27533c7e84
The result of the MachineFunction preferred alignment query is emitted as a .prefalign directive if supported, otherwise it gets combined into the minimum alignment. Part of this RFC: https://discourse.llvm.org/t/rfc-enhancing-function-alignment-attributes/88019 Reland of #155529 with fix for gold test case. Reviewers: fmayer, nikic, arsenm Pull Request: https://github.com/llvm/llvm-project/pull/182929
28 lines
597 B
LLVM
28 lines
597 B
LLVM
; RUN: llc < %s | FileCheck --check-prefixes=CHECK,NOFS %s
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; RUN: llc -function-sections < %s | FileCheck --check-prefixes=CHECK,FS %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; CHECK: .globl f1
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; NOFS-NEXT: .p2align 4
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; FS-NEXT: .prefalign 16
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define void @f1() {
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ret void
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}
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; CHECK: .globl f2
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; CHECK-NOT: .prefalign
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; CHECK-NOT: .p2align
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define void @f2() prefalign(1) {
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ret void
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}
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; CHECK: .globl f3
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; NOFS-NEXT: .p2align 2
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; FS-NEXT: .p2align 1
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; FS-NEXT: .prefalign 4
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define void @f3() align 2 prefalign(4) {
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ret void
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}
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