1*f4a2713aSLionel Sambuc // RUN: %clang_cc1 -triple aarch64-none-linux-gnu -emit-llvm -o - %s | FileCheck %s 2*f4a2713aSLionel Sambuc 3*f4a2713aSLionel Sambuc // The only part clang really deals with is the lvalue/rvalue 4*f4a2713aSLionel Sambuc // distinction on constraints. It's sufficient to emit llvm and make 5*f4a2713aSLionel Sambuc // sure that's sane. 6*f4a2713aSLionel Sambuc 7*f4a2713aSLionel Sambuc long var; 8*f4a2713aSLionel Sambuc 9*f4a2713aSLionel Sambuc void test_generic_constraints(int var32, long var64) { 10*f4a2713aSLionel Sambuc asm("add %0, %1, %1" : "=r"(var32) : "0"(var32)); 11*f4a2713aSLionel Sambuc // CHECK: [[R32_ARG:%[a-zA-Z0-9]+]] = load i32* 12*f4a2713aSLionel Sambuc // CHECK: call i32 asm "add $0, $1, $1", "=r,0"(i32 [[R32_ARG]]) 13*f4a2713aSLionel Sambuc 14*f4a2713aSLionel Sambuc asm("add %0, %1, %1" : "=r"(var64) : "0"(var64)); 15*f4a2713aSLionel Sambuc // CHECK: [[R32_ARG:%[a-zA-Z0-9]+]] = load i64* 16*f4a2713aSLionel Sambuc // CHECK: call i64 asm "add $0, $1, $1", "=r,0"(i64 [[R32_ARG]]) 17*f4a2713aSLionel Sambuc 18*f4a2713aSLionel Sambuc asm("ldr %0, %1" : "=r"(var32) : "m"(var)); 19*f4a2713aSLionel Sambuc asm("ldr %0, [%1]" : "=r"(var64) : "r"(&var)); 20*f4a2713aSLionel Sambuc // CHECK: call i32 asm "ldr $0, $1", "=r,*m"(i64* @var) 21*f4a2713aSLionel Sambuc // CHECK: call i64 asm "ldr $0, [$1]", "=r,r"(i64* @var) 22*f4a2713aSLionel Sambuc } 23*f4a2713aSLionel Sambuc 24*f4a2713aSLionel Sambuc float f; 25*f4a2713aSLionel Sambuc double d; 26*f4a2713aSLionel Sambuc void test_constraint_w() { 27*f4a2713aSLionel Sambuc asm("fadd %s0, %s1, %s1" : "=w"(f) : "w"(f)); 28*f4a2713aSLionel Sambuc // CHECK: [[FLT_ARG:%[a-zA-Z_0-9]+]] = load float* @f 29*f4a2713aSLionel Sambuc // CHECK: call float asm "fadd ${0:s}, ${1:s}, ${1:s}", "=w,w"(float [[FLT_ARG]]) 30*f4a2713aSLionel Sambuc 31*f4a2713aSLionel Sambuc asm("fadd %d0, %d1, %d1" : "=w"(d) : "w"(d)); 32*f4a2713aSLionel Sambuc // CHECK: [[DBL_ARG:%[a-zA-Z_0-9]+]] = load double* @d 33*f4a2713aSLionel Sambuc // CHECK: call double asm "fadd ${0:d}, ${1:d}, ${1:d}", "=w,w"(double [[DBL_ARG]]) 34*f4a2713aSLionel Sambuc } 35*f4a2713aSLionel Sambuc 36*f4a2713aSLionel Sambuc void test_constraints_immed(void) { 37*f4a2713aSLionel Sambuc asm("add x0, x0, %0" : : "I"(4095) : "x0"); 38*f4a2713aSLionel Sambuc asm("and w0, w0, %0" : : "K"(0xaaaaaaaa) : "w0"); 39*f4a2713aSLionel Sambuc asm("and x0, x0, %0" : : "L"(0xaaaaaaaaaaaaaaaa) : "x0"); 40*f4a2713aSLionel Sambuc // CHECK: call void asm sideeffect "add x0, x0, $0", "I,~{x0}"(i32 4095) 41*f4a2713aSLionel Sambuc // CHECK: call void asm sideeffect "and w0, w0, $0", "K,~{w0}"(i32 -1431655766) 42*f4a2713aSLionel Sambuc // CHECK: call void asm sideeffect "and x0, x0, $0", "L,~{x0}"(i64 -6148914691236517206) 43*f4a2713aSLionel Sambuc } 44*f4a2713aSLionel Sambuc 45*f4a2713aSLionel Sambuc void test_constraint_S(void) { 46*f4a2713aSLionel Sambuc int *addr; 47*f4a2713aSLionel Sambuc asm("adrp %0, %A1\n\t" 48*f4a2713aSLionel Sambuc "add %0, %0, %L1" : "=r"(addr) : "S"(&var)); 49*f4a2713aSLionel Sambuc // CHECK: call i32* asm "adrp $0, ${1:A}\0A\09add $0, $0, ${1:L}", "=r,S"(i64* @var) 50*f4a2713aSLionel Sambuc } 51*f4a2713aSLionel Sambuc 52*f4a2713aSLionel Sambuc void test_constraint_Q(void) { 53*f4a2713aSLionel Sambuc int val; 54*f4a2713aSLionel Sambuc asm("ldxr %0, %1" : "=r"(val) : "Q"(var)); 55*f4a2713aSLionel Sambuc // CHECK: call i32 asm "ldxr $0, $1", "=r,*Q"(i64* @var) 56*f4a2713aSLionel Sambuc } 57