Add some missing X86-specific asm constraint letters, and fix
some bugs in setting allowsRegister on the ones there.
8348447.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111980 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/asm.c b/test/CodeGen/asm.c
index 5077028..eb11285 100644
--- a/test/CodeGen/asm.c
+++ b/test/CodeGen/asm.c
@@ -168,3 +168,25 @@
// CHECK: call x86_fp80 asm sideeffect "frndint"
// CHECK-NEXT: fptrunc x86_fp80 {{.*}} to float
}
+
+// <rdar://problem/8348447> - accept 'l' constraint
+unsigned char t22(unsigned char a, unsigned char b) {
+ unsigned int la = a;
+ unsigned int lb = b;
+ unsigned int bigres;
+ unsigned char res;
+ __asm__ ("0:\n1:\n" : [bigres] "=la"(bigres) : [la] "0"(la), [lb] "c"(lb) :
+ "edx", "cc");
+ res = bigres;
+ return res;
+}
+
+// <rdar://problem/8348447> - accept 'l' constraint
+unsigned char t23(unsigned char a, unsigned char b) {
+ unsigned int la = a;
+ unsigned int lb = b;
+ unsigned char res;
+ __asm__ ("0:\n1:\n" : [res] "=la"(res) : [la] "0"(la), [lb] "c"(lb) :
+ "edx", "cc");
+ return res;
+}