llvm-mirror/test/Transforms/InstCombine/2008-07-13-DivZero.ll
Dan Gohman 205b641954 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.

llvm-svn: 81537
2009-09-11 18:01:28 +00:00

17 lines
624 B
LLVM

; RUN: opt < %s -instcombine -S | grep {lshr.*3}
; RUN: opt < %s -instcombine -S | grep {call .*%cond}
; PR2506
; We can simplify the operand of udiv to '8', but not the operand to the
; call. If the callee never returns, we can't assume the div is reachable.
define i32 @a(i32 %x, i32 %y) {
entry:
%tobool = icmp ne i32 %y, 0 ; <i1> [#uses=1]
%cond = select i1 %tobool, i32 8, i32 0 ; <i32> [#uses=2]
%call = call i32 @b( i32 %cond ) ; <i32> [#uses=0]
%div = udiv i32 %x, %cond ; <i32> [#uses=1]
ret i32 %div
}
declare i32 @b(i32)