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062b5d40cb
for 32 bit signed, 32 bit unsigned, and 64 bit pointers." This reverts 57076d3199fc2b0af4a3736b7749dd5462cacda5. Original review at https://reviews.llvm.org/D64931. Review for added fix at https://reviews.llvm.org/D66843. llvm-svn: 371568
56 lines
1.8 KiB
LLVM
56 lines
1.8 KiB
LLVM
; Test that the list of CFI jumptable entries is part of ThinLTO cache key.
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; Linking Inputs/cache-icall.ll results in f() being added to CFI jumptable; otherwise it is not.
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; This affects code generated for any users of f(). Make sure that we don't pull a stale object
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; file for %t.o from the cache.
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; RUN: opt -module-hash -module-summary -thinlto-bc -thinlto-split-lto-unit %s -o %t.bc
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; RUN: opt -module-hash -module-summary -thinlto-bc -thinlto-split-lto-unit %p/Inputs/cache-icall.ll -o %t2.bc
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; RUN: rm -Rf %t.cache && mkdir %t.cache
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; RUN: llvm-lto2 run -o %t-no.o %t.bc -cache-dir %t.cache \
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; RUN: -r=%t.bc,_start,px \
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; RUN: -r=%t.bc,f,
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; RUN: llvm-readelf -s %t-no.o.* | FileCheck %s --check-prefix=SYMBOLS-NO
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; RUN: llvm-lto2 run -o %t-yes.o %t.bc %t2.bc -cache-dir %t.cache \
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; RUN: -r=%t.bc,_start,px \
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; RUN: -r=%t.bc,f, \
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; RUN: -r=%t2.bc,f,p
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; RUN: llvm-readelf -s %t-yes.o.* | FileCheck %s --check-prefix=SYMBOLS-YES
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; SYMBOLS-NO-DAG: {{FUNC .* f.cfi_jt$}}
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; SYMBOLS-NO-DAG: {{NOTYPE .* UND f.cfi_jt$}}
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; SYMBOLS-YES-NOT: f.cfi_jt
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; SYMBOLS-YES-DAG: {{FUNC .* f.cfi$}}
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; SYMBOLS-YES-DAG: {{NOTYPE .* UND f.cfi$}}
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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 i8* @_start(void ()* %p) !type !0 {
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entry:
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%0 = bitcast void ()* %p to i8*
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%1 = tail call i1 @llvm.type.test(i8* %0, metadata !"_ZTSFvvE")
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br i1 %1, label %cont, label %trap
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trap: ; preds = %entry
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tail call void @llvm.trap()
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unreachable
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cont: ; preds = %entry
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tail call void %p()
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ret i8* bitcast (void ()* @f to i8*)
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}
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declare i1 @llvm.type.test(i8*, metadata)
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declare void @llvm.trap()
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declare !type !1 void @f()
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!0 = !{i64 0, !"_ZTSFPvPFvvEE"}
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!1 = !{i64 0, !"_ZTSFvvE"}
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