1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --force-update 2; RUN: opt < %s -mtriple=x86_64-unknown-unknown -passes=mergeicmps -verify-dom-info -S 2>&1 | FileCheck %s 3 4; 8-byte int and 8-byte pointer should merge into a 16-byte memcmp. 5 6%struct.outer = type { i64, ptr } 7%struct.inner = type { i32, i32, i32 } 8 9; Function Attrs: nounwind uwtable 10define i1 @test(ptr align 8 dereferenceable(16) %o1, ptr align 8 dereferenceable(116) %o2) local_unnamed_addr nofree nosync { 11; CHECK-LABEL: @test( 12; CHECK-NEXT: "entry+if.then": 13; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(ptr [[O1:%.*]], ptr [[O2:%.*]], i64 16) 14; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[MEMCMP]], 0 15; CHECK-NEXT: br label [[IF_END5:%.*]] 16; CHECK: if.end5: 17; CHECK-NEXT: ret i1 [[TMP2]] 18; 19entry: 20 %0 = load i64, ptr %o1, align 8 21 %1 = load i64, ptr %o2, align 8 22 %cmp = icmp eq i64 %0, %1 23 br i1 %cmp, label %if.then, label %if.end5 24 25if.then: ; preds = %entry 26 %p2 = getelementptr inbounds %struct.outer, ptr %o1, i64 0, i32 1 27 %2 = load ptr, ptr %p2, align 8 28 %p22 = getelementptr inbounds %struct.outer, ptr %o2, i64 0, i32 1 29 %3 = load ptr, ptr %p22, align 8 30 %cmp3 = icmp eq ptr %2, %3 31 br label %if.end5 32 33if.end5: ; preds = %if.then, %entry 34 %rez.0 = phi i1 [ %cmp3, %if.then ], [ false, %entry ] 35 ret i1 %rez.0 36} 37; Function Attrs: argmemonly nounwind 38declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #1 39 40; Function Attrs: argmemonly nounwind 41declare void @llvm.lifetime.end.p0(i64, ptr nocapture) #1 42 43attributes #0 = { nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } 44attributes #1 = { argmemonly nounwind } 45attributes #2 = { nounwind } 46