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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -mergeicmps < %s | FileCheck %s
target triple = "x86_64-unknown-linux-gnu"
%"struct.a::c" = type { i32, i32*, i8* }
; The entry block cannot be merged as the comparison is not continuous.
; While it compares the highest address, it should not be moved after the
; other comparisons, as that would make the allocas non-dominating.
define i1 @test() {
; CHECK-LABEL: @test(
; CHECK-NEXT: "land.lhs.true+entry":
; CHECK-NEXT: [[H:%.*]] = alloca %"struct.a::c", align 8
; CHECK-NEXT: [[I:%.*]] = alloca %"struct.a::c", align 8
; CHECK-NEXT: call void @init(%"struct.a::c"* [[H]])
; CHECK-NEXT: call void @init(%"struct.a::c"* [[I]])
; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds %"struct.a::c", %"struct.a::c"* [[H]], i64 0, i32 1
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds %"struct.a::c", %"struct.a::c"* [[I]], i64 0, i32 1
; CHECK-NEXT: [[CSTR:%.*]] = bitcast i32** [[TMP0]] to i8*
; CHECK-NEXT: [[CSTR2:%.*]] = bitcast i32** [[TMP1]] to i8*
; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[CSTR]], i8* [[CSTR2]], i64 16)
; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[MEMCMP]], 0
; CHECK-NEXT: br i1 [[TMP2]], label [[LAND_RHS1:%.*]], label [[LAND_END:%.*]]
; CHECK: land.rhs1:
; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds %"struct.a::c", %"struct.a::c"* [[H]], i64 0, i32 0
; CHECK-NEXT: [[TMP4:%.*]] = getelementptr inbounds %"struct.a::c", %"struct.a::c"* [[I]], i64 0, i32 0
; CHECK-NEXT: [[TMP5:%.*]] = load i32, i32* [[TMP3]], align 4
; CHECK-NEXT: [[TMP6:%.*]] = load i32, i32* [[TMP4]], align 4
; CHECK-NEXT: [[TMP7:%.*]] = icmp eq i32 [[TMP5]], [[TMP6]]
; CHECK-NEXT: br label [[LAND_END]]
; CHECK: land.end:
; CHECK-NEXT: [[V9:%.*]] = phi i1 [ [[TMP7]], [[LAND_RHS1]] ], [ false, %"land.lhs.true+entry" ]
; CHECK-NEXT: ret i1 [[V9]]
;
entry:
%h = alloca %"struct.a::c", align 8
%i = alloca %"struct.a::c", align 8
call void @init(%"struct.a::c"* %h)
call void @init(%"struct.a::c"* %i)
%e = getelementptr inbounds %"struct.a::c", %"struct.a::c"* %h, i64 0, i32 2
%v3 = load i8*, i8** %e, align 8
%e2 = getelementptr inbounds %"struct.a::c", %"struct.a::c"* %i, i64 0, i32 2
%v4 = load i8*, i8** %e2, align 8
%cmp = icmp eq i8* %v3, %v4
br i1 %cmp, label %land.lhs.true, label %land.end
land.lhs.true: ; preds = %entry
%d = getelementptr inbounds %"struct.a::c", %"struct.a::c"* %h, i64 0, i32 1
%v5 = load i32*, i32** %d, align 8
%d3 = getelementptr inbounds %"struct.a::c", %"struct.a::c"* %i, i64 0, i32 1
%v6 = load i32*, i32** %d3, align 8
%cmp4 = icmp eq i32* %v5, %v6
br i1 %cmp4, label %land.rhs, label %land.end
land.rhs: ; preds = %land.lhs.true
%j = getelementptr inbounds %"struct.a::c", %"struct.a::c"* %h, i64 0, i32 0
%v7 = load i32, i32* %j, align 8
%j5 = getelementptr inbounds %"struct.a::c", %"struct.a::c"* %i, i64 0, i32 0
%v8 = load i32, i32* %j5, align 8
%cmp6 = icmp eq i32 %v7, %v8
br label %land.end
land.end: ; preds = %land.rhs, %land.lhs.true, %entry
%v9 = phi i1 [ false, %land.lhs.true ], [ false, %entry ], [ %cmp6, %land.rhs ]
ret i1 %v9
}
declare void @init(%"struct.a::c"*)
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