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qsimd.cpp: don't disable SSE FP math

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Lowering the architecture all the way to the i386 baseline without SSE2
was causing warnings about disabling SSE FP math. We don't need to go
that low for 32-bit.

Task-number: QTBUG-101198
Change-Id: Ibf4acec0f166495998f7fffd16d682d0f5beec11
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
This commit is contained in:
Thiago Macieira 2022-02-23 12:02:27 -08:00
parent e8d3cf0909
commit 8e56a7bc6b
1 changed files with 7 additions and 5 deletions
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12
src/corelib/global/qsimd.cpp
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@ -200,19 +200,21 @@ static inline quint64 detectProcessorFeatures()
#ifdef Q_PROCESSOR_X86_32
# define PICreg "%%ebx"
# define X86_BASELINE "i386"
#else
# define PICreg "%%rbx"
# define X86_BASELINE "x86-64"
#endif
#ifdef __SSE2_MATH__
# define X86_BASELINE "no-sse3"
#else
# define X86_BASELINE "no-sse"
#endif
#if defined(Q_CC_GNU)
// lower the target for functions in this file
# undef QT_FUNCTION_TARGET_BASELINE
# define QT_FUNCTION_TARGET_BASELINE __attribute__((target("arch=" X86_BASELINE)))
# define QT_FUNCTION_TARGET_BASELINE __attribute__((target(X86_BASELINE)))
# define QT_FUNCTION_TARGET_STRING_BASELINE_RDRND \
"arch=" X86_BASELINE \
"," QT_FUNCTION_TARGET_STRING_RDRND
X86_BASELINE "," QT_FUNCTION_TARGET_STRING_RDRND
#endif
static bool checkRdrndWorks() noexcept;