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XL: Drop -qalias=noansi from default C flags 

This was added without explanation by commit v2.8.2~1138 (Add initial XL
C compiler flags for safer builds, 2009-09-30).  It is not consistent
with our default C++ flags for XL and disables several optimizations, so
drop it from our default flags for C.

Suggested-by: Todd Gamblin <tgamblin@llnl.gov>
This commit is contained in:
Brad King 2015-07-02 09:20:14 -04:00
parent 3ae8e84ef5
commit a33fb493de
2 changed files with 2 additions and 4 deletions
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3
Modules/Compiler/XL-ASM.cmake
View File

@ -1,9 +1,8 @@
set(CMAKE_ASM_VERBOSE_FLAG "-V")
# -qthreaded = Ensures that all optimizations will be thread-safe
# -qalias=noansi = Turns off type-based aliasing completely (safer optimizer)
# -qhalt=e = Halt on error messages (rather than just severe errors)
set(CMAKE_ASM_FLAGS_INIT "-qthreaded -qalias=noansi -qhalt=e -qsourcetype=assembler")
set(CMAKE_ASM_FLAGS_INIT "-qthreaded -qhalt=e -qsourcetype=assembler")
set(CMAKE_ASM_FLAGS_DEBUG_INIT "-g")
set(CMAKE_ASM_FLAGS_RELEASE_INIT "-O -DNDEBUG")

3
Modules/Compiler/XL-C.cmake
View File

@ -4,6 +4,5 @@ set(CMAKE_C_FLAGS_RELEASE_INIT "${CMAKE_C_FLAGS_RELEASE_INIT} -DNDEBUG")
set(CMAKE_C_FLAGS_MINSIZEREL_INIT "${CMAKE_C_FLAGS_MINSIZEREL_INIT} -DNDEBUG")
# -qthreaded = Ensures that all optimizations will be thread-safe
# -qalias=noansi = Turns off type-based aliasing completely (safer optimizer)
# -qhalt=e = Halt on error messages (rather than just severe errors)
set(CMAKE_C_FLAGS_INIT "-qthreaded -qalias=noansi -qhalt=e")
set(CMAKE_C_FLAGS_INIT "-qthreaded -qhalt=e")