rewrite-includes: Rewrite __has_include(_next) to get rid of a host dependency.
This broke e.g. compiling a crash report from a glibc system on Darwin. Sadly,
the implementation had to game the lexer a lot as we're not using a real
preprocessor here. It also doesn't handle special cases like arbitrary macros in
__has_include, but since this macro isn't common outside of clang's headers we
can get away with that.
Fixes PR14422.
Differential Revision: http://llvm-reviews.chandlerc.com/D594
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179616 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Frontend/rewrite-includes.c b/test/Frontend/rewrite-includes.c
index 546a2c4..bf330a6 100644
--- a/test/Frontend/rewrite-includes.c
+++ b/test/Frontend/rewrite-includes.c
@@ -18,6 +18,7 @@
continues */
#include "rewrite-includes7.h"
#include "rewrite-includes7.h"
+#include "rewrite-includes8.h"
// ENDCOMPARE
// CHECK: {{^}}// STARTCOMPARE{{$}}
// CHECK-NEXT: {{^}}#define A(a,b) a ## b{{$}}
@@ -88,6 +89,16 @@
// CHECK-NEXT: {{^}}#include "rewrite-includes7.h"{{$}}
// CHECK-NEXT: {{^}}#endif /* expanded by -frewrite-includes */{{$}}
// CHECK-NEXT: {{^}}# 21 "{{.*}}rewrite-includes.c"{{$}}
+// CHECK-NEXT: {{^}}#if 0 /* expanded by -frewrite-includes */{{$}}
+// CHECK-NEXT: {{^}}#include "rewrite-includes8.h"{{$}}
+// CHECK-NEXT: {{^}}#endif /* expanded by -frewrite-includes */{{$}}
+// CHECK-NEXT: {{^}}# 1 "{{.*[/\\]Inputs[/\\]}}rewrite-includes8.h" 1{{$}}
+// CHECK-NEXT: {{^}}#if (1)/*__has_include_next(<rewrite-includes8.h>)*/{{$}}
+// CHECK-NEXT: {{^}}#elif (0)/*__has_include(<rewrite-includes8.hfail>)*/{{$}}
+// CHECK-NEXT: {{^}}#endif{{$}}
+// CHECK-NEXT: {{^}}#if !(1)/*__has_include("rewrite-includes8.h")*/{{$}}
+// CHECK-NEXT: {{^}}#endif{{$}}
+// CHECK-NEXT: {{^}}# 22 "{{.*}}rewrite-includes.c" 2{{$}}
// CHECK-NEXT: {{^}}// ENDCOMPARE{{$}}
// CHECKNL: {{^}}// STARTCOMPARE{{$}}
@@ -142,4 +153,12 @@
// CHECKNL-NEXT: {{^}}#if 0 /* expanded by -frewrite-includes */{{$}}
// CHECKNL-NEXT: {{^}}#include "rewrite-includes7.h"{{$}}
// CHECKNL-NEXT: {{^}}#endif /* expanded by -frewrite-includes */{{$}}
+// CHECKNL-NEXT: {{^}}#if 0 /* expanded by -frewrite-includes */{{$}}
+// CHECKNL-NEXT: {{^}}#include "rewrite-includes8.h"{{$}}
+// CHECKNL-NEXT: {{^}}#endif /* expanded by -frewrite-includes */{{$}}
+// CHECKNL-NEXT: {{^}}#if (1)/*__has_include_next(<rewrite-includes8.h>)*/{{$}}
+// CHECKNL-NEXT: {{^}}#elif (0)/*__has_include(<rewrite-includes8.hfail>)*/{{$}}
+// CHECKNL-NEXT: {{^}}#endif{{$}}
+// CHECKNL-NEXT: {{^}}#if !(1)/*__has_include("rewrite-includes8.h")*/{{$}}
+// CHECKNL-NEXT: {{^}}#endif{{$}}
// CHECKNL-NEXT: {{^}}// ENDCOMPARE{{$}}