derek.holloway
7502bf64a4
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33 lines
1.1 KiB
LLVM
33 lines
1.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; Test high-part vector multiplication on z17
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z17 | FileCheck %s
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; Test a v2i64 unsigned high-part multiplication.
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define <2 x i64> @f1(<2 x i64> %val1, <2 x i64> %val2) {
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; CHECK-LABEL: f1:
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; CHECK: # %bb.0:
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; CHECK-NEXT: vmlhg %v24, %v24, %v26
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; CHECK-NEXT: br %r14
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%zext1 = zext <2 x i64> %val1 to <2 x i128>
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%zext2 = zext <2 x i64> %val2 to <2 x i128>
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%mulx = mul <2 x i128> %zext1, %zext2
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%highx = lshr <2 x i128> %mulx, splat(i128 64)
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%high = trunc <2 x i128> %highx to <2 x i64>
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ret <2 x i64> %high
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}
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; Test a v2i64 signed high-part multiplication.
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define <2 x i64> @f2(<2 x i64> %val1, <2 x i64> %val2) {
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; CHECK-LABEL: f2:
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; CHECK: # %bb.0:
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; CHECK-NEXT: vmhg %v24, %v24, %v26
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; CHECK-NEXT: br %r14
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%sext1 = sext <2 x i64> %val1 to <2 x i128>
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%sext2 = sext <2 x i64> %val2 to <2 x i128>
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%mulx = mul <2 x i128> %sext1, %sext2
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%highx = lshr <2 x i128> %mulx, splat(i128 64)
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%high = trunc <2 x i128> %highx to <2 x i64>
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ret <2 x i64> %high
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}
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