llvm-6502/test/Feature/unwindto.ll
Nick Lewycky 819a66cf25 Exercise the new CFG change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47990 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-06 06:55:58 +00:00

68 lines
1.3 KiB
LLVM

; RUN: llvm-as < %s | llvm-dis | llvm-as -disable-output
; PR1269
; END
; http://nondot.org/sabre/LLVMNotes/ExceptionHandlingChanges.txt
define i1 @test1(i8 %i, i8 %j) {
entry: unwind_to %target
%tmp = sub i8 %i, %j ; <i8> [#uses=1]
%b = icmp eq i8 %tmp, 0 ; <i1> [#uses=1]
ret i1 %b
target:
ret i1 false
}
define i1 @test2(i8 %i, i8 %j) {
entry:
br label %0
unwind_to %1
%tmp = sub i8 %i, %j ; <i8> [#uses=1]
%b = icmp eq i8 %tmp, 0 ; <i1> [#uses=1]
ret i1 %b
; No predecessors!
ret i1 false
}
define i1 @test3(i8 %i, i8 %j) {
entry:
br label %0
unwind_to %1
%tmp = sub i8 %i, %j ; <i8> [#uses=1]
%b = icmp eq i8 %tmp, 0 ; <i1> [#uses=1]
ret i1 %b
unwind_to %0
ret i1 false
}
define i1 @test4(i8 %i, i8 %j) {
%tmp = sub i8 %i, %j ; <i8> [#uses=1]
%b = icmp eq i8 %tmp, 0 ; <i1> [#uses=1]
br label %1
unwind_to %1
ret i1 false
}
define void @test5() {
unwind
}
define void @test6() {
entry:
br label %unwind
unwind: unwind_to %unwind
unwind
}
define i8 @test7(i1 %b) {
entry: unwind_to %cleanup
br i1 %b, label %cond_true, label %cond_false
cond_true: unwind_to %cleanup
br label %cleanup
cond_false: unwind_to %cleanup
br label %cleanup
cleanup:
%x = phi i8 [0, %entry], [1, %cond_true], [1, %cond_true],
[2, %cond_false], [2, %cond_false]
ret i8 %x
}