1 // RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm %s -o - | FileCheck %s 2 // PR3800 3 int *foo(void); 4 5 // CHECK: @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 13 void test2() { 14 // CHECK: [[REGCALLRESULT:%[a-zA-Z0-9\.]+]] = call i32* @foo() 15 // CHECK: load 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 void test3(int *vout, int vin) 23 { 24 // CHECK: call void asm "opr $0,$1", "=*r|m|r,r|m|r,~{edi},~{dirflag},~{fpsr},~{flags}" 25 asm( 26 "opr %[vout],%[vin]" 27 : [vout] "=r,=m,=r" (*vout) 28 : [vin] "r,m,r" (vin) 29 : "edi" 30 ); 31 } 32 33 // PR8959 - This should implicitly truncate the immediate to a byte. 34 int test4(volatile int *addr) { 35 unsigned char oldval; 36 __asm__ ("frob %0" : "=r"(oldval) : "0"(0xff)); 37 return (int)oldval; 38 // CHECK: call i8 asm "frob $0", "=r,0{{.*}}"(i8 -1) 39 } 40
