xref: /llvm-project/llvm/test/CodeGen/PowerPC/memcmp-mergeexpand.ll (revision 60eca674b16a64957c43aba6a05fb32d2413ed72)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc -verify-machineinstrs -mcpu=pwr8 -mtriple=powerpc64le-unknown-gnu-linux  < %s | FileCheck %s -check-prefix=PPC64LE
3
4; This tests interaction between MergeICmp and expand-memcmp.
5
6%"struct.std::pair" = type { i32, i32 }
7
8define zeroext i1 @opeq1(
9; PPC64LE-LABEL: opeq1:
10; PPC64LE:       # %bb.0: # %"entry+land.rhs.i"
11; PPC64LE-NEXT:    ld 3, 0(3)
12; PPC64LE-NEXT:    ld 4, 0(4)
13; PPC64LE-NEXT:    cmpd 3, 4
14; PPC64LE-NEXT:    li 3, 0
15; PPC64LE-NEXT:    li 4, 1
16; PPC64LE-NEXT:    iseleq 3, 4, 3
17; PPC64LE-NEXT:    blr
18  ptr nocapture readonly dereferenceable(8) %a,
19  ptr nocapture readonly dereferenceable(8) %b) local_unnamed_addr #0 {
20entry:
21  %0 = load i32, ptr %a, align 4
22  %1 = load i32, ptr %b, align 4
23  %cmp.i = icmp eq i32 %0, %1
24  br i1 %cmp.i, label %land.rhs.i, label %opeq1.exit
25
26land.rhs.i:
27  %second.i = getelementptr inbounds %"struct.std::pair", ptr %a, i64 0, i32 1
28  %2 = load i32, ptr %second.i, align 4
29  %second2.i = getelementptr inbounds %"struct.std::pair", ptr %b, i64 0, i32 1
30  %3 = load i32, ptr %second2.i, align 4
31  %cmp3.i = icmp eq i32 %2, %3
32  br label %opeq1.exit
33
34opeq1.exit:
35  %4 = phi i1 [ false, %entry ], [ %cmp3.i, %land.rhs.i ]
36  ret i1 %4
37}
38
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40