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diff gen/tocall.cpp @ 1001:7a0238db1962

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Implement support for intrinsics returning struct types (such as llvm.*.with.overflow)
author Frits van Bommel <fvbommel wxs.nl>
date Thu, 26 Feb 2009 22:47:06 +0100
parents 2667e3a145be
children 8c73ff5f69e0
line wrap: on
line diff
--- a/gen/tocall.cpp	Thu Feb 26 18:43:25 2009 +0100
+++ b/gen/tocall.cpp	Thu Feb 26 22:47:06 2009 +0100
@@ -464,8 +464,22 @@
     // get return value
     LLValue* retllval = (retinptr) ? args[0] : call->get();
 
-    // do abi specific return value fixups
-    retllval = gABI->getRet(tf, retllval);
+    if (tf->linkage == LINKintrinsic)
+    {
+        // Ignore ABI for intrinsics
+        Type* rettype = tf->next;
+        if (rettype->ty == Tstruct) {
+            // LDC assumes structs are in memory, so put it there.
+            LLValue* mem = DtoAlloca(retllval->getType());
+            DtoStore(retllval, mem);
+            retllval = mem;
+        }
+    }
+    else
+    {
+        // do abi specific return value fixups
+        retllval = gABI->getRet(tf, retllval);
+    }
 
     // repaint the type if necessary
     if (resulttype)