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343a996ca5
Use a dedicated MachO load command to annotate data-in-code regions.
This is the same format the linker produces for final executable images,
allowing consistency of representation and use of introspection tools
for both object and executable files.
Data-in-code regions are annotated via ".data_region"/".end_data_region"
directive pairs, with an optional region type.
data_region_directive := ".data_region" { region_type }
region_type := "jt8" | "jt16" | "jt32" | "jta32"
end_data_region_directive := ".end_data_region"
The previous handling of ARM-style "$d.*" labels was broken and has
been removed. Specifically, it didn't handle ARM vs. Thumb mode when
marking the end of the section.
rdar://11459456
llvm-svn: 157062
60 lines
1.3 KiB
LLVM
60 lines
1.3 KiB
LLVM
; RUN: llc < %s -mtriple=thumbv7-apple-darwin | FileCheck %s
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; RUN: llc < %s -mtriple=thumbv7-apple-darwin -relocation-model=pic | FileCheck %s
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define void @bar(i32 %n.u) {
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entry:
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; CHECK: bar:
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; CHECK: tbb
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; CHECK: .data_region jt8
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; CHECK: .end_data_region
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; CHECK-NEXT: .align 1
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switch i32 %n.u, label %bb12 [i32 1, label %bb i32 2, label %bb6 i32 4, label %bb7 i32 5, label %bb8 i32 6, label %bb10 i32 7, label %bb1 i32 8, label %bb3 i32 9, label %bb4 i32 10, label %bb9 i32 11, label %bb2 i32 12, label %bb5 i32 13, label %bb11 ]
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bb:
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tail call void(...)* @foo1()
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ret void
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bb1:
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tail call void(...)* @foo2()
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ret void
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bb2:
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tail call void(...)* @foo6()
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ret void
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bb3:
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tail call void(...)* @foo3()
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ret void
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bb4:
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tail call void(...)* @foo4()
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ret void
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bb5:
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tail call void(...)* @foo5()
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ret void
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bb6:
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tail call void(...)* @foo1()
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ret void
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bb7:
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tail call void(...)* @foo2()
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ret void
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bb8:
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tail call void(...)* @foo6()
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ret void
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bb9:
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tail call void(...)* @foo3()
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ret void
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bb10:
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tail call void(...)* @foo4()
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ret void
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bb11:
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tail call void(...)* @foo5()
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ret void
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bb12:
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tail call void(...)* @foo6()
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ret void
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}
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declare void @foo1(...)
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declare void @foo2(...)
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declare void @foo6(...)
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declare void @foo3(...)
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declare void @foo4(...)
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declare void @foo5(...)
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