Author: kparzysz
Date: Fri Jul 21 11:07:15 2017
New Revision: 308763
URL: http://llvm.org/viewvc/llvm-project?rev=308763&view=rev
Log:
[Hexagon] Add inline-asm constraint 'a' for modifier register class
For example
asm ("memw(%0++%1) = %2" : : "r"(addr),"a"(mod),"r"(val) : "memory")
Modified:
cfe/trunk/lib/Basic/Targets.cpp
cfe/trunk/test/CodeGen/hexagon-inline-asm.c
Modified: cfe/trunk/lib/Basic/Targets.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets.cpp?rev=308763&r1=308762&r2=308763&view=diff
==============================================================================
--- cfe/trunk/lib/Basic/Targets.cpp (original)
+++ cfe/trunk/lib/Basic/Targets.cpp Fri Jul 21 11:07:15 2017
@@ -6887,6 +6887,9 @@ public:
return true;
}
break;
+ case 'a': // Modifier register m0-m1.
+ Info.setAllowsRegister();
+ return true;
case 's':
// Relocatable constant.
return true;
Modified: cfe/trunk/test/CodeGen/hexagon-inline-asm.c
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/hexagon-inline-asm.c?rev=308763&r1=308762&r2=308763&view=diff
==============================================================================
--- cfe/trunk/test/CodeGen/hexagon-inline-asm.c (original)
+++ cfe/trunk/test/CodeGen/hexagon-inline-asm.c Fri Jul 21 11:07:15 2017
@@ -15,3 +15,9 @@ void foo(v64 v0, v64 v1, v64 *p) {
asm ("%0 = memw(##%1)" : "=r"(r) : "s"(&g));
// CHECK: call i32 asm "$0 = memw(##$1)", "=r,s"(i32* @g)
}
+
+void fred(unsigned *p, unsigned m, unsigned v) {
+ asm ("memw(%0++%1) = %2" : : "r"(p),"a"(m),"r"(v) : "memory");
+// CHECK: call void asm sideeffect "memw($0++$1) = $2", "r,a,r,~{memory}"(i32*
%0, i32 %1, i32 %2)
+}
+
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
