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Imported Upstream version 6.0.0.172
Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd
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external/llvm/test/CodeGen/SystemZ/fp-move-12.ll
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external/llvm/test/CodeGen/SystemZ/fp-move-12.ll
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; Test moves between FPRs on z13.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
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; Test that we use LDR instead of LER.
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define float @f1(float %a, float %b) {
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; CHECK-LABEL: f1:
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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ret float %b
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}
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; Test f64 moves.
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define double @f2(double %a, double %b) {
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; CHECK-LABEL: f2:
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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ret double %b
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}
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; Test f128 moves. Since f128s are passed by reference, we need to force
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; a copy by other means.
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define void @f3(fp128 *%x) {
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; CHECK-LABEL: f3:
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; CHECK: lxr
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; CHECK: axbr
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; CHECK: br %r14
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%val = load volatile fp128 , fp128 *%x
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%sum = fadd fp128 %val, %val
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store volatile fp128 %sum, fp128 *%x
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store volatile fp128 %val, fp128 *%x
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ret void
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}
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