forked from OSchip/llvm-project
57 lines
2.6 KiB
LLVM
57 lines
2.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -mergeicmps -mtriple=x86_64-unknown-unknown -S | FileCheck %s
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%"struct.std::pair" = type { i32, i32, i32, i32 }
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; The entry block is part of the chain. It however can not be merged. We need to make the
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; first comparison block in the chain the new entry block of the function.
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define zeroext i1 @opeq1(
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; CHECK-LABEL: @opeq1(
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; CHECK-NEXT: br label [[LAND_RHS_I:%.*]]
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; CHECK: land.rhs.i:
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; CHECK-NEXT: [[SECOND_I:%.*]] = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %a, i64 0, i32 0
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; CHECK-NEXT: [[SECOND2_I:%.*]] = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %b, i64 0, i32 0
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; CHECK-NEXT: [[CSTR:%.*]] = bitcast i32* [[SECOND_I]] to i8*
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; CHECK-NEXT: [[CSTR1:%.*]] = bitcast i32* [[SECOND2_I]] to i8*
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; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[CSTR]], i8* [[CSTR1]], i64 8)
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;
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%"struct.std::pair"* nocapture readonly dereferenceable(16) %a,
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%"struct.std::pair"* nocapture readonly dereferenceable(16) %b) local_unnamed_addr #0 {
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entry:
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%first.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %a, i64 0, i32 3
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%0 = load i32, i32* %first.i, align 4
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%first1.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %b, i64 0, i32 2
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%1 = load i32, i32* %first1.i, align 4
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%cmp.i = icmp eq i32 %0, %1
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br i1 %cmp.i, label %land.rhs.i, label %opeq1.exit
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land.rhs.i:
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%second.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %a, i64 0, i32 0
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%2 = load i32, i32* %second.i, align 4
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%second2.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %b, i64 0, i32 0
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%3 = load i32, i32* %second2.i, align 4
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%cmp3.i = icmp eq i32 %2, %3
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br i1 %cmp3.i, label %land.rhs.i.2, label %opeq1.exit
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land.rhs.i.2:
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%third.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %a, i64 0, i32 1
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%4 = load i32, i32* %third.i, align 4
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%third2.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %b, i64 0, i32 1
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%5 = load i32, i32* %third2.i, align 4
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%cmp4.i = icmp eq i32 %4, %5
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br i1 %cmp4.i, label %land.rhs.i.3, label %opeq1.exit
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land.rhs.i.3:
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%fourth.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %a, i64 0, i32 3
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%6 = load i32, i32* %fourth.i, align 4
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%fourth2.i = getelementptr inbounds %"struct.std::pair", %"struct.std::pair"* %b, i64 0, i32 3
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%7 = load i32, i32* %fourth2.i, align 4
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%cmp5.i = icmp eq i32 %6, %7
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br label %opeq1.exit
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opeq1.exit:
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%8 = phi i1 [ false, %entry ], [ false, %land.rhs.i], [ false, %land.rhs.i.2 ], [ %cmp5.i, %land.rhs.i.3 ]
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ret i1 %8
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}
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