1 files changed, 13 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2006-12-05-fp-to-int-ext.ll b/test/Transforms/InstCombine/2006-12-05-fp-to-int-ext.ll
new file mode 100644
index 0000000..4661dfe
--- /dev/null
+++ b/test/Transforms/InstCombine/2006-12-05-fp-to-int-ext.ll
@@ -0,0 +1,13 @@
+; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine | llvm-dis | grep zext
+
+; Never merge these two conversions, even though it's possible: this is
+; significantly more expensive than the two conversions on some targets
+; and it causes libgcc to be compile __fixunsdfdi into a recursive 
+; function.
+
+
+long %test(double %D) {
+	%A = fptoui double %D to uint
+	%B = zext uint %A to long
+	ret long %B
+}