[Sparc] Add floating-point register names

Reviewers: jyknight

Reviewed By: jyknight

Subscribers: eraman, fedor.sergeev, jrtc27, cfe-commits

Differential Revision: https://reviews.llvm.org/D47137

llvm-svn: 333510
diff --git a/clang/test/CodeGen/sparcv8-inline-asm.c b/clang/test/CodeGen/sparcv8-inline-asm.c
index 711a2a0..8befe45 100644
--- a/clang/test/CodeGen/sparcv8-inline-asm.c
+++ b/clang/test/CodeGen/sparcv8-inline-asm.c
@@ -1,7 +1,7 @@
 // RUN: %clang_cc1 -triple sparc-unknown-unknown -emit-llvm %s -o - | FileCheck %s
 
 // CHECK: define float @fabsf(float %a)
-// CHECK: %{{.*}} = call float asm sideeffect "fabss $1, $0;", "=e,f"(float %{{.*}}) #1
+// CHECK: %{{.*}} = call float asm sideeffect "fabss $1, $0;", "=e,f"(float %{{.*}})
 float fabsf(float a) {
   float res;
   __asm __volatile__("fabss  %1, %0;"
@@ -9,3 +9,34 @@
                      : /* reg in */ "f"(a));
   return res;
 }
+
+void test_gcc_registers(void) {
+    register unsigned int regO6 asm("o6") = 0;
+    register unsigned int regSP asm("sp") = 1;
+    register unsigned int reg14 asm("r14") = 2;
+    register unsigned int regI6 asm("i6") = 3;
+    register unsigned int regFP asm("fp") = 4;
+    register unsigned int reg30 asm("r30") = 5;
+
+    register float fF20 asm("f20") = 8.0;
+    register double dF20 asm("f20") = 11.0;
+    register long double qF20 asm("f20") = 14.0;
+
+    // Test remapping register names in register ... asm("rN") statments.
+
+    // CHECK: call void asm sideeffect "add $0,$1,$2", "{r14},{r14},{r14}"
+    asm volatile("add %0,%1,%2" : : "r" (regO6), "r" (regSP), "r" (reg14));
+
+    // CHECK: call void asm sideeffect "add $0,$1,$2", "{r30},{r30},{r30}"
+    asm volatile("add %0,%1,%2" : : "r" (regI6), "r" (regFP), "r" (reg30));
+
+     // CHECK: call void asm sideeffect "fadds $0,$1,$2", "{f20},{f20},{f20}"
+    asm volatile("fadds %0,%1,%2" : : "f" (fF20), "f" (fF20), "f"(fF20));
+
+    // CHECK: call void asm sideeffect "faddd $0,$1,$2", "{f20},{f20},{f20}"
+    asm volatile("faddd %0,%1,%2" : : "f" (dF20), "f" (dF20), "f"(dF20));
+
+    // CHECK: call void asm sideeffect "faddq $0,$1,$2", "{f20},{f20},{f20}"
+    asm volatile("faddq %0,%1,%2" : : "f" (qF20), "f" (qF20), "f"(qF20));
+
+}