0676acb6fd
Should cover most of the tests for GVN, GVNHoist, GVNSink, GlobalOpt, GlobalSplit, InstCombine, Reassociate, SROA and TailCallElim that had not been updated earlier.
120 lines
4.3 KiB
LLVM
120 lines
4.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals
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; RUN: opt -S -passes=globalopt < %s | FileCheck %s
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target datalayout = "p1:32:32"
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@llvm.global_ctors = appending global [9 x { i32, ptr, ptr }] [
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{ i32, ptr, ptr } { i32 65535, ptr @ctor0, ptr null },
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{ i32, ptr, ptr } { i32 65535, ptr @ctor1, ptr null },
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{ i32, ptr, ptr } { i32 65535, ptr @ctor2, ptr null },
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{ i32, ptr, ptr } { i32 65535, ptr @ctor3, ptr null },
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{ i32, ptr, ptr } { i32 65535, ptr @ctor4, ptr null },
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{ i32, ptr, ptr } { i32 65535, ptr @ctor5, ptr null },
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{ i32, ptr, ptr } { i32 65535, ptr @ctor6, ptr null },
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{ i32, ptr, ptr } { i32 65535, ptr @ctor7, ptr null },
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{ i32, ptr, ptr } { i32 65535, ptr @ctor8, ptr null }
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]
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;.
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; CHECK: @[[LLVM_GLOBAL_CTORS:[a-zA-Z0-9_$"\\.-]+]] = appending global [3 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 65535, ptr @ctor3, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @ctor4, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @ctor7, ptr null }]
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; CHECK: @[[G0:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global { i32, i32 } zeroinitializer
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; CHECK: @[[G1:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global { i32, i32, i32 } { i32 0, i32 0, i32 1 }
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; CHECK: @[[G2:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global { i32, i32, i32 } { i32 1, i32 0, i32 0 }
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; CHECK: @[[G3:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global { i32, i32 } { i32 0, i32 1 }
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; CHECK: @[[G4:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global { i32, i32 } { i32 0, i32 undef }
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; CHECK: @[[G5:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global { i16, i32 } { i16 0, i32 1 }
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; CHECK: @[[G6:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global { i32, i32 } { i32 -1, i32 -1 }
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; CHECK: @[[G7:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr global { i32, i32 } { i32 -1, i32 1 }
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; CHECK: @[[G8:[a-zA-Z0-9_$"\\.-]+]] = local_unnamed_addr addrspace(1) global { i32, i32 } zeroinitializer
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;.
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; memset of all-zero global
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@g0 = global { i32, i32 } zeroinitializer
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define internal void @ctor0() {
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call void @llvm.memset.p0.i64(ptr @g0, i8 0, i64 8, i1 false)
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ret void
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}
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; memset of zero prefix
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@g1 = global { i32, i32, i32 } { i32 0, i32 0, i32 1 }
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define internal void @ctor1() {
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call void @llvm.memset.p0.i64(ptr @g1, i8 0, i64 8, i1 false)
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ret void
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}
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; memset of zero suffix
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@g2 = global { i32, i32, i32 } { i32 1, i32 0, i32 0 }
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define internal void @ctor2() {
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call void @llvm.memset.p0.i64(ptr getelementptr (i32, ptr @g2, i64 1), i8 0, i64 8, i1 false)
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ret void
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}
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; memset of some non-zero bytes
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@g3 = global { i32, i32 } { i32 0, i32 1 }
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define internal void @ctor3() {
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; CHECK-LABEL: @ctor3(
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; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr @g3, i8 0, i64 8, i1 false)
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; CHECK-NEXT: ret void
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;
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call void @llvm.memset.p0.i64(ptr @g3, i8 0, i64 8, i1 false)
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ret void
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}
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; memset of some undef bytes
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@g4 = global { i32, i32 } { i32 0, i32 undef }
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define internal void @ctor4() {
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; CHECK-LABEL: @ctor4(
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; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr @g4, i8 0, i64 8, i1 false)
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; CHECK-NEXT: ret void
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;
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call void @llvm.memset.p0.i64(ptr @g4, i8 0, i64 8, i1 false)
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ret void
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}
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; memset including padding bytes
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; FIXME: We still incorrectly optimize the memset away here, even though code
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; might access the padding.
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@g5 = global { i16, i32 } { i16 0, i32 1 }
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define internal void @ctor5() {
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call void @llvm.memset.p0.i64(ptr @g5, i8 0, i64 4, i1 false)
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ret void
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}
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; memset of non-zero value (matching initializer)
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@g6 = global { i32, i32 } { i32 -1, i32 -1 }
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define internal void @ctor6() {
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call void @llvm.memset.p0.i64(ptr @g6, i8 -1, i64 8, i1 false)
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ret void
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}
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; memset of non-zero value (not matching initializer)
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@g7 = global { i32, i32 } { i32 -1, i32 1 }
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define internal void @ctor7() {
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; CHECK-LABEL: @ctor7(
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; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr @g7, i8 -1, i64 8, i1 false)
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; CHECK-NEXT: ret void
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;
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call void @llvm.memset.p0.i64(ptr @g7, i8 -1, i64 8, i1 false)
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ret void
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}
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; memset of zero value in differently-sized address space
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@g8 = addrspace(1) global { i32, i32 } zeroinitializer
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define internal void @ctor8() {
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call void @llvm.memset.p0.i64(ptr addrspacecast (ptr addrspace(1) @g8 to ptr), i8 0, i64 8, i1 false)
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ret void
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}
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declare void @llvm.memset.p0.i64(ptr, i8, i64, i1)
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;.
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; CHECK: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
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;.
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