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 
6 int 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