derek.holloway
7502bf64a4
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45 lines
1.1 KiB
LLVM
45 lines
1.1 KiB
LLVM
; Test f128 moves on z14.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 | FileCheck %s
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; VR-to-VR moves. Since f128s are passed by reference,
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; we need to force a copy by other means.
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define void @f1(ptr %x) {
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; CHECK-LABEL: f1:
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; CHECK: vlr
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; CHECK: vleig
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; CHECK: br %r14
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%val = load volatile fp128, ptr %x
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%t1 = bitcast fp128 %val to <2 x i64>
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%t2 = insertelement <2 x i64> %t1, i64 0, i32 0
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%res = bitcast <2 x i64> %t2 to fp128
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store volatile fp128 %res, ptr %x
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store volatile fp128 %val, ptr %x
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ret void
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}
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; Test 128-bit moves from GPRs to VRs. i128 isn't a legitimate type,
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; so this goes through memory.
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define void @f2(ptr %a, ptr %b) {
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; CHECK-LABEL: f2:
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; CHECK: vl
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; CHECK: vst
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; CHECK: br %r14
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%val = load i128, ptr %b
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%res = bitcast i128 %val to fp128
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store fp128 %res, ptr %a
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ret void
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}
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; Test 128-bit moves from VRs to GPRs, with the same restriction as f2.
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define void @f3(ptr %a, ptr %b) {
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; CHECK-LABEL: f3:
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; CHECK: vl
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; CHECK: vst
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%val = load fp128, ptr %a
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%res = bitcast fp128 %val to i128
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store i128 %res, ptr %b
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ret void
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}
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