1; RUN: opt -passes=globalopt < %s -S -o - | FileCheck %s 2 3; When simplifying users of a global variable, the pass could incorrectly 4; return false if there were still some uses left, and no further optimizations 5; was done. This was caught by the pass return status check that is hidden 6; under EXPENSIVE_CHECKS. 7 8; CHECK: @src = internal unnamed_addr constant 9 10; CHECK: entry: 11; CHECK-NEXT: %call = call i32 @f(i32 0) 12; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 4 @dst, ptr align 4 @src, i64 1, i1 false) 13; CHECK-NEXT: ret void 14 15@src = internal unnamed_addr global [1 x i32] zeroinitializer, align 4 16@dst = external dso_local local_unnamed_addr global i32, align 4 17 18define dso_local void @d() local_unnamed_addr { 19entry: 20 %0 = load i32, ptr @src, align 4 21 %call = call i32 @f(i32 %0) 22 call void @llvm.memcpy.p0.p0.i64(ptr align 4 @dst, ptr align 4 @src, i64 1, i1 false) 23 ret void 24} 25 26declare dso_local i32 @f(i32) local_unnamed_addr 27 28declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) 29