| // RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm %s -o - | FileCheck %s |
| // PR3800 |
| int *foo(void); |
| |
| // CHECK: @test1 |
| void test1() { |
| // CHECK: [[REGCALLRESULT:%[a-zA-Z0-9\.]+]] = call i32* @foo() |
| // CHECK: call void asm "foobar", "=*m,*m,~{dirflag},~{fpsr},~{flags}"(i32* [[REGCALLRESULT]], i32* [[REGCALLRESULT]]) |
| asm ("foobar" : "+m"(*foo())); |
| } |
| |
| // CHECK: @test2 |
| void test2() { |
| // CHECK: [[REGCALLRESULT:%[a-zA-Z0-9\.]+]] = call i32* @foo() |
| // CHECK: load i32* [[REGCALLRESULT]] |
| // CHECK: call i32 asm |
| // CHECK: store i32 {{%[a-zA-Z0-9\.]+}}, i32* [[REGCALLRESULT]] |
| asm ("foobar" : "+r"(*foo())); |
| } |
| |
| // PR7338 |
| void test3(int *vout, int vin) |
| { |
| // CHECK: call void asm "opr $0,$1", "=*r|m|r,r|m|r,~{edi},~{dirflag},~{fpsr},~{flags}" |
| asm( |
| "opr %[vout],%[vin]" |
| : [vout] "=r,=m,=r" (*vout) |
| : [vin] "r,m,r" (vin) |
| : "edi" |
| ); |
| } |
| |
| // PR8959 - This should implicitly truncate the immediate to a byte. |
| int test4(volatile int *addr) { |
| unsigned char oldval; |
| __asm__ ("frob %0" : "=r"(oldval) : "0"(0xff)); |
| return (int)oldval; |
| // CHECK: call i8 asm "frob $0", "=r,0{{.*}}"(i8 -1) |
| } |
