forked from OSchip/llvm-project
95 lines
3.7 KiB
ArmAsm
95 lines
3.7 KiB
ArmAsm
# REQUIRES: ppc
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# RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %s -o %t.o
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# RUN: ld.lld --defsym callee=0x12010010 --defsym tail_callee=0x12010020 \
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# RUN: %t.o -o %t
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# RUN: llvm-objdump -d %t | FileCheck %s
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# RUN: ld.lld --defsym callee=0x12010010 --defsym tail_callee=0x12010020 \
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# RUN: %t.o -o %t
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# RUN: llvm-objdump -d %t | FileCheck %s
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# RUN: ld.lld --defsym callee=0xE010014 --defsym tail_callee=0xE010024 \
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# RUN: %t.o -o %t
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# RUN: llvm-objdump -d %t | FileCheck --check-prefix=NEGOFFSET %s
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# RUN: ld.lld --defsym callee=0x12010018 --defsym tail_callee=0x12010028 \
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# RUN: %t.o -o %t
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# RUN: llvm-objdump -d %t | FileCheck --check-prefix=THUNK %s
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# RUN: llvm-readelf --sections %t | FileCheck --check-prefix=BRANCHLT %s
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# RUN: not ld.lld --defsym callee=0x1001002D --defsym tail_callee=0x1001002F \
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# RUN: %t.o -o %t 2>&1 | FileCheck --check-prefix=MISSALIGNED %s
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# RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %s -o %t.o
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# RUN: ld.lld --defsym callee=0x12010010 --defsym tail_callee=0x12010020 \
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# RUN: %t.o -o %t
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# RUN: llvm-objdump -d %t | FileCheck %s
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# RUN: ld.lld --defsym callee=0x12010010 --defsym tail_callee=0x12010020 \
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# RUN: %t.o -o %t
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# RUN: llvm-objdump -d %t | FileCheck %s
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# RUN: ld.lld --defsym callee=0xE010014 --defsym tail_callee=0xE010024 \
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# RUN: %t.o -o %t
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# RUN: llvm-objdump -d %t | FileCheck --check-prefix=NEGOFFSET %s
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# RUN: ld.lld --defsym callee=0x12010018 --defsym tail_callee=0x12010028 \
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# RUN: %t.o -o %t
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# RUN: llvm-objdump -d %t | FileCheck --check-prefix=THUNK %s
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# RUN: llvm-readelf --sections %t | FileCheck --check-prefix=BRANCHLT %s
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# RUN: not ld.lld --defsym callee=0x1001002D --defsym tail_callee=0x1001002F \
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# RUN: %t.o -o %t 2>&1 | FileCheck --check-prefix=MISSALIGNED %s
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# MISSALIGNED: ld.lld: error: {{.*}}.o:(.text+0x14): improper alignment for relocation R_PPC64_REL24: 0x19 is not aligned to 4 bytes
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# MISSALIGNED: ld.lld: error: {{.*}}.o:(.text+0x24): improper alignment for relocation R_PPC64_REL24: 0xB is not aligned to 4 bytes
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.global test
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.p2align 4
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.type test,@function
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test:
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.Lgep:
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addis 2, 12, .TOC.-.Lgep@ha
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addi 2, 2, .TOC.-.Lgep@l
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.Llep:
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.localentry test, .Llep-.Lgep
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mflr 0
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std 0, 16(1)
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stdu 1, 32(1)
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bl callee
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addi 1, 1, 32
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ld 0, 16(1)
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mtlr 0
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b tail_callee
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# Check that we are branching to the definitions, and not range-extending
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# thunks.
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# CHECK-LABEL: test
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# CHECK: 10010014: {{.*}} bl .+33554428
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# CHECK: 10010024: {{.*}} b .+33554428
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# NEGOFFSET-LABEL: test
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# NEGOFFSET: 10010014: {{.*}} bl .+33554432
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# NEGOFFSET: 10010024: {{.*}} b .+33554432
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# .branch_lt[0]
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# THUNK-LABEL: __long_branch_callee:
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# THUNK-NEXT: 10010000: {{.*}} addis 12, 2, -1
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# THUNK-NEXT: ld 12, -32768(12)
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# THUNK-NEXT: mtctr 12
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# THUNK-NEXT: bctr
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# .branch_lt[1]
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# THUNK-LABEL: __long_branch_tail_callee:
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# THUNK-NEXT: 10010010: {{.*}} addis 12, 2, -1
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# THUNK-NEXT: ld 12, -32760(12)
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# THUNK-NEXT: mtctr 12
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# THUNK-NEXT: bctr
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# Each call now branches to a thunk, and although it is printed as positive
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# the offset is interpreted as a signed 26 bit value so 67108812 is actually
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# -52.
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# THUNK-LABEL: test:
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# THUNK: 10010034: {{.*}} bl .+67108812
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# THUNK: 10010044: {{.*}} b .+67108812
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# The offset from the TOC to the .branch_lt section is (-1 << 16) - 32768.
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# Name Type Address Off Size
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# BRANCHLT: .branch_lt PROGBITS 0000000010020000 020000 000010
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# BRANCHLT: .got PROGBITS 0000000010030000 030000 000008
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# BRANCHLT-NOT: .plt
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