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35 lines
761 B
LLVM
35 lines
761 B
LLVM
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; Check that modelling of CC/CCRegs does not stop MachineCSE from
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; removing a compare. MachineCSE will not extend a live range of an
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; allocatable or reserved phys reg.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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declare void @bar(i8)
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; Check the low end of the CH range.
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define void @f1(i32 %lhs) {
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; CHECK-LABEL: BB#1:
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; CHECK-NOT: cijlh %r0, 1, .LBB0_3
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entry:
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%and188 = and i32 %lhs, 255
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%cmp189 = icmp ult i32 %and188, 2
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br i1 %cmp189, label %if.then.191, label %if.else.201
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if.then.191:
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%cmp194 = icmp eq i32 %and188, 1
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br i1 %cmp194, label %if.then.196, label %if.else.198
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if.then.196:
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call void @bar(i8 1);
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br label %if.else.201
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if.else.198:
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call void @bar(i8 0);
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br label %if.else.201
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if.else.201:
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ret void
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}
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