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Exploit native VSX rounding instruction, x(v|s)r(d|s)pic, which does rounding using current rounding mode. According to C standard library, rint may raise INEXACT exception while nearbyint won't. Reviewed By: lkail Differential Revision: https://reviews.llvm.org/D72685
56 lines
1.7 KiB
LLVM
56 lines
1.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mcpu=pwr9 -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr \
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; RUN: -mtriple=powerpc64le-unknown-unknown -verify-machineinstrs < %s | \
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; RUN: FileCheck %s --check-prefix=P9
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; RUN: llc -mcpu=pwr8 -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr \
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; RUN: -mtriple=powerpc64le-unknown-unknown -verify-machineinstrs < %s | \
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; RUN: FileCheck %s
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; RUN: llc -mcpu=pwr8 -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr \
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; RUN: -mtriple=powerpc64le-unknown-unknown -verify-machineinstrs < %s \
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; RUN: --enable-unsafe-fp-math | FileCheck %s --check-prefix=FAST
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define dso_local <2 x double> @test_rint_v2f64(<2 x double> %d) local_unnamed_addr {
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; P9-LABEL: test_rint_v2f64:
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; P9: # %bb.0: # %entry
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; P9-NEXT: xvrdpic v2, v2
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; P9-NEXT: blr
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;
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; CHECK-LABEL: test_rint_v2f64:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: xvrdpic v2, v2
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; CHECK-NEXT: blr
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;
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; FAST-LABEL: test_rint_v2f64:
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; FAST: # %bb.0: # %entry
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; FAST-NEXT: xvrdpic v2, v2
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; FAST-NEXT: blr
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entry:
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%0 = tail call <2 x double> @llvm.rint.v2f64(<2 x double> %d)
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ret <2 x double> %0
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}
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declare <2 x double> @llvm.rint.v2f64(<2 x double>)
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define dso_local <4 x float> @test_rint_v4f32(<4 x float> %d) local_unnamed_addr {
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; P9-LABEL: test_rint_v4f32:
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; P9: # %bb.0: # %entry
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; P9-NEXT: xvrspic v2, v2
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; P9-NEXT: blr
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;
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; CHECK-LABEL: test_rint_v4f32:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: xvrspic v2, v2
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; CHECK-NEXT: blr
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;
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; FAST-LABEL: test_rint_v4f32:
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; FAST: # %bb.0: # %entry
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; FAST-NEXT: xvrspic v2, v2
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; FAST-NEXT: blr
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entry:
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%0 = tail call <4 x float> @llvm.rint.v4f32(<4 x float> %d)
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ret <4 x float> %0
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}
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declare <4 x float> @llvm.rint.v4f32(<4 x float>)
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