Fix for PR4235: to build a floating-point value from integer parts,
build an integer and cast that to a float. This fixes a crash
caused by trying to split an f32 into two f16's.
This changes the behavior in test/CodeGen/XCore/fneg.ll because that
testcase now triggers a DAGCombine which converts the fneg into an integer
operation. If someone is interested, it's probably possible to tweak
the test to generate an actual fneg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72162 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/MSP430/2009-05-19-DoubleSplit.ll b/test/CodeGen/MSP430/2009-05-19-DoubleSplit.ll
new file mode 100644
index 0000000..20050e9
--- /dev/null
+++ b/test/CodeGen/MSP430/2009-05-19-DoubleSplit.ll
@@ -0,0 +1,11 @@
+; RUN: llvm-as < %s | llc -march=msp430
+
+define i16 @test(double %d) nounwind {
+entry:
+ %add = add double %d, 1.000000e+00
+ %call = tail call i16 @funct(double %add) nounwind
+ ret i16 %call
+}
+
+declare i16 @funct(double)
+