xref: /llvm-project/llvm/test/Transforms/CodeGenPrepare/X86/optimizeSelect-DT.ll (revision f1ec0d12bb0843f0deab83ef2b5cf1339cbc4f0b)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -S -passes='require<profile-summary>,function(codegenprepare)' < %s | FileCheck %s
3
4target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
5target triple = "x86_64-unknown-linux-gnu"
6
7define i1 @PR41004(i32 %x, i32 %y, i32 %t1) {
8; CHECK-LABEL: @PR41004(
9; CHECK-NEXT:  entry:
10; CHECK-NEXT:    [[MUL_FR:%.*]] = freeze i32 [[Y:%.*]]
11; CHECK-NEXT:    [[T0:%.*]] = icmp eq i32 [[MUL_FR]], 1
12; CHECK-NEXT:    br i1 [[T0]], label [[SELECT_TRUE_SINK:%.*]], label [[SELECT_END:%.*]]
13; CHECK:       select.true.sink:
14; CHECK-NEXT:    [[REM:%.*]] = srem i32 [[X:%.*]], 2
15; CHECK-NEXT:    br label [[SELECT_END]]
16; CHECK:       select.end:
17; CHECK-NEXT:    [[MUL:%.*]] = phi i32 [ [[REM]], [[SELECT_TRUE_SINK]] ], [ 0, [[ENTRY:%.*]] ]
18; CHECK-NEXT:    [[USUB:%.*]] = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 [[T1:%.*]], i32 1)
19; CHECK-NEXT:    [[NEG:%.*]] = extractvalue { i32, i1 } [[USUB]], 0
20; CHECK-NEXT:    [[TOBOOL:%.*]] = extractvalue { i32, i1 } [[USUB]], 1
21; CHECK-NEXT:    [[ADD:%.*]] = add i32 [[NEG]], [[MUL]]
22; CHECK-NEXT:    ret i1 [[TOBOOL]]
23;
24entry:
25  %rem = srem i32 %x, 2
26  %t0 = icmp eq i32 %y, 1
27  %mul = select i1 %t0, i32 %rem, i32 0
28  %neg = add i32 %t1, -1
29  %add = add i32 %neg, %mul
30  br label %if
31
32if:
33  %tobool = icmp eq i32 %t1, 0
34  ret i1 %tobool
35}
36