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llvm-project/llvm/test/ThinLTO/X86/index-const-prop2.ll

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[ThinLTO] Internalize readonly globals An attempt to recommit r346584 after failure on OSX build bot. Fixed cache key computation in ThinLTOCodeGenerator and added test case llvm-svn: 347033
2018-11-16 15:08:00 +08:00
; Check constant propagation in thinlto combined summary. This allows us to do 2 things:
; 1. Internalize global definition which is not used externally if all accesses to it are read-only
; 2. Make a local copy of internal definition if all accesses to it are readonly. This allows constant
; folding it during optimziation phase.
; RUN: opt -module-summary %s -o %t1.bc
; RUN: opt -module-summary %p/Inputs/index-const-prop.ll -o %t2.bc
; RUN: llvm-lto2 run %t1.bc %t2.bc -save-temps \
; RUN: -r=%t2.bc,foo,pl \
; RUN: -r=%t2.bc,bar,pl \
; RUN: -r=%t2.bc,baz,pl \
; RUN: -r=%t2.bc,rand, \
; RUN: -r=%t2.bc,gBar,pl \
; RUN: -r=%t1.bc,main,plx \
[ThinLTO] Attempt to recommit r365188 after alignment fix llvm-svn: 365215
2019-07-05 23:25:05 +08:00
; RUN: -r=%t1.bc,main2,pl \
[ThinLTO] Internalize readonly globals An attempt to recommit r346584 after failure on OSX build bot. Fixed cache key computation in ThinLTOCodeGenerator and added test case llvm-svn: 347033
2018-11-16 15:08:00 +08:00
; RUN: -r=%t1.bc,foo, \
; RUN: -r=%t1.bc,bar, \
[ThinLTO] Attempt to recommit r365188 after alignment fix llvm-svn: 365215
2019-07-05 23:25:05 +08:00
; RUN: -r=%t1.bc,baz, \
[ThinLTO] Internalize readonly globals An attempt to recommit r346584 after failure on OSX build bot. Fixed cache key computation in ThinLTOCodeGenerator and added test case llvm-svn: 347033
2018-11-16 15:08:00 +08:00
; RUN: -r=%t1.bc,gBar, \
; RUN: -o %t3
; RUN: llvm-dis %t3.1.3.import.bc -o - | FileCheck %s --check-prefix=IMPORT
; RUN: llvm-dis %t3.1.5.precodegen.bc -o - | FileCheck %s --check-prefix=CODEGEN
; Now check that we won't internalize global (gBar) if it's externally referenced
; RUN: llvm-lto2 run %t1.bc %t2.bc -save-temps \
; RUN: -r=%t2.bc,foo,pl \
; RUN: -r=%t2.bc,bar,pl \
; RUN: -r=%t2.bc,baz,pl \
; RUN: -r=%t2.bc,rand, \
; RUN: -r=%t2.bc,gBar,plx \
; RUN: -r=%t1.bc,main,plx \
[ThinLTO] Attempt to recommit r365188 after alignment fix llvm-svn: 365215
2019-07-05 23:25:05 +08:00
; RUN: -r=%t1.bc,main2,pl \
[ThinLTO] Internalize readonly globals An attempt to recommit r346584 after failure on OSX build bot. Fixed cache key computation in ThinLTOCodeGenerator and added test case llvm-svn: 347033
2018-11-16 15:08:00 +08:00
; RUN: -r=%t1.bc,foo, \
; RUN: -r=%t1.bc,bar, \
[ThinLTO] Attempt to recommit r365188 after alignment fix llvm-svn: 365215
2019-07-05 23:25:05 +08:00
; RUN: -r=%t1.bc,baz, \
[ThinLTO] Internalize readonly globals An attempt to recommit r346584 after failure on OSX build bot. Fixed cache key computation in ThinLTOCodeGenerator and added test case llvm-svn: 347033
2018-11-16 15:08:00 +08:00
; RUN: -r=%t1.bc,gBar, \
[ThinLTO] Attempt to recommit r365188 after alignment fix llvm-svn: 365215
2019-07-05 23:25:05 +08:00
; RUN: -o %t4
; RUN: llvm-dis %t4.1.3.import.bc -o - | FileCheck %s --check-prefix=IMPORT2
; RUN: llvm-lto2 run %t1.bc %t2.bc -save-temps \
; RUN: -r=%t2.bc,foo,pl \
; RUN: -r=%t2.bc,bar,pl \
; RUN: -r=%t2.bc,baz,pl \
; RUN: -r=%t2.bc,rand, \
; RUN: -r=%t2.bc,gBar,pl \
; RUN: -r=%t1.bc,main,pl \
; RUN: -r=%t1.bc,main2,plx \
; RUN: -r=%t1.bc,foo, \
; RUN: -r=%t1.bc,bar, \
; RUN: -r=%t1.bc,baz, \
; RUN: -r=%t1.bc,gBar, \
; RUN: -o %t5
; RUN: llvm-dis %t5.1.3.import.bc -o - | FileCheck %s --check-prefix=IMPORT
