4 files changed, 98 insertions, 46 deletions
diff --git a/test/Transforms/IndVarSimplify/2008-11-17-Floating.ll b/test/Transforms/IndVarSimplify/2008-11-17-Floating.ll
deleted file mode 100644
index 311d3da..0000000
--- a/test/Transforms/IndVarSimplify/2008-11-17-Floating.ll
+++ /dev/null
@@ -1,35 +0,0 @@
-; RUN: opt < %s -indvars -S | grep icmp | count 2
-; RUN: opt < %s -indvars -S | grep sitofp | count 1
-; RUN: opt < %s -indvars -S | grep uitofp | count 1
-
-define void @bar() 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, 1.0e+0		; <double> [#uses=2]
-	%2 = fcmp olt double %1, 2147483646.0e+0		; <i1> [#uses=1]
-	br i1 %2, label %bb, label %return
-
-return:		; preds = %bb
-	ret void
-}
-
-define void @bar1() 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, 1.0e+0		; <double> [#uses=2]
-	%2 = fcmp olt double %1, 2147483647.0e+0		; <i1> [#uses=1]
-	br i1 %2, label %bb, label %return
-
-return:		; preds = %bb
-	ret void
-}
-
-declare i32 @foo(double)
diff --git a/test/Transforms/IndVarSimplify/crash.ll b/test/Transforms/IndVarSimplify/crash.ll
new file mode 100644
index 0000000..14f79fe
--- /dev/null
+++ b/test/Transforms/IndVarSimplify/crash.ll
@@ -0,0 +1,19 @@
+; RUN: opt -indvars %s -disable-output
+
+declare i32 @putchar(i8) nounwind
+
+define void @t2(i1* %P) 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 @putchar(i8 72)              ; <i32> [#uses=0]
+  %4 = fadd double %2, -1.000000e+00              ; <double> [#uses=2]
+  %5 = fcmp ult double %4, 0.000000e+00           ; <i1> [#uses=1]
+  store i1 %5, i1* %P
+  br i1 %5, label %6, label %1
+
+; <label>:6                                       ; preds = %1
+  ret void
+}
+\ No newline at end of file
diff --git a/test/Transforms/IndVarSimplify/dangling-use.ll b/test/Transforms/IndVarSimplify/dangling-use.ll
new file mode 100644
index 0000000..51c3120
--- /dev/null
+++ b/test/Transforms/IndVarSimplify/dangling-use.ll
@@ -0,0 +1,41 @@
+; RUN: opt -indvars -disable-output < %s 
+
+target datalayout = "E-p:32:32:32-i1:8:8-i8:8:8-i8:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f128:64:128-n32"
+target triple = "powerpc-apple-darwin11"
+
+define void @vec_inverse_5_7_vert_loop_copyseparate(i8* %x, i32 %n, i32 %rowbytes) nounwind {
+entry:
+  %tmp1 = sdiv i32 %n, 3                          ; <i32> [#uses=1]
+  %tmp2 = sdiv i32 %rowbytes, 5                   ; <i32> [#uses=2]
+  br label %bb49
+
+bb49:                                             ; preds = %bb48, %entry
+  %x_addr.0 = phi i8* [ %x, %entry ], [ %tmp481, %bb48 ] ; <i8*> [#uses=2]
+  br label %bb10
+
+bb10:                                             ; preds = %bb49
+  %tmp326 = mul nsw i32 %tmp1, %tmp2              ; <i32> [#uses=1]
+  %tmp351 = getelementptr inbounds i8* %x_addr.0, i32 %tmp326 ; <i8*> [#uses=1]
+  br i1 false, label %bb.nph, label %bb48
+
+bb.nph:                                           ; preds = %bb10
+  br label %bb23
+
+bb23:                                             ; preds = %bb28, %bb.nph
+  %pOriginHi.01 = phi i8* [ %tmp351, %bb.nph ], [ %pOriginHi.0, %bb28 ] ; <i8*> [#uses=2]
+  %tmp378 = bitcast i8* %pOriginHi.01 to i8*      ; <i8*> [#uses=1]
+  store i8* %tmp378, i8** null
+  %tmp385 = getelementptr inbounds i8* %pOriginHi.01, i32 %tmp2 ; <i8*> [#uses=1]
+  br label %bb28
+
+bb28:                                             ; preds = %bb23
+  %pOriginHi.0 = phi i8* [ %tmp385, %bb23 ]       ; <i8*> [#uses=1]
+  br i1 false, label %bb23, label %bb28.bb48_crit_edge
+
+bb28.bb48_crit_edge:                              ; preds = %bb28
+  br label %bb48
+
+bb48:                                             ; preds = %bb28.bb48_crit_edge, %bb10
+  %tmp481 = getelementptr inbounds i8* %x_addr.0, i32 1 ; <i8*> [#uses=1]
+  br label %bb49
+}
diff --git a/test/Transforms/IndVarSimplify/2008-11-03-Floating.ll b/test/Transforms/IndVarSimplify/floating-point-iv.ll
index 7b4032b..8f4b870 100644
--- a/test/Transforms/IndVarSimplify/2008-11-03-Floating.ll
+++ b/test/Transforms/IndVarSimplify/floating-point-iv.ll
@@ -1,5 +1,5 @@
-; RUN: opt < %s -indvars -S | grep icmp | count 4
-define void @bar() nounwind {
+; RUN: opt < %s -indvars -S | FileCheck %s
+define void @test1() nounwind {
 entry:
 	br label %bb
 
@@ -12,11 +12,13 @@ bb:		; preds = %bb, %entry
 
 return:		; preds = %bb
 	ret void
+; CHECK: @test1
+; CHECK: icmp
 }
 
 declare i32 @foo(double)
 
-define void @bar2() nounwind {
+define void @test2() nounwind {
 entry:
 	br label %bb
 
@@ -29,25 +31,29 @@ bb:		; preds = %bb, %entry
 
 return:		; preds = %bb
 	ret void
+; CHECK: @test2
+; CHECK: icmp
 }
 
 
-define void @bar3() nounwind {
+define void @test3() 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+00		; <i1> [#uses=1]
+	%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:		; preds = %bb
+return:
 	ret void
+; CHECK: @test3
+; CHECK: fcmp
 }
 
-define void @bar4() nounwind {
+define void @test4() nounwind {
 entry:
 	br label %bb
 
@@ -58,8 +64,29 @@ bb:		; preds = %bb, %entry
 	%2 = fcmp olt double %1, 1.000000e+00		; <i1> [#uses=1]
 	br i1 %2, label %bb, label %return
 
-return:		; preds = %bb
+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
+}