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view llvm/test/Transforms/CodeGenPrepare/X86/optimizeSelect-DT.ll @ 252:1f2b6ac9f198 llvm-original
LLVM16-1
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Fri, 18 Aug 2023 09:04:13 +0900 |
parents | 0572611fdcc8 |
children |
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -S -codegenprepare < %s | FileCheck %s target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" define i1 @PR41004(i32 %x, i32 %y, i32 %t1) { ; CHECK-LABEL: @PR41004( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[MUL_FR:%.*]] = freeze i32 [[Y:%.*]] ; CHECK-NEXT: [[T0:%.*]] = icmp eq i32 [[MUL_FR]], 1 ; CHECK-NEXT: br i1 [[T0]], label [[SELECT_TRUE_SINK:%.*]], label [[SELECT_END:%.*]] ; CHECK: select.true.sink: ; CHECK-NEXT: [[REM:%.*]] = srem i32 [[X:%.*]], 2 ; CHECK-NEXT: br label [[SELECT_END]] ; CHECK: select.end: ; CHECK-NEXT: [[MUL:%.*]] = phi i32 [ [[REM]], [[SELECT_TRUE_SINK]] ], [ 0, [[ENTRY:%.*]] ] ; CHECK-NEXT: [[USUB:%.*]] = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 [[T1:%.*]], i32 1) ; CHECK-NEXT: [[NEG:%.*]] = extractvalue { i32, i1 } [[USUB]], 0 ; CHECK-NEXT: [[TOBOOL:%.*]] = extractvalue { i32, i1 } [[USUB]], 1 ; CHECK-NEXT: [[ADD:%.*]] = add i32 [[NEG]], [[MUL]] ; CHECK-NEXT: ret i1 [[TOBOOL]] ; entry: %rem = srem i32 %x, 2 %t0 = icmp eq i32 %y, 1 %mul = select i1 %t0, i32 %rem, i32 0 %neg = add i32 %t1, -1 %add = add i32 %neg, %mul br label %if if: %tobool = icmp eq i32 %t1, 0 ret i1 %tobool }