324d1bb35a
`createExpansionLocImpl` has an assert that checks if we ran out of source locations. We have observed this happening on real code and in release builds the assertion does not fire and the compiler just keeps running indefinitely without giving any indication that something went wrong. Diagnose this problem and reliably crash to make sure the problem is easy to detect. I have also tried: - returning invalid source locations, - reporting sloc address space usage on error. Both caused the compiler to run indefinitely. It would be nice to dig further why that happens, but until then crashing seems like a better alternative.
39 lines
1.6 KiB
C
39 lines
1.6 KiB
C
// RUN: not %clang %s -S -o - 2>&1 | FileCheck %s
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// CHECK: In file included from {{.*}}SourceLocationsOverflow.c
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// CHECK-NEXT: inc1.h{{.*}}: fatal error: sorry, the translation unit is too large for Clang to process: ran out of source locations
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// CHECK-NEXT: #include "inc2.h"
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// CHECK-NEXT: ^
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// CHECK-NEXT: note: 214{{.......}}B in local locations, 0B in locations loaded from AST files, for a total of 214{{.......}}B (99% of available space)
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// CHECK-NEXT: {{.*}}inc2.h:1:1: note: file entered 214{{..}} times using 214{{.......}}B of space
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// CHECK-NEXT: /*.................................................................................................
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// CHECK-NEXT: ^
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// CHECK-NEXT: {{.*}}inc1.h:1:1: note: file entered 15 times using 39{{....}}B of space
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// CHECK-NEXT: #include "inc2.h"
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// CHECK-NEXT: ^
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// CHECK-NEXT: <built-in>:1:1: note: file entered {{.*}} times using {{.*}}B of space
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// CHECK-NEXT: # {{.*}}
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// CHECK-NEXT: ^
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// CHECK-NEXT: {{.*}}SourceLocationsOverflow.c:1:1: note: file entered 1 time using {{.*}}B of space
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// CHECK-NEXT: // RUN: not %clang %s -S -o - 2>&1 | FileCheck %s
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// CHECK-NEXT: ^
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// CHECK-NEXT: 1 error generated.
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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#include "Inputs/inc1.h"
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