; RUN: llvm-dis %t5.1.5.precodegen.bc -o - | FileCheck %s --check-prefix=CODEGEN2
; Check that gFoo and gBar were eliminated from source module together
; with corresponsing stores
; RUN: llvm-dis %t5.2.5.precodegen.bc -o - | FileCheck %s --check-prefix=CODEGEN2-SRC
[ThinLTO] Internalize readonly globals An attempt to recommit r346584 after failure on OSX build bot. Fixed cache key computation in ThinLTOCodeGenerator and added test case llvm-svn: 347033
2018-11-16 15:08:00 +08:00
; IMPORT: @gFoo.llvm.0 = internal unnamed_addr global i32 1, align 4
; IMPORT-NEXT: @gBar = internal local_unnamed_addr global i32 2, align 4
ThinLTO: Do not import debug info for imported global constants It looks like this isn't necessary (in any tests I've done, it results in the global being described with no location or value in the imported side - while it's still fully described in the place it's imported from) & results in significant/pathological debug info growth to home these location-less global variable descriptions on the import side. This is a rather pressing/important issue to address - this regressed executable size for one example I'm looking at by 15%, object size is probably similar though I haven't measured it, and a 22x increase in the number of CUs in the cu_index in split DWARF DWP files, creating a similarly large regression in the time it takes llvm-symbolizer to run on such binaries. Reviewers: tejohnson, evgeny777 Differential Revision: https://reviews.llvm.org/D55309 llvm-svn: 348416
2018-12-06 05:42:17 +08:00
; IMPORT: !DICompileUnit({{.*}})
[ThinLTO] Internalize readonly globals An attempt to recommit r346584 after failure on OSX build bot. Fixed cache key computation in ThinLTOCodeGenerator and added test case llvm-svn: 347033
2018-11-16 15:08:00 +08:00
; CODEGEN: i32 @main()
; CODEGEN-NEXT: ret i32 3
; IMPORT2: @gBar = available_externally dso_local local_unnamed_addr global i32 2, align 4
[ThinLTO] Attempt to recommit r365188 after alignment fix llvm-svn: 365215
2019-07-05 23:25:05 +08:00
; CODEGEN2: i32 @main2
; CODEGEN2-NEXT: %1 = tail call i32 @rand()
; CODEGEN2-NEXT: %2 = tail call i32 @rand()
; CODEGEN2-NEXT: ret i32 0
; CODEGEN2-SRC: void @baz()
; CODEGEN2-SRC-NEXT: %1 = tail call i32 @rand()
; CODEGEN2-SRC-NEXT: %2 = tail call i32 @rand()
; CODEGEN2-SRC-NEXT: ret void
Reland "Change the X86 datalayout to add three address spaces 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
2019-09-11 07:15:38 +08:00
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
[ThinLTO] Internalize readonly globals An attempt to recommit r346584 after failure on OSX build bot. Fixed cache key computation in ThinLTOCodeGenerator and added test case llvm-svn: 347033
2018-11-16 15:08:00 +08:00
target triple = "x86_64-pc-linux-gnu"
; We should be able to link external definition of gBar to its declaration
@gBar = external global i32
define i32 @main() local_unnamed_addr {
%call = tail call i32 bitcast (i32 (...)* @foo to i32 ()*)()
%call1 = tail call i32 bitcast (i32 (...)* @bar to i32 ()*)()
%add = add nsw i32 %call1, %call
ret i32 %add
}
[ThinLTO] Attempt to recommit r365188 after alignment fix llvm-svn: 365215
2019-07-05 23:25:05 +08:00
define i32 @main2() local_unnamed_addr {
tail call void @baz()
ret i32 0
}
[ThinLTO] Internalize readonly globals An attempt to recommit r346584 after failure on OSX build bot. Fixed cache key computation in ThinLTOCodeGenerator and added test case llvm-svn: 347033
2018-11-16 15:08:00 +08:00
declare i32 @foo(...) local_unnamed_addr
declare i32 @bar(...) local_unnamed_addr
[ThinLTO] Attempt to recommit r365188 after alignment fix llvm-svn: 365215
2019-07-05 23:25:05 +08:00
declare void @baz() local_unnamed_addr