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Dead function has its body stripped away, and can cause various analyses to panic. Also it does not make sense to apply analyses on such function. Reviewed By: xazax.hun, MaskRay, wenlei, hoy Differential Revision: https://reviews.llvm.org/D84715
57 lines
1.7 KiB
LLVM
57 lines
1.7 KiB
LLVM
; RUN: opt -module-summary -o %t %s
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; RUN: opt -module-summary -o %t2 %S/Inputs/dead-strip-fulllto.ll
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; Adding '--pass-remarks-with-hotness' should not cause crash.
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; RUN: llvm-lto2 run --pass-remarks-output=%t4.yaml --pass-remarks-filter=. --pass-remarks-with-hotness \
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; RUN: %t -r %t,main,px -r %t,live1, -r %t,live2,p -r %t,dead2,p \
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; RUN: %t2 -r %t2,live1,p -r %t2,live2, -r %t2,dead1,p -r %t2,dead2, -r %t2,odr, \
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; RUN: -save-temps -o %t3
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; RUN: cat %t4.yaml | FileCheck %s -check-prefix=REMARK
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; RUN: llvm-nm %t3.0 | FileCheck --check-prefix=FULL %s
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; RUN: llvm-nm %t3.1 | FileCheck --check-prefix=THIN %s
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; RUN: llvm-lto2 run %t -r %t,main,px -r %t,live1, -r %t,live2,p -r %t,dead2,p \
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; RUN: %t2 -r %t2,live1,p -r %t2,live2, -r %t2,dead1,p -r %t2,dead2, -r %t2,odr, \
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; RUN: -save-temps -o %t3 -O0
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; RUN: llvm-nm %t3.0 | FileCheck --check-prefix=FULL %s
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; RUN: llvm-nm %t3.1 | FileCheck --check-prefix=THIN %s
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; REMARK: Pass: lto
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; REMARK-NEXT: Name: deadfunction
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; REMARK-NEXT: Function: dead2
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; REMARK-NEXT: Args:
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; REMARK-NEXT: - Function: dead2
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; REMARK-NEXT: - String: ' not added to the combined module '
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; FULL-NOT: dead
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; FULL: U live1
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; FULL: T live2
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; FULL: T main
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; THIN-NOT: dead
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; THIN: T live1
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; THIN: U live2
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; THIN-NOT: odr
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define void @main() {
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call void @live1()
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ret void
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}
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declare void @live1()
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define void @live2() {
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ret void
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}
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define void @dead2() {
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ret void
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}
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!0 = !{i32 1, !"ThinLTO", i32 0}
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!llvm.module.flags = !{ !0 }
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