4e5488afb2
This essentially revertsf5884d255e(D57277). That commit was made as a workaround since LLVM back then didn't support cross-section relative relocations (IMAGE_REL_ARM64_REL32) in COFF for ARM64. Support for this was implemented later, ind5c5cf5ce8(D99572) and382c505d9c(D102217). The commit that moved jump tables to the function section noted that it woud be ideal to utilize IMAGE_REL_ARM64_REL32. Differential Revision: https://reviews.llvm.org/D113576
53 lines
1.2 KiB
LLVM
53 lines
1.2 KiB
LLVM
; RUN: llc -o - %s -mtriple=aarch64-windows -aarch64-enable-compress-jump-tables=0 | FileCheck %s
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; RUN: llc -o - %s -mtriple=aarch64-windows -aarch64-enable-compress-jump-tables=0 -filetype=obj | llvm-readobj --unwind - | FileCheck %s -check-prefix=UNWIND
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define void @f(i32 %x) {
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entry:
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switch i32 %x, label %sw.epilog [
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i32 0, label %sw.bb
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i32 1, label %sw.bb1
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i32 2, label %sw.bb2
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i32 3, label %sw.bb3
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]
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sw.bb:
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tail call void @g(i32 0, i32 4)
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br label %sw.epilog
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sw.bb1:
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tail call void @g(i32 1, i32 5)
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br label %sw.epilog
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sw.bb2:
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tail call void @g(i32 2, i32 6)
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br label %sw.epilog
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sw.bb3:
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tail call void @g(i32 3, i32 7)
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br label %sw.epilog
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sw.epilog:
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tail call void @g(i32 10, i32 8)
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ret void
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}
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declare void @g(i32, i32)
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; CHECK: .text
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; CHECK: f:
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; CHECK: .seh_proc f
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; CHECK: b g
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; CHECK-NEXT: .seh_endfunclet
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; CHECK-NEXT: .section .rdata,"dr"
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; CHECK-NEXT: .p2align 2
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; CHECK-NEXT: .LJTI0_0:
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; CHECK: .word .LBB0_2-.Ltmp0
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; CHECK: .word .LBB0_3-.Ltmp0
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; CHECK: .word .LBB0_4-.Ltmp0
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; CHECK: .word .LBB0_5-.Ltmp0
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; CHECK: .text
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; CHECK: .seh_endproc
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; Check that we can emit an object file with correct unwind info.
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; UNWIND: FunctionLength: {{[1-9][0-9]*}}
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