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The z13 vector facility includes some instructions that operate only on the high f64 in a v2f64, effectively extending the FP register set from 16 to 32 registers. It's still better to use the old instructions if the operands happen to fit though, since the older instructions have a shorter encoding. Based on a patch by Richard Sandiford. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236524 91177308-0d34-0410-b5e6-96231b3b80d8
119 lines
3.2 KiB
LLVM
119 lines
3.2 KiB
LLVM
; Test v2f64 rounding.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
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declare double @llvm.rint.f64(double)
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declare double @llvm.nearbyint.f64(double)
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declare double @llvm.floor.f64(double)
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declare double @llvm.ceil.f64(double)
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declare double @llvm.trunc.f64(double)
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declare double @llvm.round.f64(double)
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declare <2 x double> @llvm.rint.v2f64(<2 x double>)
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declare <2 x double> @llvm.nearbyint.v2f64(<2 x double>)
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declare <2 x double> @llvm.floor.v2f64(<2 x double>)
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declare <2 x double> @llvm.ceil.v2f64(<2 x double>)
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declare <2 x double> @llvm.trunc.v2f64(<2 x double>)
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declare <2 x double> @llvm.round.v2f64(<2 x double>)
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define <2 x double> @f1(<2 x double> %val) {
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; CHECK-LABEL: f1:
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; CHECK: vfidb %v24, %v24, 0, 0
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; CHECK: br %r14
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%res = call <2 x double> @llvm.rint.v2f64(<2 x double> %val)
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ret <2 x double> %res
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}
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define <2 x double> @f2(<2 x double> %val) {
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; CHECK-LABEL: f2:
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; CHECK: vfidb %v24, %v24, 4, 0
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; CHECK: br %r14
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%res = call <2 x double> @llvm.nearbyint.v2f64(<2 x double> %val)
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ret <2 x double> %res
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}
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define <2 x double> @f3(<2 x double> %val) {
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; CHECK-LABEL: f3:
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; CHECK: vfidb %v24, %v24, 4, 7
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; CHECK: br %r14
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%res = call <2 x double> @llvm.floor.v2f64(<2 x double> %val)
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ret <2 x double> %res
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}
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define <2 x double> @f4(<2 x double> %val) {
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; CHECK-LABEL: f4:
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; CHECK: vfidb %v24, %v24, 4, 6
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; CHECK: br %r14
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%res = call <2 x double> @llvm.ceil.v2f64(<2 x double> %val)
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ret <2 x double> %res
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}
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define <2 x double> @f5(<2 x double> %val) {
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; CHECK-LABEL: f5:
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; CHECK: vfidb %v24, %v24, 4, 5
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; CHECK: br %r14
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%res = call <2 x double> @llvm.trunc.v2f64(<2 x double> %val)
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ret <2 x double> %res
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}
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define <2 x double> @f6(<2 x double> %val) {
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; CHECK-LABEL: f6:
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; CHECK: vfidb %v24, %v24, 4, 1
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; CHECK: br %r14
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%res = call <2 x double> @llvm.round.v2f64(<2 x double> %val)
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ret <2 x double> %res
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}
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define double @f7(<2 x double> %val) {
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; CHECK-LABEL: f7:
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; CHECK: wfidb %f0, %v24, 0, 0
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; CHECK: br %r14
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%scalar = extractelement <2 x double> %val, i32 0
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%res = call double @llvm.rint.f64(double %scalar)
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ret double %res
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}
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define double @f8(<2 x double> %val) {
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; CHECK-LABEL: f8:
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; CHECK: wfidb %f0, %v24, 4, 0
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; CHECK: br %r14
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%scalar = extractelement <2 x double> %val, i32 0
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%res = call double @llvm.nearbyint.f64(double %scalar)
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ret double %res
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}
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define double @f9(<2 x double> %val) {
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; CHECK-LABEL: f9:
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; CHECK: wfidb %f0, %v24, 4, 7
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; CHECK: br %r14
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%scalar = extractelement <2 x double> %val, i32 0
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%res = call double @llvm.floor.f64(double %scalar)
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ret double %res
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}
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define double @f10(<2 x double> %val) {
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; CHECK-LABEL: f10:
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; CHECK: wfidb %f0, %v24, 4, 6
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; CHECK: br %r14
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%scalar = extractelement <2 x double> %val, i32 0
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%res = call double @llvm.ceil.f64(double %scalar)
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ret double %res
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}
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define double @f11(<2 x double> %val) {
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; CHECK-LABEL: f11:
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; CHECK: wfidb %f0, %v24, 4, 5
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; CHECK: br %r14
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%scalar = extractelement <2 x double> %val, i32 0
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%res = call double @llvm.trunc.f64(double %scalar)
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ret double %res
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}
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define double @f12(<2 x double> %val) {
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; CHECK-LABEL: f12:
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; CHECK: wfidb %f0, %v24, 4, 1
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; CHECK: br %r14
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%scalar = extractelement <2 x double> %val, i32 0
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%res = call double @llvm.round.f64(double %scalar)
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ret double %res
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}
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