llvm-project/llvm/test/Transforms/InstCombine/2002-08-02-CastTest.ll

12 lines
369 B
LLVM

; This testcase is incorrectly getting completely eliminated. There should be
; SOME instruction named %c here, even if it's a bitwise and.
;
; RUN: opt < %s -instcombine -S | grep %c
;
define i64 @test3(i64 %A) {
%c1 = trunc i64 %A to i8 ; <i8> [#uses=1]
%c2 = zext i8 %c1 to i64 ; <i64> [#uses=1]
ret i64 %c2
}