Need to override convertConstraint to recognise amdgpu specific register names.
Differential Revision: https://reviews.llvm.org/D44533
llvm-svn: 328359
return true;
}
+ // \p Constraint will be left pointing at the last character of
+ // the constraint. In practice, it won't be changed unless the
+ // constraint is longer than one character.
+ std::string convertConstraint(const char *&Constraint) const override {
+ const char *Begin = Constraint;
+ TargetInfo::ConstraintInfo Info("", "");
+ if (validateAsmConstraint(Constraint, Info))
+ return std::string(Begin).substr(0, Constraint - Begin + 1);
+
+ Constraint = Begin;
+ return std::string(1, *Constraint);
+ }
+
bool
initFeatureMap(llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags,
StringRef CPU,
// Simplify the output constraint.
std::string OutputConstraint(S.getOutputConstraint(i));
OutputConstraint = SimplifyConstraint(OutputConstraint.c_str() + 1,
- getTarget());
+ getTarget(), &OutputConstraintInfos);
const Expr *OutExpr = S.getOutputExpr(i);
OutExpr = OutExpr->IgnoreParenNoopCasts(getContext());
--- /dev/null
+// REQUIRES: amdgpu-registered-target
+// RUN: %clang_cc1 -emit-llvm -o - -triple amdgcn %s | FileCheck %s
+
+kernel void test_long(int arg0) {
+ long v15_16;
+ // CHECK: tail call i64 asm sideeffect "v_lshlrev_b64 v[15:16], 0, $0", "={v[15:16]},v"(i32 %arg0)
+ __asm volatile("v_lshlrev_b64 v[15:16], 0, %0" : "={v[15:16]}"(v15_16) : "v"(arg0));
+}
c[i] = ci;
}
+
+void test_long(int arg0) {
+ long v15_16;
+ __asm volatile("v_lshlrev_b64 v[15:16], 0, %0" : "={v[15:16]}"(v15_16) : "v"(arg0));
+}