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CodeGen: Replace test/CodeGen/thinlto_backend.c with a functional test. 

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.

Differential Revision: http://reviews.llvm.org/D21542

llvm-svn: 273347
This commit is contained in:
Peter Collingbourne 2016-06-22 00:57:26 +00:00
parent d2ada2ea5d
commit 91227f2195
3 changed files with 33 additions and 14 deletions
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6
clang/test/CodeGen/Inputs/thinlto_backend.ll Normal file
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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
}

14
clang/test/CodeGen/thinlto_backend.c
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// 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

27
clang/test/CodeGen/thinlto_backend.ll Normal file
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; 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
}