1 // RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm %s -o - | FileCheck %s
2 // PR3800
3 int *foo(void);
4
5 // CHECK: @test1
test1()6 void test1() {
7 // CHECK: [[REGCALLRESULT:%[a-zA-Z0-9\.]+]] = call i32* @foo()
8 // CHECK: call void asm "foobar", "=*m,*m,~{dirflag},~{fpsr},~{flags}"(i32* [[REGCALLRESULT]], i32* [[REGCALLRESULT]])
9 asm ("foobar" : "+m"(*foo()));
10 }
11
12 // CHECK: @test2
test2()13 void test2() {
14 // CHECK: [[REGCALLRESULT:%[a-zA-Z0-9\.]+]] = call i32* @foo()
15 // CHECK: load i32, i32* [[REGCALLRESULT]]
16 // CHECK: call i32 asm
17 // CHECK: store i32 {{%[a-zA-Z0-9\.]+}}, i32* [[REGCALLRESULT]]
18 asm ("foobar" : "+r"(*foo()));
19 }
20
21 // PR7338
22 // CHECK: @test3
test3(int * vout,int vin)23 void test3(int *vout, int vin)
24 {
25 // CHECK: call void asm "opr $0,$1", "=*r|m|r,r|m|r,~{edi},~{dirflag},~{fpsr},~{flags}"
26 asm ("opr %[vout],%[vin]"
27 : [vout] "=r,=m,=r" (*vout)
28 : [vin] "r,m,r" (vin)
29 : "edi");
30 }
31
32 // PR8959 - This should implicitly truncate the immediate to a byte.
33 // CHECK: @test4
test4(volatile int * addr)34 int test4(volatile int *addr) {
35 unsigned char oldval;
36 // CHECK: call i8 asm "frob $0", "=r,0{{.*}}"(i8 -1)
37 __asm__ ("frob %0" : "=r"(oldval) : "0"(0xff));
38 return (int)oldval;
39 }
40
41 // <rdar://problem/10919182> - This should have both inputs be of type x86_mmx.
42 // CHECK: @test5
43 typedef long long __m64 __attribute__((__vector_size__(8)));
test5(__m64 __A,__m64 __B)44 __m64 test5(__m64 __A, __m64 __B) {
45 // CHECK: call x86_mmx asm "pmulhuw $1, $0\0A\09", "=y,y,0,~{dirflag},~{fpsr},~{flags}"(x86_mmx %{{.*}}, x86_mmx %{{.*}})
46 asm ("pmulhuw %1, %0\n\t" : "+y" (__A) : "y" (__B));
47 return __A;
48 }
49