[PATCH] D58374: [Clang][NewPM] Don't bail out if the target machine is empty

[Petr Hosek via Phabricator via cfe-commits]

phosek updated this revision to Diff 188999.
phosek marked an inline comment as done.
Herald added a subscriber: dschuff.

Repository:
  rC Clang

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D58374/new/

https://reviews.llvm.org/D58374

Files:
  clang/lib/CodeGen/BackendUtil.cpp
  clang/test/CodeGen/spir-half-type.cpp
  clang/test/Driver/le32-unknown-nacl.cpp


Index: clang/test/Driver/le32-unknown-nacl.cpp
===================================================================
--- clang/test/Driver/le32-unknown-nacl.cpp
+++ clang/test/Driver/le32-unknown-nacl.cpp
@@ -1,5 +1,6 @@
 // RUN: %clang -target le32-unknown-nacl -### %s -emit-llvm-only -c 2>&1 | FileCheck %s -check-prefix=ECHO
 // RUN: %clang -target le32-unknown-nacl %s -emit-llvm -S -c -o - | FileCheck %s
+// RUN: %clang -target le32-unknown-nacl -fexperimental-new-pass-manager %s -emit-llvm -S -c -o - | FileCheck %s
 // RUN: %clang -target le32-unknown-nacl %s -emit-llvm -S -c -pthread -o - | FileCheck %s -check-prefix=THREADS
 
 // ECHO: {{.*}} "-cc1" {{.*}}le32-unknown-nacl.c
Index: clang/test/CodeGen/spir-half-type.cpp
===================================================================
--- clang/test/CodeGen/spir-half-type.cpp
+++ clang/test/CodeGen/spir-half-type.cpp
@@ -1,5 +1,7 @@
 // RUN: %clang_cc1 -O0 -triple spir -emit-llvm %s -o - | FileCheck %s
 // RUN: %clang_cc1 -O0 -triple spir64 -emit-llvm %s -o - | FileCheck %s
+// RUN: %clang_cc1 -O0 -triple spir -fexperimental-new-pass-manager -emit-llvm %s -o - | FileCheck %s
+// RUN: %clang_cc1 -O0 -triple spir64 -fexperimental-new-pass-manager -emit-llvm %s -o - | FileCheck %s
 
 // This file tests that using the _Float16 type with the spir target will not
 // use the llvm intrinsics but instead will use the half arithmetic
Index: clang/lib/CodeGen/BackendUtil.cpp
===================================================================
--- clang/lib/CodeGen/BackendUtil.cpp
+++ clang/lib/CodeGen/BackendUtil.cpp
@@ -955,13 +955,15 @@
   TimeRegion Region(FrontendTimesIsEnabled ? &CodeGenerationTime : nullptr);
   setCommandLineOpts(CodeGenOpts);
 
-  // The new pass manager always makes a target machine available to passes
-  // during construction.
-  CreateTargetMachine(/*MustCreateTM*/ true);
-  if (!TM)
-    // This will already be diagnosed, just bail.
+  bool RequiresCodeGen = (Action != Backend_EmitNothing &&
+                          Action != Backend_EmitBC &&
+                          Action != Backend_EmitLL);
+  CreateTargetMachine(RequiresCodeGen);
+
+  if (RequiresCodeGen && !TM)
     return;
-  TheModule->setDataLayout(TM->createDataLayout());
+  if (TM)
+    TheModule->setDataLayout(TM->createDataLayout());
 
   Optional<PGOOptions> PGOOpt;
 


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