a1710eb3cd
The LIT test cases were migrated with the script provided by Nikita Popov. No manual changes were made. Committed without review since no functional changes, after consultation with uweigand.
47 lines
947 B
LLVM
47 lines
947 B
LLVM
; Test SystemZInstrInfo::analyzeBranch and SystemZInstrInfo::insertBranch.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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declare void @foo() noreturn
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; Check a case where a separate branch is needed and where the original
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; order should be reversed.
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define i32 @f1(i32 %a, ptr %bptr) {
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; CHECK-LABEL: f1:
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; CHECK: cl %r2, 0(%r3)
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; CHECK: jl .L[[LABEL:.*]]
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; CHECK: br %r14
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; CHECK: .L[[LABEL]]:
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; CHECK: brasl %r14, foo@PLT
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entry:
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%b = load i32, ptr %bptr
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%cmp = icmp ult i32 %a, %b
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br i1 %cmp, label %callit, label %return
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callit:
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call void @foo()
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unreachable
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return:
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ret i32 1
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}
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; Same again with a fused compare and branch.
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define i32 @f2(i32 %a) {
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; CHECK-LABEL: f2:
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; CHECK: cije %r2, 0, .L[[LABEL:.*]]
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; CHECK: br %r14
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; CHECK: .L[[LABEL]]:
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; CHECK: brasl %r14, foo@PLT
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entry:
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%cmp = icmp eq i32 %a, 0
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br i1 %cmp, label %callit, label %return
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callit:
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call void @foo()
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unreachable
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return:
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ret i32 1
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}
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