1# REQUIRES: x86 2# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o 3# RUN: echo 'SECTIONS { .text : { *(.text*) } }' > %t1.script 4 5## Sections within the same output section can be freely folded. 6# RUN: ld.lld %t.o --script %t1.script --icf=all --print-icf-sections -o %t | FileCheck --check-prefix=ICF1 %s 7# RUN: llvm-readelf -S %t | FileCheck --check-prefix=SEC1 %s --implicit-check-not=.text 8 9# ICF1: selected section {{.*}}.o:(.text.foo0) 10# ICF1-NEXT: removing identical section {{.*}}.o:(.text.foo1) 11# ICF1-NEXT: removing identical section {{.*}}.o:(.text.bar0) 12# ICF1-NEXT: removing identical section {{.*}}.o:(.text.bar1) 13 14# SEC1: .text PROGBITS 0000000000000000 001000 000001 15 16## Sections with different output sections cannot be folded. Without the 17## linker script, .text.foo* and .text.bar* go to the same output section 18## .text and they will be folded. 19# RUN: echo 'SECTIONS { .text.foo : {*(.text.foo*)} .text.bar : {*(.text.bar*)} }' > %t2.script 20# RUN: ld.lld %t.o --script %t2.script --icf=all --print-icf-sections -o %t | FileCheck --check-prefix=ICF2 %s 21# RUN: llvm-readelf -S %t | FileCheck --check-prefix=SEC2 %s 22 23# ICF2: selected section {{.*}}.o:(.text.foo0) 24# ICF2-NEXT: removing identical section {{.*}}.o:(.text.foo1) 25# ICF2-NEXT: selected section {{.*}}.o:(.text.bar0) 26# ICF2-NEXT: removing identical section {{.*}}.o:(.text.bar1) 27 28# SEC2: .text.foo PROGBITS 0000000000000000 001000 000001 29# SEC2-NEXT: .text.bar PROGBITS 0000000000000001 001001 000001 30 31## .text.bar* are orphan sections. 32# RUN: echo 'SECTIONS { .text.foo : {*(.text.foo*)} }' > %t3.script 33# RUN: ld.lld %t.o -T %t3.script --icf=all --print-icf-sections -o %t3 | FileCheck --check-prefix=ICF3 %s 34# RUN: llvm-readelf -S %t3 | FileCheck --check-prefix=SEC3 %s 35 36# ICF3: selected section {{.*}}.o:(.text.foo0) 37# ICF3-NEXT: removing identical section {{.*}}.o:(.text.foo1) 38 39# SEC3: Name Type Address Off Size 40# SEC3: .text.foo PROGBITS 0000000000000000 001000 000001 41# SEC3-NEXT: .text PROGBITS 0000000000000004 001004 000000 42# SEC3-NEXT: .text.bar0 PROGBITS 0000000000000004 001004 000001 43# SEC3-NEXT: .text.bar1 PROGBITS 0000000000000005 001005 000001 44 45.section .text.foo0,"ax" 46ret 47.section .text.foo1,"ax" 48ret 49.section .text.bar0,"ax" 50ret 51.section .text.bar1,"ax" 52ret 53