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Diffstat (limited to 'test/CodeGen/SystemZ/cond-move-01.ll')
| -rw-r--r-- | test/CodeGen/SystemZ/cond-move-01.ll | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/test/CodeGen/SystemZ/cond-move-01.ll b/test/CodeGen/SystemZ/cond-move-01.ll new file mode 100644 index 000000000000..088dee0232ea --- /dev/null +++ b/test/CodeGen/SystemZ/cond-move-01.ll @@ -0,0 +1,48 @@ +; Test LOCR and LOCGR. +; +; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s + +; Test LOCR. +define i32 @f1(i32 %a, i32 %b, i32 %limit) { +; CHECK-LABEL: f1: +; CHECK: clfi %r4, 42 +; CHECK: locrhe %r2, %r3 +; CHECK: br %r14 + %cond = icmp ult i32 %limit, 42 + %res = select i1 %cond, i32 %a, i32 %b + ret i32 %res +} + +; Test LOCGR. +define i64 @f2(i64 %a, i64 %b, i64 %limit) { +; CHECK-LABEL: f2: +; CHECK: clgfi %r4, 42 +; CHECK: locgrhe %r2, %r3 +; CHECK: br %r14 + %cond = icmp ult i64 %limit, 42 + %res = select i1 %cond, i64 %a, i64 %b + ret i64 %res +} + +; Test LOCR in a case that could use COMPARE AND BRANCH. We prefer using +; LOCR if possible. +define i32 @f3(i32 %a, i32 %b, i32 %limit) { +; CHECK-LABEL: f3: +; CHECK: chi %r4, 42 +; CHECK: locrlh %r2, %r3 +; CHECK: br %r14 + %cond = icmp eq i32 %limit, 42 + %res = select i1 %cond, i32 %a, i32 %b + ret i32 %res +} + +; ...and again for LOCGR. +define i64 @f4(i64 %a, i64 %b, i64 %limit) { +; CHECK-LABEL: f4: +; CHECK: cghi %r4, 42 +; CHECK: locgrlh %r2, %r3 +; CHECK: br %r14 + %cond = icmp eq i64 %limit, 42 + %res = select i1 %cond, i64 %a, i64 %b + ret i64 %res +} |
