubtarget STI(TT, CPU, FS, NTM);
 
+  if (M.alias_size()) {
+    report_fatal_error("Module has aliases, which NVPTX does not support.");
+    return true; // error
+  }
+
   SmallString<128> Str1;
   raw_svector_ostream OS1(Str1);
 


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