When this test case was first created it was

just trying to show it did not crash and burn.

This patch checks that the resultant .ll contents
are correct.

llvm-svn: 162249

clang/test/CodeGen/mips-constraint-regs.c

@@ -1,4 +1,5 @@
-// RUN: %clang -target mipsel-unknown-linux -ccc-clang-archs mipsel -S -o - -emit-llvm %s
+// RUN: %clang -target mipsel-unknown-linux -ccc-clang-archs mipsel -S -o - -emit-llvm %s \
+// RUN: | FileCheck %s
 
 // This checks that the frontend will accept inline asm constraints
 // c', 'l' and 'x'. Semantic checking will happen in the
@@ -10,6 +11,7 @@ int main()
   // 'c': 16 bit address register for Mips16, GPR for all others
   // I am using 'c' to constrain both the target and one of the source
   // registers. We are looking for syntactical correctness.
+  // CHECK: %{{[0-9]+}} = call i32 asm sideeffect "addi $0,$1,$2 \0A\09\09", "=c,c,I"(i32 %{{[0-9]+}}, i32 %{{[0-9]+}}) nounwind, !srcloc !{{[0-9]+}}
   int __s, __v = 17;
   int __t;
   __asm__ __volatile__(
@@ -20,6 +22,7 @@ int main()
   // 'l': lo register
   // We are making it clear that destination register is lo with the
   // use of the 'l' constraint ("=l").
+  // CHECK:   %{{[0-9]+}} = call i32 asm sideeffect "mtlo $1 \0A\09\09", "=l,r,~{lo}"(i32 %{{[0-9]+}}) nounwind, !srcloc !{{[0-9]+}}
   int i_temp = 44;
   int i_result;
   __asm__ __volatile__(
@@ -31,6 +34,7 @@ int main()
   // 'x': Combined lo/hi registers
   // We are specifying that destination registers are the hi/lo pair with the
   // use of the 'x' constraint ("=x").
+  // CHECK:  %{{[0-9]+}} = call i64 asm sideeffect "mthi $1 \0A\09\09mtlo $2 \0A\09\09", "=x,r,r"(i32 %{{[0-9]+}}, i32 %{{[0-9]+}}) nounwind, !srcloc !{{[0-9]+}}
   int i_hi = 3;
   int i_lo = 2;
   long long ll_result = 0;
@@ -40,5 +44,6 @@ int main()
       : "=x" (ll_result)
         : "r" (i_hi), "r" (i_lo)
           : );
+
   return 0;
 }