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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=mergeicmps < %s | FileCheck %s
; This does not use a GEP for the zero-offset comparison and requires a
; split for other work.
target triple = "x86_64-grtev4-linux-gnu"
declare void @other_work()
define i1 @test(ptr dereferenceable(2) %arg, ptr dereferenceable(2) %arg1) {
; CHECK-LABEL: @test(
; CHECK-NEXT: "if+entry":
; CHECK-NEXT: call void @other_work()
; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(ptr [[ARG:%.*]], ptr [[ARG1:%.*]], i64 2)
; CHECK-NEXT: [[TMP0:%.*]] = icmp eq i32 [[MEMCMP]], 0
; CHECK-NEXT: br label [[JOIN:%.*]]
; CHECK: join:
; CHECK-NEXT: ret i1 [[TMP0]]
;
entry:
call void @other_work()
%arg.off = getelementptr inbounds i8, ptr %arg, i64 1
%arg1.off = getelementptr inbounds i8, ptr %arg1, i64 1
%arg.off.val = load i8, ptr %arg.off
%arg1.off.val = load i8, ptr %arg1.off
%cmp.off = icmp eq i8 %arg.off.val, %arg1.off.val
br i1 %cmp.off, label %if, label %join
if:
%arg.val = load i8, ptr %arg
%arg1.val = load i8, ptr %arg1
%cmp = icmp eq i8 %arg.val, %arg1.val
br label %join
join:
%phi = phi i1 [ false, %entry ], [ %cmp, %if ]
ret i1 %phi
}
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