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llvm-project/lld/test/ELF/lto/discard-value-names.ll

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[LTO] Discard names for Values that are not global. This is not on by default (but it might be in the future). The knob to enable the optimization is -lto-discard-value-names. llvm-svn: 266953
2016-04-21 12:46:22 +08:00
; RUN: llvm-as %s -o %t.o
[LTO] Discard names for values that are not global by default. Rafael reported on the mailing list that this reduces peak memory usage while linking llvm-as by 15%. It makes sense to make it the default, and introduce an inverse knob -lto-no-discard-value-names for those who want to restore the old behavior. llvm-svn: 267020
2016-04-22 01:46:38 +08:00
; RUN: ld.lld -m elf_x86_64 -shared -save-temps %t.o -o %t2.o
[ELF/LTO] Switch to the new resolution-based API. Differential Revision: https://reviews.llvm.org/D24492 llvm-svn: 282656
2016-09-29 08:40:08 +08:00
; RUN: llvm-dis < %t2.o.0.0.preopt.bc | FileCheck %s
[LTO] Discard names for Values that are not global. This is not on by default (but it might be in the future). The knob to enable the optimization is -lto-discard-value-names. llvm-svn: 266953
2016-04-21 12:46:22 +08:00
; CHECK: @GlobalValueName
; CHECK: @foo(i32 %in)
; CHECK: somelabel:
; CHECK: %GV = load i32, i32* @GlobalValueName
; CHECK: %add = add i32 %in, %GV
; CHECK: ret i32 %add
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
@GlobalValueName = global i32 0
define i32 @foo(i32 %in) {
somelabel:
%GV = load i32, i32* @GlobalValueName
%add = add i32 %in, %GV
ret i32 %add
}