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authorBrad King <brad.king@kitware.com>2015-07-02 13:20:14 (GMT)
committerBrad King <brad.king@kitware.com>2015-07-02 13:20:14 (GMT)
commita33fb493de9098a22c4a3bd58a49e32ee156f0f8 (patch)
tree8a5f2d9e724f44ee666d70c4af62c3fae52a13e7
parent3ae8e84ef5c94e5fa250b4e2466aa6632a233bb2 (diff)
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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>
-rw-r--r--Modules/Compiler/XL-ASM.cmake3
-rw-r--r--Modules/Compiler/XL-C.cmake3
2 files changed, 2 insertions, 4 deletions
diff --git a/Modules/Compiler/XL-ASM.cmake b/Modules/Compiler/XL-ASM.cmake
index 07507f9..212179e 100644
--- a/Modules/Compiler/XL-ASM.cmake
+++ b/Modules/Compiler/XL-ASM.cmake
@@ -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")
diff --git a/Modules/Compiler/XL-C.cmake b/Modules/Compiler/XL-C.cmake
index 09a5529..97dd017 100644
--- a/Modules/Compiler/XL-C.cmake
+++ b/Modules/Compiler/XL-C.cmake
@@ -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")