5080a0251f
DAG combiner already does this transformation, but in some cases it does not have a chance because either CodeGenPrepare or SelectionDAGBuilder move icmp to a different basic block. https://alive2.llvm.org/ce/z/ARzh99 Fixes #94829 Pull Request: https://github.com/llvm/llvm-project/pull/102731
86 lines
3.5 KiB
LLVM
86 lines
3.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt -p 'require<profile-summary>,function(codegenprepare)' -S %s \
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; RUN: | FileCheck %s --check-prefix=SLOW
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; RUN: opt -p 'require<profile-summary>,function(codegenprepare)' -S --mattr=+zvbb %s \
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; RUN: | FileCheck %s --check-prefix=FAST
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; REQUIRES: riscv-registered-target
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target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128"
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target triple = "riscv64"
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define <4 x i1> @test_ult_2(<4 x i64> %x) {
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; SLOW-LABEL: define <4 x i1> @test_ult_2(
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; SLOW-SAME: <4 x i64> [[X:%.*]]) {
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; SLOW-NEXT: [[TMP0:%.*]] = add <4 x i64> [[X]], splat (i64 -1)
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; SLOW-NEXT: [[TMP1:%.*]] = and <4 x i64> [[X]], [[TMP0]]
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; SLOW-NEXT: [[CMP1:%.*]] = icmp eq <4 x i64> [[TMP1]], zeroinitializer
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; SLOW-NEXT: ret <4 x i1> [[CMP1]]
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;
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; FAST-LABEL: define <4 x i1> @test_ult_2(
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; FAST-SAME: <4 x i64> [[X:%.*]]) #[[ATTR0:[0-9]+]] {
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; FAST-NEXT: [[CTPOP:%.*]] = call <4 x i64> @llvm.ctpop.v4i64(<4 x i64> [[X]])
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; FAST-NEXT: [[CMP1:%.*]] = icmp ult <4 x i64> [[CTPOP]], splat (i64 2)
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; FAST-NEXT: ret <4 x i1> [[CMP1]]
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;
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%ctpop = call <4 x i64> @llvm.ctpop(<4 x i64> %x)
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%cmp = icmp ult <4 x i64> %ctpop, splat (i64 2)
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ret <4 x i1> %cmp
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}
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define <4 x i1> @test_ugt_1(<4 x i64> %x) {
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; SLOW-LABEL: define <4 x i1> @test_ugt_1(
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; SLOW-SAME: <4 x i64> [[X:%.*]]) {
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; SLOW-NEXT: [[TMP0:%.*]] = add <4 x i64> [[X]], splat (i64 -1)
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; SLOW-NEXT: [[TMP1:%.*]] = and <4 x i64> [[X]], [[TMP0]]
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; SLOW-NEXT: [[CMP1:%.*]] = icmp ne <4 x i64> [[TMP1]], zeroinitializer
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; SLOW-NEXT: ret <4 x i1> [[CMP1]]
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;
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; FAST-LABEL: define <4 x i1> @test_ugt_1(
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; FAST-SAME: <4 x i64> [[X:%.*]]) #[[ATTR0]] {
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; FAST-NEXT: [[CTPOP:%.*]] = call <4 x i64> @llvm.ctpop.v4i64(<4 x i64> [[X]])
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; FAST-NEXT: [[CMP1:%.*]] = icmp ugt <4 x i64> [[CTPOP]], splat (i64 1)
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; FAST-NEXT: ret <4 x i1> [[CMP1]]
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;
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%ctpop = call <4 x i64> @llvm.ctpop(<4 x i64> %x)
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%cmp = icmp ugt <4 x i64> %ctpop, splat (i64 1)
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ret <4 x i1> %cmp
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}
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define <4 x i1> @test_eq_1(<4 x i64> %x) {
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; SLOW-LABEL: define <4 x i1> @test_eq_1(
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; SLOW-SAME: <4 x i64> [[X:%.*]]) {
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; SLOW-NEXT: [[TMP0:%.*]] = add <4 x i64> [[X]], splat (i64 -1)
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; SLOW-NEXT: [[TMP1:%.*]] = xor <4 x i64> [[X]], [[TMP0]]
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; SLOW-NEXT: [[TMP2:%.*]] = icmp ugt <4 x i64> [[TMP1]], [[TMP0]]
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; SLOW-NEXT: ret <4 x i1> [[TMP2]]
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;
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; FAST-LABEL: define <4 x i1> @test_eq_1(
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; FAST-SAME: <4 x i64> [[X:%.*]]) #[[ATTR0]] {
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; FAST-NEXT: [[CTPOP:%.*]] = call <4 x i64> @llvm.ctpop.v4i64(<4 x i64> [[X]])
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; FAST-NEXT: [[CMP1:%.*]] = icmp eq <4 x i64> [[CTPOP]], splat (i64 1)
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; FAST-NEXT: ret <4 x i1> [[CMP1]]
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;
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%ctpop = call <4 x i64> @llvm.ctpop(<4 x i64> %x)
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%cmp = icmp eq <4 x i64> %ctpop, splat (i64 1)
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ret <4 x i1> %cmp
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}
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define <4 x i1> @test_ne_1(<4 x i64> %x) {
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; SLOW-LABEL: define <4 x i1> @test_ne_1(
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; SLOW-SAME: <4 x i64> [[X:%.*]]) {
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; SLOW-NEXT: [[TMP0:%.*]] = add <4 x i64> [[X]], splat (i64 -1)
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; SLOW-NEXT: [[TMP1:%.*]] = xor <4 x i64> [[X]], [[TMP0]]
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; SLOW-NEXT: [[TMP2:%.*]] = icmp ule <4 x i64> [[TMP1]], [[TMP0]]
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; SLOW-NEXT: ret <4 x i1> [[TMP2]]
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;
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; FAST-LABEL: define <4 x i1> @test_ne_1(
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; FAST-SAME: <4 x i64> [[X:%.*]]) #[[ATTR0]] {
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; FAST-NEXT: [[CTPOP:%.*]] = call <4 x i64> @llvm.ctpop.v4i64(<4 x i64> [[X]])
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; FAST-NEXT: [[CMP1:%.*]] = icmp ne <4 x i64> [[CTPOP]], splat (i64 1)
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; FAST-NEXT: ret <4 x i1> [[CMP1]]
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;
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%ctpop = call <4 x i64> @llvm.ctpop(<4 x i64> %x)
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%cmp = icmp ne <4 x i64> %ctpop, splat (i64 1)
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ret <4 x i1> %cmp
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}
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