asm-variable.c revision 0ec89f928ce5b3294c2ed644ec1a42656e1af39d
1// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s 2 3unsigned long long foo(unsigned long long addr, unsigned long long a0, 4 unsigned long long a1, unsigned long long a2, 5 unsigned long long a3, unsigned long long a4, 6 unsigned long long a5) { 7 register unsigned long long result asm("rax"); 8 register unsigned long long b0 asm("rdi"); 9 register unsigned long long b1 asm("rsi"); 10 register unsigned long long b2 asm("rdx"); 11 register unsigned long long b3 asm("rcx"); 12 register unsigned long long b4 asm("r8"); 13 register unsigned long long b5 asm("r9"); 14 15 b0 = a0; 16 b1 = a1; 17 b2 = a2; 18 b3 = a3; 19 b4 = a4; 20 b5 = a5; 21 22 asm("call *%1" : "=r" (result) 23 : "r"(addr), "r" (b0), "r" (b1), "r" (b2), "r" (b3), "r" (b4), "r" (b5)); 24 return result; 25} 26 27// CHECK: call i64 asm "call *$1", "={rax},r,{rdi},{rsi},{rdx},{rcx},{r8},{r9},~{dirflag},~{fpsr},~{flags}" 28