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Diffstat (limited to 'test/CodeGen/SystemZ/shift-04.ll')
| -rw-r--r-- | test/CodeGen/SystemZ/shift-04.ll | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/CodeGen/SystemZ/shift-04.ll b/test/CodeGen/SystemZ/shift-04.ll index 04b39d002c..0cd32391ed 100644 --- a/test/CodeGen/SystemZ/shift-04.ll +++ b/test/CodeGen/SystemZ/shift-04.ll @@ -187,3 +187,32 @@ define i32 @f14(i32 %a, i32 *%ptr) { %or = or i32 %parta, %partb ret i32 %or } + +; Check another form of f5, which is the one produced by running f5 through +; instcombine. +define i32 @f15(i32 %a, i32 %amt) { +; CHECK-LABEL: f15: +; CHECK: rll %r2, %r2, 10(%r3) +; CHECK: br %r14 + %add = add i32 %amt, 10 + %sub = sub i32 22, %amt + %parta = shl i32 %a, %add + %partb = lshr i32 %a, %sub + %or = or i32 %parta, %partb + ret i32 %or +} + +; Likewise for f7. +define i32 @f16(i32 %a, i64 %amt) { +; CHECK-LABEL: f16: +; CHECK: rll %r2, %r2, 10(%r3) +; CHECK: br %r14 + %add = add i64 %amt, 10 + %sub = sub i64 22, %amt + %addtrunc = trunc i64 %add to i32 + %subtrunc = trunc i64 %sub to i32 + %parta = shl i32 %a, %addtrunc + %partb = lshr i32 %a, %subtrunc + %or = or i32 %parta, %partb + ret i32 %or +} |