| // RUN: %clang -target mipsel-unknown-linux -S -o - -emit-llvm %s \ |
| // RUN: | FileCheck %s |
| |
| // This checks that the frontend will accept inline asm memory constraints. |
| |
| int foo() |
| { |
| |
| // 'R': An address that can be used in a non-macro load or stor' |
| // This test will result in the higher and lower nibbles being |
| // switched due to the lwl/lwr instruction pairs. |
| // 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, |
| |
| int c = 0xffbbccdd; |
| |
| int *p = &c; |
| int out = 0; |
| |
| __asm volatile ( |
| "lwl %0, 1 + %1\n\t" |
| "lwr %0, 2 + %1\n\t" |
| : "=r"(out) |
| : "R"(*p) |
| ); |
| return 0; |
| } |
