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https://github.com/c64scene-ar/llvm-6502.git
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e2d6f91d63
For some reason I never got around to adding these at the same time as the signed versions. No idea why. I'm not sure whether this SystemZII::BranchC* stuff is useful, or whether it should just be replaced with an "is normal" flag. I'll leave that for later though. There are some boundary conditions that can be tweaked, such as preferring unsigned comparisons for equality with [128, 256), and "<= 255" over "< 256", but again I'll leave those for a separate patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190930 91177308-0d34-0410-b5e6-96231b3b80d8
58 lines
1.1 KiB
LLVM
58 lines
1.1 KiB
LLVM
; Test indirect jumps.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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define i32 @f1(i32 %x, i32 %y, i32 %op) {
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; CHECK-LABEL: f1:
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; CHECK: ahi %r4, -1
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; CHECK: clijh %r4, 5,
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; CHECK: llgfr [[OP64:%r[0-5]]], %r4
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; CHECK: sllg [[INDEX:%r[1-5]]], [[OP64]], 3
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; CHECK: larl [[BASE:%r[1-5]]]
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; CHECK: lg [[TARGET:%r[1-5]]], 0([[BASE]],[[INDEX]])
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; CHECK: br [[TARGET]]
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entry:
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switch i32 %op, label %exit [
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i32 1, label %b.add
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i32 2, label %b.sub
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i32 3, label %b.and
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i32 4, label %b.or
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i32 5, label %b.xor
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i32 6, label %b.mul
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]
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b.add:
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%add = add i32 %x, %y
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br label %exit
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b.sub:
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%sub = sub i32 %x, %y
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br label %exit
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b.and:
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%and = and i32 %x, %y
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br label %exit
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b.or:
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%or = or i32 %x, %y
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br label %exit
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b.xor:
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%xor = xor i32 %x, %y
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br label %exit
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b.mul:
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%mul = mul i32 %x, %y
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br label %exit
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exit:
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%res = phi i32 [ %x, %entry ],
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[ %add, %b.add ],
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[ %sub, %b.sub ],
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[ %and, %b.and ],
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[ %or, %b.or ],
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[ %xor, %b.xor ],
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[ %mul, %b.mul ]
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ret i32 %res
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}
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