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llvm-project/clang/test/Frontend/optimization-remark.c

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Add support for optimization reports. Summary: This patch adds a new flag -Rpass=. The flag indicates the name of the optimization pass that should emit remarks stating when it made a transformation to the code. This implements the design I proposed in: https://docs.google.com/document/d/1FYUatSjZZO-zmFBxjOiuOzAy9mhHA8hqdvklZv68WuQ/edit?usp=sharing Other changes: - Add DiagnosticIDs::isRemark(). Use it in printDiagnosticOptions to print "-R" instead of "-W" in the diagnostic message. - In BackendConsumer::OptimizationRemarkHandler, get a SourceLocation object out of the file name, line and column number. Use that location in the call to Diags.Report(). - When -Rpass is used without debug info a note is emitted alerting the user that they need to use -gline-tables-only -gcolumn-info to get this information. CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D3226 llvm-svn: 206401
2014-04-17 00:54:24 +08:00
// This file tests the -Rpass= flag with the inliner. The test is
// designed to always trigger the inliner, so it should be independent
// of the optimization level.
Fix check failure on hexagon targets. This test was failing because there is no assembler for hexagon-elf on this buildbot: http://lab.llvm.org:8011/builders/clang-hexagon-elf/builds/10470 Fixed by adding -S to the driver invocation. llvm-svn: 206412
2014-04-17 03:02:35 +08:00
// RUN: %clang -c %s -Rpass=inline -O0 -gline-tables-only -S -o /dev/null 2> %t.err
Add support for optimization reports. Summary: This patch adds a new flag -Rpass=. The flag indicates the name of the optimization pass that should emit remarks stating when it made a transformation to the code. This implements the design I proposed in: https://docs.google.com/document/d/1FYUatSjZZO-zmFBxjOiuOzAy9mhHA8hqdvklZv68WuQ/edit?usp=sharing Other changes: - Add DiagnosticIDs::isRemark(). Use it in printDiagnosticOptions to print "-R" instead of "-W" in the diagnostic message. - In BackendConsumer::OptimizationRemarkHandler, get a SourceLocation object out of the file name, line and column number. Use that location in the call to Diags.Report(). - When -Rpass is used without debug info a note is emitted alerting the user that they need to use -gline-tables-only -gcolumn-info to get this information. CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D3226 llvm-svn: 206401
2014-04-17 00:54:24 +08:00
// RUN: FileCheck < %t.err %s --check-prefix=INLINE
Fix check failure on hexagon targets. This test was failing because there is no assembler for hexagon-elf on this buildbot: http://lab.llvm.org:8011/builders/clang-hexagon-elf/builds/10470 Fixed by adding -S to the driver invocation. llvm-svn: 206412
2014-04-17 03:02:35 +08:00
// RUN: %clang -c %s -Rpass=inline -O0 -S -o /dev/null 2> %t.err
Add support for optimization reports. Summary: This patch adds a new flag -Rpass=. The flag indicates the name of the optimization pass that should emit remarks stating when it made a transformation to the code. This implements the design I proposed in: https://docs.google.com/document/d/1FYUatSjZZO-zmFBxjOiuOzAy9mhHA8hqdvklZv68WuQ/edit?usp=sharing Other changes: - Add DiagnosticIDs::isRemark(). Use it in printDiagnosticOptions to print "-R" instead of "-W" in the diagnostic message. - In BackendConsumer::OptimizationRemarkHandler, get a SourceLocation object out of the file name, line and column number. Use that location in the call to Diags.Report(). - When -Rpass is used without debug info a note is emitted alerting the user that they need to use -gline-tables-only -gcolumn-info to get this information. CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D3226 llvm-svn: 206401
2014-04-17 00:54:24 +08:00
// RUN: FileCheck < %t.err %s --check-prefix=INLINE-NO-LOC
int foo(int x, int y) __attribute__((always_inline));
int foo(int x, int y) { return x + y; }
int bar(int j) { return foo(j, j - 2); }
// INLINE: remark: foo inlined into bar [-Rpass]
// INLINE-NO-LOC: {{^remark: foo inlined into bar}}
// INLINE-NO-LOC: note: use -gline-tables-only -gcolumn-info to track