1// RUN: %clang -target mipsel-unknown-linux -S -o - -emit-llvm %s \
2// RUN: | FileCheck %s
3
4// This checks that the frontend will accept inline asm memory constraints.
5
6int foo()
7{
8
9 // 'R': An address that can be used in a non-macro load or stor'
10 // This test will result in the higher and lower nibbles being
11 // switched due to the lwl/lwr instruction pairs.
12 // CHECK:   %{{[0-9]+}} = call i32 asm sideeffect  "lwl $0, 1 + $1\0A\09lwr $0, 2 + $1\0A\09", "=r,*R"(i32* %{{[0-9,a-f]+}}) #1,
13
14  int c = 0xffbbccdd;
15
16  int *p = &c;
17  int out = 0;
18
19  __asm volatile (
20    "lwl %0, 1 + %1\n\t"
21    "lwr %0, 2 + %1\n\t"
22    : "=r"(out)
23    : "R"(*p)
24    );
25  return 0;
26}
27