| ; RUN: llc -mtriple=s390x-linux-gnu -mcpu=z16 < %s | FileCheck %s |
| ; |
| ; Check that DAGCombiner doesn't crash in SystemZ combineExtract() |
| ; when handling EXTRACT_VECTOR_ELT with a vector of i1:s. |
| |
| define i32 @fun(i32 %arg) { |
| ; CHECK-LABEL: fun: |
| entry: |
| %cc = icmp eq i32 %arg, 0 |
| br label %loop |
| |
| loop: |
| %P = phi <128 x i1> [ zeroinitializer, %entry ], [ bitcast (<2 x i64> <i64 3, i64 3> to <128 x i1>), %loop ] |
| br i1 %cc, label %exit, label %loop |
| |
| exit: |
| %E = extractelement <128 x i1> %P, i64 0 |
| %Res = zext i1 %E to i32 |
| ret i32 %Res |
| } |
