mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-20 19:42:54 +02:00
7e4e253821
The replaceAllDbgUsesWith utility helps passes preserve debug info when replacing one value with another. This improves upon the existing insertReplacementDbgValues API by: - Updating debug intrinsics in-place, while preventing use-before-def of the replacement value. - Falling back to salvageDebugInfo when a replacement can't be made. - Moving the responsibiliy for rewriting llvm.dbg.* DIExpressions into common utility code. Along with the API change, this teaches replaceAllDbgUsesWith how to create DIExpressions for three basic integer and pointer conversions: - The no-op conversion. Applies when the values have the same width, or have bit-for-bit compatible pointer representations. - Truncation. Applies when the new value is wider than the old one. - Zero/sign extension. Applies when the new value is narrower than the old one. Testing: - check-llvm, check-clang, a stage2 `-g -O3` build of clang, regression/unit testing. - This resolves a number of mis-sized dbg.value diagnostics from Debugify. Differential Revision: https://reviews.llvm.org/D48676 llvm-svn: 336451 |
||
|---|---|---|
| .. | ||
| AggressiveInstCombine | ||
| InstCombine | ||
| Instrumentation | ||
| IPO | ||
| Scalar | ||
| Utils | ||
| Vectorize | ||
| Coroutines.h | ||
| Instrumentation.h | ||
| IPO.h | ||
| ObjCARC.h | ||
| Scalar.h | ||
| Utils.h | ||
| Vectorize.h | ||