Add forgotten test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108506 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGen/X86/2010-07-11-FPStackLoneUse.ll

@@ -0,0 +1,28 @@
+; RUN: llc < %s -mcpu=i486
+; PR7375
+;
+; This function contains a block (while.cond) with a lonely RFP use that is
+; not a kill. We still need an FP_REG_KILL for that block since the register
+; allocator will insert a reload.
+;
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
+target triple = "x86_64-apple-darwin10.0.0"
+
+define void @_ZN7QVectorIdE4fillERKdi(double* nocapture %t) nounwind ssp align 2 {
+entry:
+  %tmp2 = load double* %t                         ; <double> [#uses=1]
+  br i1 undef, label %if.end, label %if.then
+
+if.then:                                          ; preds = %entry
+  br i1 undef, label %if.end, label %bb.nph
+
+while.cond:                                       ; preds = %bb.nph, %while.cond
+  store double %tmp2, double* undef
+  br i1 undef, label %if.end, label %while.cond
+
+bb.nph:                                           ; preds = %if.then
+  br label %while.cond
+
+if.end:                                           ; preds = %while.cond, %if.then, %entry
+  ret void
+}