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,~{$1}"(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
