1 files changed, 92 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/floating-point-iv.ll b/test/Transforms/IndVarSimplify/floating-point-iv.ll
new file mode 100644
index 0000000..8f4b870
--- /dev/null
+++ b/test/Transforms/IndVarSimplify/floating-point-iv.ll
@@ -0,0 +1,92 @@
+; RUN: opt < %s -indvars -S | FileCheck %s
+define void @test1() nounwind {
+entry:
+	br label %bb
+
+bb:		; preds = %bb, %entry
+	%x.0.reg2mem.0 = phi double [ 0.000000e+00, %entry ], [ %1, %bb ]		; <double> [#uses=2]
+	%0 = tail call i32 @foo(double %x.0.reg2mem.0) nounwind		; <i32> [#uses=0]
+	%1 = fadd double %x.0.reg2mem.0, 1.000000e+00		; <double> [#uses=2]
+	%2 = fcmp olt double %1, 1.000000e+04		; <i1> [#uses=1]
+	br i1 %2, label %bb, label %return
+
+return:		; preds = %bb
+	ret void
+; CHECK: @test1
+; CHECK: icmp
+}
+
+declare i32 @foo(double)
+
+define void @test2() nounwind {
+entry:
+	br label %bb
+
+bb:		; preds = %bb, %entry
+	%x.0.reg2mem.0 = phi double [ -10.000000e+00, %entry ], [ %1, %bb ]		; <double> [#uses=2]
+	%0 = tail call i32 @foo(double %x.0.reg2mem.0) nounwind		; <i32> [#uses=0]
+	%1 = fadd double %x.0.reg2mem.0, 2.000000e+00		; <double> [#uses=2]
+	%2 = fcmp olt double %1, -1.000000e+00		; <i1> [#uses=1]
+	br i1 %2, label %bb, label %return
+
+return:		; preds = %bb
+	ret void
+; CHECK: @test2
+; CHECK: icmp
+}
+
+
+define void @test3() nounwind {
+entry:
+	br label %bb
+
+bb:		; preds = %bb, %entry
+	%x.0.reg2mem.0 = phi double [ 0.000000e+00, %entry ], [ %1, %bb ]
+	%0 = tail call i32 @foo(double %x.0.reg2mem.0) nounwind
+	%1 = fadd double %x.0.reg2mem.0, 1.000000e+00
+	%2 = fcmp olt double %1, -1.000000e+00
+	br i1 %2, label %bb, label %return
+
+return:
+	ret void
+; CHECK: @test3
+; CHECK: fcmp
+}
+
+define void @test4() nounwind {
+entry:
+	br label %bb
+
+bb:		; preds = %bb, %entry
+	%x.0.reg2mem.0 = phi double [ 40.000000e+00, %entry ], [ %1, %bb ]		; <double> [#uses=2]
+	%0 = tail call i32 @foo(double %x.0.reg2mem.0) nounwind		; <i32> [#uses=0]
+	%1 = fadd double %x.0.reg2mem.0, -1.000000e+00		; <double> [#uses=2]
+	%2 = fcmp olt double %1, 1.000000e+00		; <i1> [#uses=1]
+	br i1 %2, label %bb, label %return
+
+return:
+	ret void
+; CHECK: @test4
+; CHECK: fcmp
+}
+
+; PR6761
+define void @test5() nounwind {
+; <label>:0
+  br label %1
+
+; <label>:1                                       ; preds = %1, %0
+  %2 = phi double [ 9.000000e+00, %0 ], [ %4, %1 ] ; <double> [#uses=1]
+  %3 = tail call i32 @foo(double 0.0)              ; <i32> [#uses=0]
+  %4 = fadd double %2, -1.000000e+00              ; <double> [#uses=2]
+  %5 = fcmp ult double %4, 0.000000e+00           ; <i1> [#uses=1]
+  br i1 %5, label %exit, label %1
+
+exit:
+  ret void
+  
+; CHECK: @test5
+; CHECK: icmp eq i32 {{.*}}, 10
+; CHECK-NEXT: br i1
+}
+