derek.holloway
7502bf64a4
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50 lines
1.0 KiB
LLVM
50 lines
1.0 KiB
LLVM
; RUN: opt -passes=globalopt -S -o - < %s | FileCheck %s
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@glbl = internal global ptr null
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define void @test1a() {
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; CHECK-LABEL: @test1a(
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; CHECK-NOT: store
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; CHECK-NEXT: ret void
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store ptr null, ptr @glbl
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ret void
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}
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define void @test1b(ptr %p) {
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; CHECK-LABEL: @test1b(
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; CHECK-NEXT: store
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; CHECK-NEXT: ret void
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store ptr %p, ptr @glbl
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ret void
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}
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define void @test2() {
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; CHECK-LABEL: @test2(
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; CHECK: alloca i8
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%txt = alloca i8
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call void @foo2(ptr %txt)
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%call2 = call ptr @strdup(ptr %txt)
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store ptr %call2, ptr @glbl
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ret void
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}
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declare ptr @strdup(ptr)
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declare void @foo2(ptr)
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define void @test3() uwtable personality ptr @__gxx_personality_v0 {
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; CHECK-LABEL: @test3(
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; CHECK-NOT: bb1:
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; CHECK-NOT: bb2:
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; CHECK: invoke
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%ptr = invoke ptr @_Znwm(i64 1)
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to label %bb1 unwind label %bb2
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bb1:
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store ptr %ptr, ptr @glbl
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unreachable
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bb2:
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%tmp1 = landingpad { ptr, i32 }
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cleanup
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resume { ptr, i32 } %tmp1
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}
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declare i32 @__gxx_personality_v0(i32, i64, ptr, ptr)
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declare ptr @_Znwm(i64)
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