llvm-6502/test/Transforms/LoopVectorize/lcssa-crash.ll
Bill Wendling da897215b2 Merging r182656:
------------------------------------------------------------------------
r182656 | d0k | 2013-05-24 11:05:35 -0700 (Fri, 24 May 2013) | 3 lines

LoopVectorize: LoopSimplify can't canonicalize loops with an indirectbr in it, don't assert on those cases.

Fixes PR16139.
------------------------------------------------------------------------


git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_33@182785 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-28 18:37:09 +00:00

41 lines
1.0 KiB
LLVM

; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=4
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
%type1 = type { %type2 }
%type2 = type { [0 x i8*], i8**, i32, i32, i32 }
define void @test() nounwind uwtable align 2 {
br label %for.body.lr.ph.i.i.i
for.body.lr.ph.i.i.i:
br label %for.body.i.i.i
for.body.i.i.i:
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc.i.i.i ], [ 0, %for.body.lr.ph.i.i.i ]
br label %for.inc.i.i.i
for.inc.i.i.i:
%indvars.iv.next = add i64 %indvars.iv, 1
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
%exitcond = icmp ne i32 %lftr.wideiv, undef
br i1 %exitcond, label %for.body.i.i.i, label %for.end.i.i.i
for.end.i.i.i:
%lcssa = phi %type1* [ undef, %for.inc.i.i.i ]
unreachable
}
; PR16139
define void @test2(i8* %x) {
entry:
indirectbr i8* %x, [ label %L0, label %L1 ]
L0:
br label %L0
L1:
ret void
}