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3e96531186
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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157062 91177308-0d34-0410-b5e6-96231b3b80d8
43 lines
1.1 KiB
LLVM
43 lines
1.1 KiB
LLVM
; RUN: llc < %s -mtriple=armv7-apple-darwin | FileCheck %s
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define double @f1() nounwind {
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; CHECK: f1:
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; CHECK: .data_region
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; CHECK: .long 1413754129
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; CHECK: .long 1074340347
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; CHECK: .end_data_region
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ret double 0x400921FB54442D11
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}
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define i32 @f2() {
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; CHECK: f2:
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; CHECK: .data_region jt32
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; CHECK: .end_data_region
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entry:
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switch i32 undef, label %return [
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i32 1, label %sw.bb
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i32 2, label %sw.bb6
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i32 3, label %sw.bb13
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i32 4, label %sw.bb20
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]
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sw.bb: ; preds = %entry
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br label %return
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sw.bb6: ; preds = %entry
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br label %return
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sw.bb13: ; preds = %entry
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br label %return
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sw.bb20: ; preds = %entry
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%div = sdiv i32 undef, undef
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br label %return
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return: ; preds = %sw.bb20, %sw.bb13, %sw.bb6, %sw.bb, %entry
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%retval.0 = phi i32 [ %div, %sw.bb20 ], [ undef, %sw.bb13 ], [ undef, %sw.bb6 ], [ undef, %sw.bb ], [ 0, %entry ]
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ret i32 %retval.0
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}
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