| ; RUN: opt -passes=globalopt < %s -S -o - | FileCheck %s |
| |
| ; When simplifying users of a global variable, the pass could incorrectly |
| ; return false if there were still some uses left, and no further optimizations |
| ; was done. This was caught by the pass return status check that is hidden |
| ; under EXPENSIVE_CHECKS. |
| |
| ; CHECK: @src = internal unnamed_addr constant |
| |
| ; CHECK: entry: |
| ; CHECK-NEXT: %call = call i32 @f(i32 0) |
| ; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 4 @dst, ptr align 4 @src, i64 1, i1 false) |
| ; CHECK-NEXT: ret void |
| |
| @src = internal unnamed_addr global [1 x i32] zeroinitializer, align 4 |
| @dst = external dso_local local_unnamed_addr global i32, align 4 |
| |
| define dso_local void @d() local_unnamed_addr { |
| entry: |
| %0 = load i32, ptr @src, align 4 |
| %call = call i32 @f(i32 %0) |
| call void @llvm.memcpy.p0.p0.i64(ptr align 4 @dst, ptr align 4 @src, i64 1, i1 false) |
| ret void |
| } |
| |
| declare dso_local i32 @f(i32) local_unnamed_addr |
| |
| declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) |
