mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-29 19:26:05 +00:00
95a2a7f2a1
The lexer sets the end location of macro arguments incorrectly *if*, while merging consecutive args to fit into a single SLocEntry, it finds args which come from different macro files. Fix the issue by using separate SLocEntries in this situation. This fixes a code coverage crasher (rdar://problem/26181005). Because the lexer reported end locations for certain macro args incorrectly, we would generate bogus coverage mappings with negative line offsets. Reviewed-by: akyrtzi Differential Revision: http://reviews.llvm.org/D20401 llvm-svn: 270160
14 lines
529 B
C
14 lines
529 B
C
// Assorted macros to help test #include behavior across file boundaries.
|
|
|
|
#define helper1 0
|
|
|
|
void helper2(const char *, ...);
|
|
|
|
#define M1(a, ...) helper2(a, ##__VA_ARGS__);
|
|
|
|
// Note: M2 stresses vararg macro functions with macro arguments. The spelling
|
|
// locations of the args used to be set to the expansion site, leading to
|
|
// crashes (region LineEnd < LineStart). The regression test requires M2's line
|
|
// number to be greater than the line number containing the expansion.
|
|
#define M2(a, ...) M1(a, helper1, ##__VA_ARGS__);
|