; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals ; RUN: opt -S -passes=globalopt < %s | FileCheck %s target datalayout = "p1:32:32" @llvm.global_ctors = appending global [11 x { i32, ptr, ptr }] [ { i32, ptr, ptr } { i32 65535, ptr @ctor0, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @ctor1, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @ctor2, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @ctor3, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @ctor4, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @ctor5, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @ctor6, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @ctor7, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @ctor8, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @ctor9, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @ctor10, ptr null } ] ; memset of all-zero global @g0 = global { i32, i32 } zeroinitializer ;. ; CHECK: @[[LLVM_GLOBAL_CTORS:[a-zA-Z0-9_$"\\.-]+]] = appending global [4 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 65535, ptr @ctor3, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @ctor4, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @ctor7, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @ctor10, ptr null }] ; CHECK: @[[G0:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global { i32, i32 } zeroinitializer ; CHECK: @[[G1:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global { i32, i32, i32 } { i32 0, i32 0, i32 1 } ; CHECK: @[[G2:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global { i32, i32, i32 } { i32 1, i32 0, i32 0 } ; CHECK: @[[G3:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global { i32, i32 } { i32 0, i32 1 } ; CHECK: @[[G4:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global { i32, i32 } { i32 0, i32 undef } ; CHECK: @[[G5:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global { i16, i32 } { i16 0, i32 1 } ; CHECK: @[[G6:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global { i32, i32 } { i32 -1, i32 -1 } ; CHECK: @[[G7:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global { i32, i32 } { i32 -1, i32 1 } ; CHECK: @[[G8:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr addrspace(1) global { i32, i32 } zeroinitializer ; CHECK: @[[G9:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global [100000000 x i32] zeroinitializer ; CHECK: @[[G10:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global { [99999999 x i32], i32 } { [99999999 x i32] zeroinitializer, i32 1 } ;. define internal void @ctor0() { call void @llvm.memset.p0.i64(ptr @g0, i8 0, i64 8, i1 false) ret void } ; memset of zero prefix @g1 = global { i32, i32, i32 } { i32 0, i32 0, i32 1 } define internal void @ctor1() { call void @llvm.memset.p0.i64(ptr @g1, i8 0, i64 8, i1 false) ret void } ; memset of zero suffix @g2 = global { i32, i32, i32 } { i32 1, i32 0, i32 0 } define internal void @ctor2() { call void @llvm.memset.p0.i64(ptr getelementptr (i32, ptr @g2, i64 1), i8 0, i64 8, i1 false) ret void } ; memset of some non-zero bytes @g3 = global { i32, i32 } { i32 0, i32 1 } define internal void @ctor3() { ; CHECK-LABEL: @ctor3( ; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr @g3, i8 0, i64 8, i1 false) ; CHECK-NEXT: ret void ; call void @llvm.memset.p0.i64(ptr @g3, i8 0, i64 8, i1 false) ret void } ; memset of some undef bytes @g4 = global { i32, i32 } { i32 0, i32 undef } define internal void @ctor4() { ; CHECK-LABEL: @ctor4( ; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr @g4, i8 0, i64 8, i1 false) ; CHECK-NEXT: ret void ; call void @llvm.memset.p0.i64(ptr @g4, i8 0, i64 8, i1 false) ret void } ; memset including padding bytes ; FIXME: We still incorrectly optimize the memset away here, even though code ; might access the padding. @g5 = global { i16, i32 } { i16 0, i32 1 } define internal void @ctor5() { call void @llvm.memset.p0.i64(ptr @g5, i8 0, i64 4, i1 false) ret void } ; memset of non-zero value (matching initializer) @g6 = global { i32, i32 } { i32 -1, i32 -1 } define internal void @ctor6() { call void @llvm.memset.p0.i64(ptr @g6, i8 -1, i64 8, i1 false) ret void } ; memset of non-zero value (not matching initializer) @g7 = global { i32, i32 } { i32 -1, i32 1 } define internal void @ctor7() { ; CHECK-LABEL: @ctor7( ; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr @g7, i8 -1, i64 8, i1 false) ; CHECK-NEXT: ret void ; call void @llvm.memset.p0.i64(ptr @g7, i8 -1, i64 8, i1 false) ret void } ; memset of zero value in differently-sized address space @g8 = addrspace(1) global { i32, i32 } zeroinitializer define internal void @ctor8() { call void @llvm.memset.p0.i64(ptr addrspacecast (ptr addrspace(1) @g8 to ptr), i8 0, i64 8, i1 false) ret void } @g9 = global [100000000 x i32] zeroinitializer define internal void @ctor9() { call void @llvm.memset.p0.i64(ptr @g9, i8 0, i64 100000000, i1 false) ret void } @g10 = global { [99999999 x i32], i32 } { [99999999 x i32 ] zeroinitializer, i32 1 } define internal void @ctor10() { ; CHECK-LABEL: @ctor10( ; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr @g10, i8 0, i64 100000000, i1 false) ; CHECK-NEXT: ret void ; call void @llvm.memset.p0.i64(ptr @g10, i8 0, i64 100000000, i1 false) ret void } declare void @llvm.memset.p0.i64(ptr, i8, i64, i1) ;. ; CHECK: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) } ;.