60 lines
2.2 KiB
LLVM
60 lines
2.2 KiB
LLVM
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; REQUIRES: x86-registered-target
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; Compile with thinlto indices, to enable thinlto.
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; RUN: opt -module-summary %s -o %t1.bc
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; Test old lto interface with thinlto (currently known to be broken, so
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; the FileCheck line is commented out).
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; FIXME: The new LTO implementation has been fixed to not internalize
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; (and later dead-code-eliminate) builtin functions. However the old LTO
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; implementation still internalizes them, and when used with ThinLTO they
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; get dead-code eliminated before the optimizations run that insert calls
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; to them (thus breaking these inserted calls). This needs to be fixed.
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; RUN: llvm-lto -exported-symbol=main -thinlto-action=run %t1.bc
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;;; RUN llvm-nm %t1.bc.thinlto.o | FileCheck %s --check-prefix=CHECK-NM
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; Test new lto interface with thinlto.
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; RUN: llvm-lto2 run %t1.bc -o %t.out -save-temps \
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; RUN: -r %t1.bc,bar,pl \
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; RUN: -r %t1.bc,__stack_chk_fail,pl
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; RUN: llvm-nm %t.out.1 | FileCheck %s --check-prefix=CHECK-NM
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;
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; Re-compile, this time without the thinlto indices.
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; RUN: opt %s -o %t4.bc
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; Test the new lto interface without thinlto.
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; RUN: llvm-lto2 run %t4.bc -o %t5.out -save-temps \
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; RUN: -r %t4.bc,bar,pl \
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; RUN: -r %t4.bc,__stack_chk_fail,pl
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; RUN: llvm-nm %t5.out.0 | FileCheck %s --check-prefix=CHECK-NM
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; Test the old lto interface without thinlto. For now we need to
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; use a different nm check, because currently the old lto interface
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; internalizes these symbols. Once the old lto interface gets
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; fixed, we should be able to use the same CHECK-NM tests as the
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; other FileChecks.
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; RUN: llvm-lto -exported-symbol=main %t4.bc -o %t6
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; RUN: llvm-nm %t6 | FileCheck %s --check-prefix=CHECK-NM2
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; The final binary should not contain any of the dead functions;
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; make sure memmove and memcpy are there.
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; CHECK-NM-NOT: bar
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; CHECK-NM-DAG: T __stack_chk_fail
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; CHECK-NM-NOT: bar
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; Test case for old lto without thinlto. Hopefully these can be
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; eliminated once the old lto interface is fixed.
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; CHECK-NM2-DAG: t __stack_chk_fail
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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 @bar() {
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ret void
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}
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define void @__stack_chk_fail() {
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ret void
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}
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