[PATCH] D21542: CodeGen: Replace test/CodeGen/thinlto_backend.c with a functional test.

[Peter Collingbourne via cfe-commits]

pcc created this revision.
pcc added a reviewer: tejohnson.
pcc added a subscriber: cfe-commits.
Herald added a subscriber: mehdi_amini.

This new test tests that functions are capable of being imported, rather than
that the import pass is run. This new test is compatible with the approach
being developed in D20268 which runs the importer on its own rather than in
a pass.

http://reviews.llvm.org/D21542

Files:
  test/CodeGen/Inputs/thinlto_backend.ll
  test/CodeGen/thinlto_backend.c
  test/CodeGen/thinlto_backend.ll

Index: test/CodeGen/thinlto_backend.ll
===================================================================
--- /dev/null
+++ test/CodeGen/thinlto_backend.ll
@@ -0,0 +1,27 @@
+; RUN: opt -module-summary -o %t1.o %s
+; RUN: opt -module-summary -o %t2.o %S/Inputs/thinlto_backend.ll
+; RUN: llvm-lto -thinlto -o %t %t1.o %t2.o
+
+; Ensure clang -cc1 give expected error for incorrect input type
+; RUN: not %clang_cc1 -O2 -o %t1.o -x c %s -c -fthinlto-index=%t.thinlto.bc 2>&1 | FileCheck %s -check-prefix=CHECK-WARNING
+; CHECK-WARNING: error: invalid argument '-fthinlto-index={{.*}}' only allowed with '-x ir'
+
+; Ensure we get expected error for missing index file
+; RUN: %clang -O2 -o %t3.o -x ir %t1.o -c -fthinlto-index=bad.thinlto.bc 2>&1 | FileCheck %s -check-prefix=CHECK-ERROR
+; CHECK-ERROR: Error loading index file 'bad.thinlto.bc'
+
+; Ensure f2 was imported
+; RUN: %clang -O2 -o %t3.o -x ir %t1.o -c -fthinlto-index=%t.thinlto.bc
+; RUN: llvm-nm %t3.o | FileCheck --check-prefix=CHECK-OBJ %s
+; CHECK-OBJ: T f1
+; CHECK-OBJ-NOT: U f2
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+declare void @f2()
+
+define void @f1() {
+  call void @f2()
+  ret void
+}
Index: test/CodeGen/thinlto_backend.c
===================================================================
--- test/CodeGen/thinlto_backend.c
+++ /dev/null
@@ -1,14 +0,0 @@
-// RUN: %clang -O2 %s -flto=thin -c -o %t.o
-// RUN: llvm-lto -thinlto -o %t %t.o
-
-// Ensure clang -cc1 give expected error for incorrect input type
-// RUN: not %clang_cc1 -O2 -o %t1.o %s -c -fthinlto-index=%t.thinlto.bc 2>&1 | FileCheck %s -check-prefix=CHECK-WARNING
-// CHECK-WARNING: error: invalid argument '-fthinlto-index={{.*}}' only allowed with '-x ir'
-
-// Ensure we get expected error for missing index file
-// RUN: %clang -O2 -o %t1.o -x ir %t.o -c -fthinlto-index=bad.thinlto.bc 2>&1 | FileCheck %s -check-prefix=CHECK-ERROR
-// CHECK-ERROR: Error loading index file 'bad.thinlto.bc'
-
-// Ensure Function Importing pass added
-// RUN: %clang -O2 -o %t1.o -x ir %t.o -c -fthinlto-index=%t.thinlto.bc -mllvm -debug-pass=Structure 2>&1 | FileCheck %s -check-prefix=CHECK-PASS
-// CHECK-PASS: Function Importing
Index: test/CodeGen/Inputs/thinlto_backend.ll
===================================================================
--- /dev/null
+++ test/CodeGen/Inputs/thinlto_backend.ll
@@ -0,0 +1,6 @@
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+define void @f2() {
+  ret void
+}


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