derek.holloway
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66 lines
2.2 KiB
ArmAsm
66 lines
2.2 KiB
ArmAsm
# This test checks that splitting functions which contain short range
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# conditional branches works in compact code model without relying on
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# relocations.
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# REQUIRES: system-linux, asserts
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# RUN: %clang %cflags -march=armv9-a+cmpbr -Wl,-q %s -o %t -DNUM_NOPS=0 -DRESERVE_SPACE=0
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# RUN: link_fdata --no-lbr %s %t %t.fdata
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# RUN: llvm-strip --strip-unneeded %t
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# RUN: llvm-bolt %t -o %t.bolt --data %t.fdata -split-functions --compact-code-model
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# RUN: llvm-objdump -d %t.bolt | FileCheck %s
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# RUN: %clang %cflags -march=armv9-a+cmpbr -Wl,-q %s -o %t -DNUM_NOPS=256 -DRESERVE_SPACE=0
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# RUN: link_fdata --no-lbr %s %t %t.fdata
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# RUN: llvm-strip --strip-unneeded %t
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# RUN: llvm-bolt %t -o %t.bolt --data %t.fdata -split-functions --compact-code-model --keep-nops
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# RUN: llvm-objdump -d %t.bolt | FileCheck %s
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# RUN: %clang %cflags -march=armv9-a+cmpbr -Wl,-q %s -o %t -DNUM_NOPS=0 -DRESERVE_SPACE=1
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# RUN: link_fdata --no-lbr %s %t %t.fdata
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# RUN: llvm-strip --strip-unneeded %t
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# RUN: not llvm-bolt %t -o %t.bolt --data %t.fdata -split-functions --compact-code-model 2>&1 \
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# RUN: | FileCheck %s --check-prefix=BEYOND-128MB
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.globl foo
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.type foo, %function
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foo:
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.entry_foo:
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# FDATA: 1 foo #.entry_foo# 10
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cbgt x0, #0, .Lcold_foo
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mov x0, #1
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.Lcold_foo:
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ret
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.globl large_function
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.type large_function, %function
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large_function:
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.entry_large_function:
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# FDATA: 1 large_function #.entry_large_function# 10
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.rept NUM_NOPS
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nop
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.endr
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ret
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.if RESERVE_SPACE
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.space 0x8000000
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.endif
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## Force relocation mode.
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.reloc 0, R_AARCH64_NONE
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# CHECK: Disassembly of section .text:
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# CHECK: <foo>:
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# CHECK-NEXT: {{.*}} cbgt x0, #0x0, 0x[[ADDR0:[0-9a-f]+]] <{{.*}}>
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# CHECK-NEXT: {{.*}} b 0x[[ADDR1:[0-9a-f]+]] <{{.*}}>
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# CHECK-NEXT: [[ADDR0]]: {{.*}} b 0x[[ADDR2:[0-9a-f]+]] <{{.*}}>
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# CHECK: Disassembly of section .text.cold:
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# CHECK: <foo.cold.0>:
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# CHECK-NEXT: [[ADDR1]]: {{.*}} mov x0, #0x1 // =1
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# CHECK-NEXT: [[ADDR2]]: {{.*}} ret
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# BEYOND-128MB: BOLT-ERROR: JITLink failed: In graph in-memory object file, section .text: relocation target {{0x[0-9a-f]+}} (<anonymous symbol>) is out of range of Branch26PCRel fixup at address {{0x[0-9a-f]+}}
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