7b7747dc1d
This reapplies commit 1911a50fae8a441b445eb835b98950710d28fc88 with a minor fix in lld/ELF/LTO.cpp which sets Options.BBAddrMap when `--lto-basic-block-sections=labels` is passed.
22 lines
748 B
LLVM
22 lines
748 B
LLVM
;; This test verifies that with -gc-empty-basic-blocks SHT_LLVM_BB_ADDR_MAP will not include entries for empty blocks.
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; RUN: llc < %s -mtriple=x86_64 -O0 -basic-block-address-map -gc-empty-basic-blocks | FileCheck --check-prefix=CHECK %s
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define void @foo(i1 zeroext %0) nounwind {
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br i1 %0, label %2, label %empty_block
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2: ; preds = %1
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%3 = call i32 @bar()
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br label %4
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empty_block: ; preds = %1
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unreachable
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4: ; preds = %2, %empty_block
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ret void
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}
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declare i32 @bar()
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; CHECK: .section .llvm_bb_addr_map,"o",@llvm_bb_addr_map,.text
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; CHECK: .byte 3 # number of basic blocks
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