llvm-project/llvm/test/Transforms/InstCombine/select-crash-noverify.ll

20 lines
513 B
LLVM

; RUN: opt < %s -disable-verify -instcombine -S | opt -S | FileCheck %s
; Formerly crashed, PR8490.
; CHECK-LABEL: @test3(
define i32 @test3(i1 %bool, i32 %a) {
entry:
%cond = or i1 %bool, true
br i1 %cond, label %return, label %xpto
; technically reachable, but this malformed IR may appear as a result of constant propagation
xpto:
%select = select i1 %bool, i32 %a, i32 %select
%select2 = select i1 %bool, i32 %select2, i32 %a
%sum = add i32 %select, %select2
ret i32 %sum
return:
ret i32 7
}