diff options
Diffstat (limited to 'test/ELF/ppc64-long-branch.s')
| -rw-r--r-- | test/ELF/ppc64-long-branch.s | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/test/ELF/ppc64-long-branch.s b/test/ELF/ppc64-long-branch.s new file mode 100644 index 000000000000..db662d926df0 --- /dev/null +++ b/test/ELF/ppc64-long-branch.s @@ -0,0 +1,121 @@ +# REQUIRES: ppc + +# RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %s -o %t.o +# RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %p/Inputs/ppc64-func-global-entry.s -o %t2.o +# RUN: ld.lld -shared %t2.o -o %t3.so +# RUN: ld.lld --no-toc-optimize %t.o %t3.so -o %t +# RUN: llvm-objdump -d -start-address=0x10010000 -stop-address=0x10010018 %t | FileCheck %s -check-prefix=CALLEE_DUMP +# RUN: llvm-objdump -d -start-address=0x12010020 -stop-address=0x12010084 %t | FileCheck %s -check-prefix=CALLER_DUMP +# RUN: llvm-objdump -D -start-address=0x12020008 -stop-address=0x12020010 %t | FileCheck %s -check-prefix=BRANCH_LT_LE +# RUN: llvm-readelf --sections %t | FileCheck %s -check-prefix=SECTIONS + +# RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %s -o %t.o +# RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %p/Inputs/ppc64-func-global-entry.s -o %t2.o +# RUN: ld.lld -shared %t2.o -o %t3.so +# RUN: ld.lld --no-toc-optimize %t.o %t3.so -o %t +# RUN: llvm-objdump -d -start-address=0x10010000 -stop-address=0x10010018 %t | FileCheck %s -check-prefix=CALLEE_DUMP +# RUN: llvm-objdump -d -start-address=0x12010020 -stop-address=0x12010084 %t | FileCheck %s -check-prefix=CALLER_DUMP +# RUN: llvm-objdump -D -start-address=0x12020008 -stop-address=0x12020010 %t | FileCheck %s -check-prefix=BRANCH_LT_BE +# RUN: llvm-readelf --sections %t | FileCheck %s -check-prefix=SECTIONS + + .text + .abiversion 2 + .protected callee + .globl callee + .p2align 4 + .type callee,@function +callee: +.Lfunc_gep0: + addis 2, 12, .TOC.-.Lfunc_gep0@ha + addi 2, 2, .TOC.-.Lfunc_gep0@l +.Lfunc_lep0: + .localentry callee, .Lfunc_lep0-.Lfunc_gep0 + addis 4, 2, .LC0@toc@ha + ld 4, .LC0@toc@l(4) + lwz 3, 0(4) + blr + + .space 0x2000000 + + .protected _start + .global _start + .p2align 4 + .type _start,@function +_start: +.Lfunc_begin1: +.Lfunc_gep1: + addis 2, 12, .TOC.-.Lfunc_gep1@ha + addi 2, 2, .TOC.-.Lfunc_gep1@l +.Lfunc_lep1: + .localentry _start, .Lfunc_lep1-.Lfunc_gep1 + mflr 0 + std 0, 16(1) + stdu 1, -32(1) + bl callee + bl foo_external_diff + nop + addi 1, 1, 32 + ld 0, 16(1) + mtlr 0 + + addis 4, 2, .LC1@toc@ha + ld 4, .LC1@toc@l(4) + lwz 4, 0(4) + add 3, 3, 4 + blr + + + .section .toc,"aw",@progbits +.LC0: + .tc a[TC],a +.LC1: + .tc b[TC],b + + + .data + .type a,@object + .globl a + .p2align 2 +a: + .long 11 + .size a, 4 + + .type b,@object + .global b + .p2align 2 +b: + .long 33 + .size b, 4 + +# Verify address of the callee +# CALLEE_DUMP: callee: +# CALLEE_DUMP: 10010000: {{.*}} addis 2, 12, 515 +# CALLEE_DUMP: 10010004: {{.*}} addi 2, 2, -32544 +# CALLEE_DUMP: 10010008: {{.*}} addis 4, 2, 0 + +# Verify the address of _start, and the call to the long-branch thunk. +# CALLER_DUMP: _start: +# CALLER_DUMP: 12010020: {{.*}} addis 2, 12, 3 +# CALLER_DUMP: 12010038: {{.*}} bl .+56 + +# Verify the thunks contents: TOC-pointer + offset = .branch_lt[0] +# 0x120380e8 + (-2 << 16 + 32552) = 0x12020008 +# CALLER_DUMP: __long_branch_callee: +# CALLER_DUMP: 12010060: {{.*}} addis 12, 2, -2 +# CALLER_DUMP: 12010064: {{.*}} ld 12, 32552(12) +# CALLER_DUMP: 12010068: {{.*}} mtctr 12 +# CALLER_DUMP: 1201006c: {{.*}} bctr + +# BRANCH_LT_LE: Disassembly of section .branch_lt: +# BRANCH_LT_LE-NEXT: .branch_lt: +# BRANCH_LT_LE-NEXT: 12020008: 08 00 01 10 +# BRANCH_LT_LE-NEXT: 1202000c: 00 00 00 00 + +# BRANCH_LT_BE: Disassembly of section .branch_lt: +# BRANCH_LT_BE-NEXT: .branch_lt: +# BRANCH_LT_BE-NEXT: 12020008: 00 00 00 00 +# BRANCH_LT_BE-NEXT: 1202000c: 10 01 00 08 + +# [Nr] Name Type Address Off Size +# SECTIONS: [ 9] .branch_lt PROGBITS 0000000012020008 2020008 000008 +# SECTIONS: [11] .got PROGBITS 00000000120300e0 20300e0 000008 |