llvm-project/llvm/test/Transforms/SCCP/switch-multiple-undef.ll

28 lines
564 B
LLVM

; RUN: opt -S -ipsccp < %s | FileCheck %s
declare void @foo()
declare void @goo()
declare void @patatino()
define void @test1(i32 %t) {
%choice = icmp eq i32 undef, -1
switch i1 %choice, label %first [i1 0, label %second
i1 1, label %third]
first:
call void @foo()
ret void
second:
call void @goo()
ret void
third:
call void @patatino()
ret void
}
; CHECK: define void @test1(i32 %t) {
; CHECK-NEXT: br label %second
; CHECK: second:
; CHECK-NEXT: call void @goo()
; CHECK-NEXT: ret void
; CHECK-NEXT: }