1 // compile with -march=armv8-a+simd on compatible aarch64 compiler
2 // linux-aarch64-neon.core was generated by: aarch64-linux-gnu-gcc-8
3 // commandline: -march=armv8-a+simd -nostdlib -static -g linux-aarch64-neon.c
4 #include <stdint.h>
5
bar(char * boom)6 static void bar(char *boom) {
7 char F = 'b';
8 asm volatile("fmov d0, #0.5\n\t");
9 asm volatile("fmov d1, #1.5\n\t");
10 asm volatile("fmov d2, #2.5\n\t");
11 asm volatile("fmov d3, #3.5\n\t");
12 asm volatile("fmov s4, #4.5\n\t");
13 asm volatile("fmov s5, #5.5\n\t");
14 asm volatile("fmov s6, #6.5\n\t");
15 asm volatile("fmov s7, #7.5\n\t");
16 asm volatile("movi v8.16b, #0x11\n\t");
17 asm volatile("movi v31.16b, #0x30\n\t");
18
19 uint64_t pattern = 0x1122334455667788;
20 asm volatile("msr tpidr_el0, %0" ::"r"(pattern));
21
22 *boom = 47; // Frame bar
23 }
24
foo(char * boom,void (* boomer)(char *))25 static void foo(char *boom, void (*boomer)(char *)) {
26 char F = 'f';
27 boomer(boom); // Frame foo
28 }
29
_start(void)30 void _start(void) {
31 char F = '_';
32 foo(0, bar); // Frame _start
33 }
34