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| author | Allan Sandfeld Jensen <allan.jensen@theqtcompany.com> | 2015-02-27 12:44:47 +0100 |
|---|---|---|
| committer | Allan Sandfeld Jensen <allan.jensen@theqtcompany.com> | 2015-03-04 16:45:05 +0000 |
| commit | b678445901b7fbae3d6d5816305cd3569ad9364a (patch) | |
| tree | 385c41256cd0d2a6f0992dae6fc9ef1cfd264684 /mkspecs/features/simd.prf | |
| parent | 8ac63a3323585de28428df3f376bdf3f3c2a67fb (diff) | |
Fix leaking ISA extensions in LTCG builds
Due to common subexpression elimination instruction set extensions may
leak from the objects where they were enabled when doing link-time
optimizations.
To avoid that this patch disables LTCG/LTO on files built with extra
instruction set extensions.
Change-Id: Ie34ad900be7fb04a0dc4d3562187ee170c183333
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'mkspecs/features/simd.prf')
| -rw-r--r-- | mkspecs/features/simd.prf | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mkspecs/features/simd.prf b/mkspecs/features/simd.prf index 7d9eaffafa..700d79a1b5 100644 --- a/mkspecs/features/simd.prf +++ b/mkspecs/features/simd.prf @@ -27,6 +27,7 @@ defineTest(addSimdCompiler) { CONFIG($$1) { cflags = $$eval(QMAKE_CFLAGS_$${upname}) + ltcg: cflags += $$QMAKE_CFLAGS_DISABLE_LTCG contains(QT_CPU_FEATURES, $$name) { # Default compiler settings include this feature, so just add to SOURCES SOURCES += $$eval($$sources_var) |