| // compile with -march=armv8-a+simd on compatible aarch64 compiler |
| // linux-aarch64-neon.core was generated by: aarch64-linux-gnu-gcc-8 |
| // commandline: -march=armv8-a+simd -nostdlib -static -g linux-aarch64-neon.c |
| #include <stdint.h> |
| |
| static void bar(char *boom) { |
| char F = 'b'; |
| asm volatile("fmov d0, #0.5\n\t"); |
| asm volatile("fmov d1, #1.5\n\t"); |
| asm volatile("fmov d2, #2.5\n\t"); |
| asm volatile("fmov d3, #3.5\n\t"); |
| asm volatile("fmov s4, #4.5\n\t"); |
| asm volatile("fmov s5, #5.5\n\t"); |
| asm volatile("fmov s6, #6.5\n\t"); |
| asm volatile("fmov s7, #7.5\n\t"); |
| asm volatile("movi v8.16b, #0x11\n\t"); |
| asm volatile("movi v31.16b, #0x30\n\t"); |
| |
| uint64_t pattern = 0x1122334455667788; |
| asm volatile("msr tpidr_el0, %0" ::"r"(pattern)); |
| |
| *boom = 47; // Frame bar |
| } |
| |
| static void foo(char *boom, void (*boomer)(char *)) { |
| char F = 'f'; |
| boomer(boom); // Frame foo |
| } |
| |
| void _start(void) { |
| char F = '_'; |
| foo(0, bar); // Frame _start |
| } |