forked from OSchip/llvm-project
45 lines
1.8 KiB
LLVM
45 lines
1.8 KiB
LLVM
; REQUIRES: x86
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;; The LTO code generator may create references which will fetch lazy symbols.
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;; Test that version script local: directives can change the binding of such
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;; symbols to STB_LOCAL. This is a bit complex because the LTO code generator
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;; happens after version script scanning and can change symbols from Lazy to Defined.
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; RUN: llvm-as %s -o %t.bc
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; RUN: echo '.globl __udivti3; __udivti3:' | llvm-mc -filetype=obj -triple=x86_64 - -o %t1.o
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;; An exact pattern can localize a libcall.
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; RUN: echo '{ global: foo; local: __udivti3; };' > %t.exact.ver
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; RUN: ld.lld -shared --version-script %t.exact.ver %t.bc --start-lib %t1.o --end-lib -o %t.exact.so
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; RUN: llvm-nm %t.exact.so | FileCheck %s
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;; A wildcard pattern can localize a libcall.
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; RUN: echo '{ global: foo; local: *; };' > %t.wild.ver
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; RUN: ld.lld -shared --version-script %t.wild.ver %t.bc --start-lib %t1.o --end-lib -o %t.wild.so
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; RUN: llvm-nm %t.wild.so | FileCheck %s
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; CHECK: t __udivti3
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; CHECK: T foo
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;; Test that --dynamic-list works on such libcall fetched symbols.
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; RUN: echo '{ foo; __udivti3; };' > %t.exact.list
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; RUN: ld.lld -pie --dynamic-list %t.exact.list %t.bc --start-lib %t1.o --end-lib -o %t.exact
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; RUN: llvm-nm %t.exact | FileCheck --check-prefix=LIST %s
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; RUN: echo '{ foo; __udiv*; };' > %t.wild.list
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; RUN: ld.lld -pie --dynamic-list %t.wild.list %t.bc --start-lib %t1.o --end-lib -o %t.wild
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; RUN: llvm-nm %t.wild | FileCheck --check-prefix=LIST %s
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; LIST: T __udivti3
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; LIST: T foo
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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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declare i64 @llvm.udiv.fix.i64(i64, i64, i32)
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;; The symbol table does not record __udivti3, but the reference will be created
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;; on the fly.
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define i64 @foo(i64 %x, i64 %y) {
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%ret = call i64 @llvm.udiv.fix.i64(i64 %x, i64 %y, i32 31)
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ret i64 %ret
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}
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