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Diffstat (limited to 'test/CodeGen/SystemZ/and-02.ll')
-rw-r--r-- | test/CodeGen/SystemZ/and-02.ll | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/test/CodeGen/SystemZ/and-02.ll b/test/CodeGen/SystemZ/and-02.ll new file mode 100644 index 0000000000000..a0fff81492ad9 --- /dev/null +++ b/test/CodeGen/SystemZ/and-02.ll @@ -0,0 +1,93 @@ +; Test 32-bit ANDs in which the second operand is constant. +; +; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s + +; Check the lowest useful NILF value. +define i32 @f1(i32 %a) { +; CHECK: f1: +; CHECK: nilf %r2, 1 +; CHECK: br %r14 + %and = and i32 %a, 1 + ret i32 %and +} + +; Check the highest 16-bit constant that must be handled by NILF. +define i32 @f2(i32 %a) { +; CHECK: f2: +; CHECK: nilf %r2, 65534 +; CHECK: br %r14 + %and = and i32 %a, 65534 + ret i32 %and +} + +; ANDs of 0xffff are zero extensions from i16. +define i32 @f3(i32 %a) { +; CHECK: f3: +; CHECK: llhr %r2, %r2 +; CHECK: br %r14 + %and = and i32 %a, 65535 + ret i32 %and +} + +; Check the next value up, which must again use NILF. +define i32 @f4(i32 %a) { +; CHECK: f4: +; CHECK: nilf %r2, 65536 +; CHECK: br %r14 + %and = and i32 %a, 65536 + ret i32 %and +} + +; Check the lowest useful NILH value. (LLHR is used instead of NILH of 0.) +define i32 @f5(i32 %a) { +; CHECK: f5: +; CHECK: nilh %r2, 1 +; CHECK: br %r14 + %and = and i32 %a, 131071 + ret i32 %and +} + +; Check the highest useful NILF value. +define i32 @f6(i32 %a) { +; CHECK: f6: +; CHECK: nilf %r2, 4294901758 +; CHECK: br %r14 + %and = and i32 %a, -65538 + ret i32 %and +} + +; Check the highest useful NILH value, which is one up from the above. +define i32 @f7(i32 %a) { +; CHECK: f7: +; CHECK: nilh %r2, 65534 +; CHECK: br %r14 + %and = and i32 %a, -65537 + ret i32 %and +} + +; Check the low end of the NILL range, which is one up again. +define i32 @f8(i32 %a) { +; CHECK: f8: +; CHECK: nill %r2, 0 +; CHECK: br %r14 + %and = and i32 %a, -65536 + ret i32 %and +} + +; Check the next value up. +define i32 @f9(i32 %a) { +; CHECK: f9: +; CHECK: nill %r2, 1 +; CHECK: br %r14 + %and = and i32 %a, -65535 + ret i32 %and +} + +; Check the highest useful NILL value. +define i32 @f10(i32 %a) { +; CHECK: f10: +; CHECK: nill %r2, 65534 +; CHECK: br %r14 + %and = and i32 %a, -2 + ret i32 %and +} |