From 5a0a2e648c267d99111b21482ca709f580e9ccc2 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne <peter@pcc.me.uk>
Date: Tue, 29 Nov 2016 20:43:47 +0000
Subject: Bitcode: Introduce BitcodeWriter interface.

This interface allows clients to write multiple modules to a single
bitcode file. Also introduce the llvm-cat utility which can be used
to create a bitcode file containing multiple modules.

Differential Revision: https://reviews.llvm.org/D26179

llvm-svn: 288195
---
 llvm/test/Bitcode/Inputs/multi-module.ll |  3 +++
 llvm/test/Bitcode/multi-module.ll        | 39 ++++++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 llvm/test/Bitcode/Inputs/multi-module.ll
 create mode 100644 llvm/test/Bitcode/multi-module.ll

(limited to 'llvm/test/Bitcode')

diff --git a/llvm/test/Bitcode/Inputs/multi-module.ll b/llvm/test/Bitcode/Inputs/multi-module.ll
new file mode 100644
index 00000000000..e4e9b82be64
--- /dev/null
+++ b/llvm/test/Bitcode/Inputs/multi-module.ll
@@ -0,0 +1,3 @@
+define void @f2() {
+  ret void
+}
diff --git a/llvm/test/Bitcode/multi-module.ll b/llvm/test/Bitcode/multi-module.ll
new file mode 100644
index 00000000000..a6c25c7cdbe
--- /dev/null
+++ b/llvm/test/Bitcode/multi-module.ll
@@ -0,0 +1,39 @@
+; RUN: llvm-cat -o %t %s %S/Inputs/multi-module.ll
+; RUN: not llvm-dis -o - %t 2>&1 | FileCheck --check-prefix=ERROR %s
+; ERROR: Expected a single module
+
+; FIXME: Introduce a tool for extracting modules from bitcode and use it here.
+; For now we can at least check that the bitcode contains multiple modules.
+; RUN: llvm-bcanalyzer -dump %t | FileCheck --check-prefix=BCA %s
+
+; RUN: llvm-as -o %t1 %s
+; RUN: llvm-as -o %t2 %S/Inputs/multi-module.ll
+; RUN: llvm-cat -o %t %t1 %t2
+; RUN: not llvm-dis -o - %t 2>&1 | FileCheck --check-prefix=ERROR %s
+; RUN: llvm-bcanalyzer -dump %t | FileCheck --check-prefix=BCA %s
+
+; RUN: llvm-cat -b -o %t %t1 %t2
+; RUN: not llvm-dis -o - %t 2>&1 | FileCheck --check-prefix=ERROR %s
+; RUN: llvm-bcanalyzer -dump %t | FileCheck --check-prefix=BCA %s
+
+; RUN: llvm-cat -b -o %t3 %t %t
+; RUN: not llvm-dis -o - %t3 2>&1 | FileCheck --check-prefix=ERROR %s
+; RUN: llvm-bcanalyzer -dump %t3 | FileCheck --check-prefix=BCA4 %s
+
+; BCA: <IDENTIFICATION_BLOCK
+; BCA: <MODULE_BLOCK
+; BCA: <IDENTIFICATION_BLOCK
+; BCA: <MODULE_BLOCK
+
+; BCA4: <IDENTIFICATION_BLOCK
+; BCA4: <MODULE_BLOCK
+; BCA4: <IDENTIFICATION_BLOCK
+; BCA4: <MODULE_BLOCK
+; BCA4: <IDENTIFICATION_BLOCK
+; BCA4: <MODULE_BLOCK
+; BCA4: <IDENTIFICATION_BLOCK
+; BCA4: <MODULE_BLOCK
+
+define void @f1() {
+  ret void
+}
-- 
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