xref: /llvm-project/llvm/test/CodeGen/SystemZ/int-cmp-59.ll (revision a1710eb3cd5823c5d14899112ca3086acbdbe9cb)
1; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 -O3 -stop-before=finalize-isel \
2; RUN:   | FileCheck %s
3;
4; Check that an i1 in memory used in a comparison is loaded correctly.
5
6@bPtr = external dso_local local_unnamed_addr global ptr, align 8
7@c = external hidden unnamed_addr global i1, align 4
8
9define i64 @main() {
10; CHECK-LABEL: bb.0.entry:
11; CHECK: %1:addr64bit = LARL @c
12; CHECK: %2:gr64bit = LLGC %1, 0, $noreg :: (dereferenceable load (s8) from @c, align 4)
13; CHECK-NEXT: %4:gr64bit = IMPLICIT_DEF
14; CHECK-NEXT: %3:gr64bit = RISBGN %4, killed %2, 63, 191, 0
15; CHECK-NEXT: %5:gr64bit = LCGR killed %3, implicit-def dead $cc
16; CHECK-NEXT: CGHI killed %5, 1, implicit-def $cc
17entry:
18  %0 = load ptr, ptr @bPtr
19  store i1 true, ptr @c
20  store i32 8, ptr %0
21  %.b = load i1, ptr @c
22  %conv.i = select i1 %.b, i64 1, i64 3
23  %div.i = sdiv i64 -1, %conv.i
24  %cmp.i = icmp eq i64 %div.i, 1
25  %conv2.i = zext i1 %cmp.i to i64
26  ret i64 %conv2.i
27}
28
29