| ; Test to ensure that uses and defs in module level asm are handled |
| ; appropriately. Specifically, we should conservatively block importing |
| ; of any references to these values, as they can't be renamed. |
| ; RUN: opt -module-summary %s -o %t1.bc |
| ; RUN: opt -module-summary %p/Inputs/module_asm2.ll -o %t2.bc |
| |
| ; RUN: llvm-lto -thinlto-action=run -exported-symbol=main -exported-symbol=func1 -exported-symbol=func2 -exported-symbol=func3 -exported-symbol=callglobalfunc -exported-symbol=callweakfunc %t1.bc %t2.bc |
| ; RUN: llvm-nm %t1.bc.thinlto.o | FileCheck %s --check-prefix=NM0 |
| ; RUN: llvm-nm %t2.bc.thinlto.o | FileCheck %s --check-prefix=NM1 |
| |
| ; RUN: llvm-lto2 run %t1.bc %t2.bc -o %t.o -save-temps \ |
| ; RUN: -r=%t1.bc,foo,plx \ |
| ; RUN: -r=%t1.bc,globalfunc,plx \ |
| ; RUN: -r=%t1.bc,globalfunc,lx \ |
| ; RUN: -r=%t1.bc,weakfunc,plx \ |
| ; RUN: -r=%t1.bc,weakfunc,lx \ |
| ; RUN: -r=%t1.bc,b,pl \ |
| ; RUN: -r=%t1.bc,x,pl \ |
| ; RUN: -r=%t1.bc,func1,pl \ |
| ; RUN: -r=%t1.bc,func2,pl \ |
| ; RUN: -r=%t1.bc,func3,pl \ |
| ; RUN: -r=%t1.bc,callglobalfunc,plx \ |
| ; RUN: -r=%t1.bc,callweakfunc,plx \ |
| ; RUN: -r=%t2.bc,main,plx \ |
| ; RUN: -r=%t2.bc,func1,l \ |
| ; RUN: -r=%t2.bc,func2,l \ |
| ; RUN: -r=%t2.bc,func3,l \ |
| ; RUN: -r=%t2.bc,callglobalfunc,l \ |
| ; RUN: -r=%t2.bc,callweakfunc,l |
| ; RUN: llvm-nm %t.o.1 | FileCheck %s --check-prefix=NM0 |
| ; RUN: llvm-nm %t.o.2 | FileCheck %s --check-prefix=NM1 |
| |
| ; Check that local values b and x, which are referenced on |
| ; llvm.used and llvm.compiler.used, respectively, are not promoted. |
| ; Similarly, foo which is defined in module level asm should not be |
| ; promoted. |
| ; NM0-DAG: d b |
| ; NM0-DAG: d x |
| ; NM0-DAG: t foo |
| ; NM0-DAG: T func1 |
| ; NM0-DAG: T func2 |
| ; NM0-DAG: T func3 |
| ; NM0-DAG: T callglobalfunc |
| ; NM0-DAG: T callweakfunc |
| ; NM0-DAG: T globalfunc |
| ; NM0-DAG: W weakfunc |
| |
| ; Ensure that foo, b and x are likewise not exported (imported as refs |
| ; into the other module), since they can't be promoted. Additionally, |
| ; referencing functions func2 and func3 should not have been |
| ; imported. However, we should have been able to import callglobalfunc |
| ; and callweakfunc (leaving undefined symbols globalfunc and weakfunc) |
| ; since globalfunc and weakfunc were defined but not local in module asm. |
| ; NM1-NOT: foo |
| ; NM1-NOT: b |
| ; NM1-NOT: x |
| ; NM1-DAG: U func1 |
| ; NM1-DAG: U func2 |
| ; NM1-DAG: U func3 |
| ; NM1-DAG: U globalfunc |
| ; NM1-DAG: U weakfunc |
| ; NM1-DAG: T main |
| ; NM1-NOT: foo |
| ; NM1-NOT: b |
| ; NM1-NOT: x |
| |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| @b = internal global i32 1, align 4 |
| @x = internal global i32 1, align 4 |
| |
| @llvm.compiler.used = appending global [1 x i8*] [i8* bitcast (i32* @b to i8*)], section "llvm.metadata" |
| @llvm.used = appending global [1 x i8*] [i8* bitcast (i32* @x to i8*)], section "llvm.metadata" |
| |
| module asm "\09.text" |
| module asm "\09.type\09foo,@function" |
| module asm "foo:" |
| module asm "\09movl b, %eax" |
| module asm "\09movl x, %edx" |
| module asm "\09ret " |
| module asm "\09.size\09foo, .-foo" |
| module asm "" |
| module asm "\09.globl\09globalfunc" |
| module asm "\09.type\09globalfunc,@function" |
| module asm "globalfunc:" |
| module asm "\09movl b, %eax" |
| module asm "\09movl x, %edx" |
| module asm "\09ret " |
| module asm "\09.size\09globalfunc, .-globalfunc" |
| module asm "" |
| module asm "\09.weak\09weakfunc" |
| module asm "\09.type\09weakfunc,@function" |
| module asm "weakfunc:" |
| module asm "\09movl b, %eax" |
| module asm "\09movl x, %edx" |
| module asm "\09ret " |
| module asm "\09.size\09weakfunc, .-weakfunc" |
| module asm "" |
| |
| declare i16 @foo() #0 |
| declare i16 @globalfunc() #0 |
| declare i16 @weakfunc() #0 |
| |
| define i32 @func1() #1 { |
| call i16 @foo() |
| ret i32 1 |
| } |
| |
| define i32 @func2() #1 { |
| %1 = load i32, i32* @b, align 4 |
| ret i32 %1 |
| } |
| |
| define i32 @func3() #1 { |
| %1 = load i32, i32* @x, align 4 |
| ret i32 %1 |
| } |
| |
| define i32 @callglobalfunc() #1 { |
| call i16 @globalfunc() |
| ret i32 1 |
| } |
| |
| define i32 @callweakfunc() #1 { |
| call i16 @weakfunc() |
| ret i32 1 |
| } |