; RUN: opt < %s -correlated-propagation -S | FileCheck %s
; PR2581
-; CHECK: @test1
+; CHECK-LABEL: @test1(
define i32 @test1(i1 %C) nounwind {
br i1 %C, label %exit, label %body
; PR4420
declare i1 @ext()
-; CHECK: @test2
+; CHECK-LABEL: @test2(
define i1 @test2() {
entry:
%cond = tail call i1 @ext() ; <i1> [#uses=2]
; PR4855
@gv = internal constant i8 7
-; CHECK: @test3
+; CHECK-LABEL: @test3(
define i8 @test3(i8* %a) nounwind {
entry:
%cond = icmp eq i8* %a, @gv
}
; PR1757
-; CHECK: @test4
+; CHECK-LABEL: @test4(
define i32 @test4(i32) {
EntryBlock:
; CHECK: icmp sgt i32 %0, 2
ret i32 0
}
+declare i32* @f(i32*)
+define void @test5(i32* %x, i32* %y) {
+; CHECK-LABEL: @test5(
+entry:
+ %pre = icmp eq i32* %x, null
+ br i1 %pre, label %return, label %loop
+
+loop:
+ %phi = phi i32* [ %sel, %loop ], [ %x, %entry ]
+; CHECK: %phi = phi i32* [ %f, %loop ], [ %x, %entry ]
+ %f = tail call i32* @f(i32* %phi)
+ %cmp1 = icmp ne i32* %f, %y
+ %sel = select i1 %cmp1, i32* %f, i32* null
+ %cmp2 = icmp eq i32* %sel, null
+ br i1 %cmp2, label %return, label %loop
+
+return:
+ ret void
+}
+
define i32 @switch1(i32 %s) {
-; CHECK: @switch1
+; CHECK-LABEL: @switch1(
entry:
%cmp = icmp slt i32 %s, 0
br i1 %cmp, label %negative, label %out
]
out:
- %p = phi i32 [ 1, %entry ], [ -1, %negative ], [ -1, %negative ], [ -1, %negative ], [ -1, %negative ]
+ %p = phi i32 [ 1, %entry ], [ -1, %negative ], [ -1, %negative ], [ -1, %negative ], [ -1, %negative ], [ -1, %negative ]
ret i32 %p
next:
}
define i32 @switch2(i32 %s) {
-; CHECK: @switch2
+; CHECK-LABEL: @switch2(
entry:
%cmp = icmp sgt i32 %s, 0
br i1 %cmp, label %positive, label %out
}
define i32 @switch3(i32 %s) {
-; CHECK: @switch3
+; CHECK-LABEL: @switch3(
entry:
%cmp = icmp sgt i32 %s, 0
br i1 %cmp, label %positive, label %out
}
define void @switch4(i32 %s) {
-; CHECK: @switch4
+; CHECK-LABEL: @switch4(
entry:
%cmp = icmp eq i32 %s, 0
br i1 %cmp, label %zero, label %out