diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/SystemZ/int-cmp-49.ll | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/test/CodeGen/SystemZ/int-cmp-49.ll b/test/CodeGen/SystemZ/int-cmp-49.ll new file mode 100644 index 0000000..83f18a2 --- /dev/null +++ b/test/CodeGen/SystemZ/int-cmp-49.ll @@ -0,0 +1,49 @@ +; That that we don't try to use z196 instructions on z10 for TMHH and TMHL. +; +; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 -O0 | FileCheck %s + +@g = global i32 0 + +; Check the lowest useful TMHL value. +define void @f1(i64 %a) { +; CHECK-LABEL: f1: +; CHECK-NOT: risblg +; CHECK-NOT: risbhg +; CHECK: tmhl {{%r[0-5]}}, 1 +; CHECK-NOT: risblg +; CHECK-NOT: risbhg +; CHECK: br %r14 +entry: + %and = and i64 %a, 4294967296 + %cmp = icmp eq i64 %and, 0 + br i1 %cmp, label %exit, label %store + +store: + store i32 1, i32 *@g + br label %exit + +exit: + ret void +} + +; Check the lowest useful TMHH value. +define void @f2(i64 %a) { +; CHECK-LABEL: f2: +; CHECK-NOT: risblg +; CHECK-NOT: risbhg +; CHECK: tmhh {{%r[0-5]}}, 1 +; CHECK-NOT: risblg +; CHECK-NOT: risbhg +; CHECK: br %r14 +entry: + %and = and i64 %a, 281474976710656 + %cmp = icmp ne i64 %and, 0 + br i1 %cmp, label %exit, label %store + +store: + store i32 1, i32 *@g + br label %exit + +exit: + ret void +} |