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Lines 363-380
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| 363 |
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363 |
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| 364 |
dnl =========================================================================== |
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dnl =========================================================================== |
| 365 |
dnl Check for ARM SIMD instructions |
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dnl Check for ARM SIMD instructions |
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ARM_SIMD_CFLAGS="-mcpu=arm1136j-s" |
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| 367 |
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have_arm_simd=no |
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have_arm_simd=no |
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AC_MSG_CHECKING(whether to use ARM SIMD assembler) |
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AC_MSG_CHECKING(whether to use ARM SIMD assembler) |
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xserver_save_CFLAGS=$CFLAGS |
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CFLAGS="$ARM_SIMD_CFLAGS $CFLAGS" |
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AC_COMPILE_IFELSE([ |
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AC_COMPILE_IFELSE([ |
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int main () { |
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int main () { |
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asm("uqadd8 r1, r1, r2"); |
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asm("uqadd8 r1, r1, r2"); |
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return 0; |
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return 0; |
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}], have_arm_simd=yes) |
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}], have_arm_simd=yes) |
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CFLAGS=$xserver_save_CFLAGS |
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AC_ARG_ENABLE(arm-simd, |
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AC_ARG_ENABLE(arm-simd, |
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[AC_HELP_STRING([--disable-arm-simd], |
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[AC_HELP_STRING([--disable-arm-simd], |
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Lines 404-421
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| 404 |
dnl Check if assembler is gas compatible and supports NEON instructions |
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dnl Check if assembler is gas compatible and supports NEON instructions |
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have_arm_neon=no |
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have_arm_neon=no |
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AC_MSG_CHECKING(whether to use ARM NEON assembler) |
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AC_MSG_CHECKING(whether to use ARM NEON assembler) |
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xserver_save_CFLAGS=$CFLAGS |
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AC_COMPILE_IFELSE([ |
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CFLAGS="-x assembler-with-cpp" |
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AC_COMPILE_IFELSE([[ |
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.text |
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.fpu neon |
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.altmacro |
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#ifndef __ARM_EABI__ |
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#ifndef __ARM_EABI__ |
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#error EABI is required (to be sure that calling conventions are compatible) |
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#error EABI is required (to be sure that calling conventions are compatible) |
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#endif |
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#endif |
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pld [r0] |
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int main () { |
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vmovn.u16 d0, q0]], have_arm_neon=yes) |
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asm("pld r0"); |
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CFLAGS=$xserver_save_CFLAGS |
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asm("vmovn.u16 d0, q0"); |
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return 0; |
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}], have_arm_neon=yes) |
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AC_ARG_ENABLE(arm-neon, |
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AC_ARG_ENABLE(arm-neon, |
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[AC_HELP_STRING([--disable-arm-neon], |
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[AC_HELP_STRING([--disable-arm-neon], |
