[BOLT][RISCV] Support split function fragments

[Thrrreeee]

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✅ With the latest revision this PR passed the C/C++ code formatter.

[github-actions]

🐧 Linux x64 Test Results

• 733 tests passed
• 62 tests skipped
• 1 test failed

Failed Tests

(click on a test name to see its output)

BOLT

BOLT.RISCV/split-functions-long-jump.s

Exit Code: 1

Command Output (stdout):
--
# RUN: at line 5
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-mc -triple riscv64 -mattr=+c -filetype=obj -o /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.o /home/gha/actions-runner/_work/llvm-project/llvm-project/bolt/test/RISCV/split-functions-long-jump.s
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-mc -triple riscv64 -mattr=+c -filetype=obj -o /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.o /home/gha/actions-runner/_work/llvm-project/llvm-project/bolt/test/RISCV/split-functions-long-jump.s
# note: command had no output on stdout or stderr
# RUN: at line 6
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/ld.lld --emit-relocs -e _start -o /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.exe /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.o
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/ld.lld --emit-relocs -e _start -o /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.exe /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.o
# note: command had no output on stdout or stderr
# RUN: at line 7
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-bolt --runtime-instrumentation-lib=/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/bolt_rt-bins/lib/libbolt_rt_instr.a --runtime-hugify-lib=/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/bolt_rt-bins/lib/libbolt_rt_hugify.a /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.exe -o /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.bolt -split-functions    -split-strategy=random2 -bolt-seed=1
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-bolt --runtime-instrumentation-lib=/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/bolt_rt-bins/lib/libbolt_rt_instr.a --runtime-hugify-lib=/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/bolt_rt-bins/lib/libbolt_rt_hugify.a /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.exe -o /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.bolt -split-functions -split-strategy=random2 -bolt-seed=1
# .---command stdout------------
# | BOLT-INFO: Target architecture: riscv64
# | BOLT-INFO: BOLT version: fd40c24d5d93e592587aab009ea156c5a712cd0a
# | BOLT-INFO: first alloc address is 0x10000
# | BOLT-INFO: creating new program header table at address 0x210000, offset 0x200000
# | BOLT-INFO: enabling relocation mode
# | BOLT-INFO: static input executable detected
# | BOLT-INFO: 0 out of 1 functions in the binary (0.0%) have non-empty execution profile
# | BOLT-INFO: relaxing RISC-V cross-fragment branches
# `-----------------------------
# RUN: at line 9
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-objdump -d --show-all-symbols /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.bolt | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/bolt/test/RISCV/split-functions-long-jump.s
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-objdump -d --show-all-symbols /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.bolt
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-objdump: warning: '/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.bolt': could not parse ISA mapping symbol '$xrv64i2p1_c2p0_zca1p0.cold.0': string may only contain [a-z0-9_]; falling back to default disassembler
# `-----------------------------
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/bolt/test/RISCV/split-functions-long-jump.s
# note: command had no output on stdout or stderr
# RUN: at line 10
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-readobj --symbols /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.bolt | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck --check-prefix=SYMBOLS /home/gha/actions-runner/_work/llvm-project/llvm-project/bolt/test/RISCV/split-functions-long-jump.s
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-readobj --symbols /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.bolt
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck --check-prefix=SYMBOLS /home/gha/actions-runner/_work/llvm-project/llvm-project/bolt/test/RISCV/split-functions-long-jump.s
# note: command had no output on stdout or stderr
# RUN: at line 11
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-mc -triple riscv32 -mattr=+c -filetype=obj -o /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.32.o /home/gha/actions-runner/_work/llvm-project/llvm-project/bolt/test/RISCV/split-functions-long-jump.s
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-mc -triple riscv32 -mattr=+c -filetype=obj -o /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.32.o /home/gha/actions-runner/_work/llvm-project/llvm-project/bolt/test/RISCV/split-functions-long-jump.s
# note: command had no output on stdout or stderr
# RUN: at line 12
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/ld.lld --emit-relocs -e _start -o /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.32.exe /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.32.o
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/ld.lld --emit-relocs -e _start -o /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.32.exe /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.32.o
# note: command had no output on stdout or stderr
# RUN: at line 13
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-bolt --runtime-instrumentation-lib=/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/bolt_rt-bins/lib/libbolt_rt_instr.a --runtime-hugify-lib=/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/bolt_rt-bins/lib/libbolt_rt_hugify.a /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.32.exe -o /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.32.bolt -split-functions    -split-strategy=random2 -bolt-seed=1
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-bolt --runtime-instrumentation-lib=/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/bolt_rt-bins/lib/libbolt_rt_instr.a --runtime-hugify-lib=/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/bolt_rt-bins/lib/libbolt_rt_hugify.a /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.32.exe -o /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.32.bolt -split-functions -split-strategy=random2 -bolt-seed=1
# .---command stdout------------
# | BOLT-INFO: Target architecture: riscv32
# | BOLT-INFO: BOLT version: fd40c24d5d93e592587aab009ea156c5a712cd0a
# | BOLT-INFO: first alloc address is 0x10000
# | BOLT-INFO: creating new program header table at address 0x210000, offset 0x200000
# | BOLT-INFO: enabling relocation mode
# | BOLT-INFO: static input executable detected
# | BOLT-INFO: 0 out of 1 functions in the binary (0.0%) have non-empty execution profile
# | BOLT-INFO: relaxing RISC-V cross-fragment branches
# `-----------------------------
# RUN: at line 15
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-objdump -d --show-all-symbols /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.32.bolt | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/bolt/test/RISCV/split-functions-long-jump.s
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-objdump -d --show-all-symbols /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.32.bolt
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-objdump: warning: '/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/bolt/test/RISCV/Output/split-functions-long-jump.s.tmp.32.bolt': could not parse ISA mapping symbol '$xrv32i2p1_c2p0_zca1p0.cold.0': string may only contain [a-z0-9_]; falling back to default disassembler
# `-----------------------------
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/bolt/test/RISCV/split-functions-long-jump.s
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/bolt/test/RISCV/split-functions-long-jump.s:23:16: error: CHECK-LABEL: expected string not found in input
# | # CHECK-LABEL: <secondary>:
# |                ^
# | <stdin>:16:19: note: scanning from here
# | 00400000 <_start>:
# |                   ^
# | <stdin>:25:31: note: possible intended match here
# | 00400040 <$xrv32i2p1_c2p0_zca1p0.cold.0>:
# |                               ^
# | 
# | Input file: <stdin>
# | Check file: /home/gha/actions-runner/_work/llvm-project/llvm-project/bolt/test/RISCV/split-functions-long-jump.s
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |             .
# |             .
# |             .
# |            11:  110bc: 8082 ret 
# |            12:  
# |            13: Disassembly of section .text: 
# |            14:  
# |            15: 00400000 <$xrv32i2p1_c2p0_zca1p0>: 
# |            16: 00400000 <_start>: 
# | label:23'0                      {   search range start (exclusive)
# | label:23'1                          error: no match found in search range
# |            17:  400000: c509 beqz a0, 0x40000a <_start+0xa> 
# |            18:  400002: 00000517 auipc a0, 0x0 
# |            19:  400006: 03e50067 jr 0x3e(a0) <_start.cold.0> 
# |            20:  40000a: 00000517 auipc a0, 0x0 
# |            21:  40000e: 03a50067 jr 0x3a(a0) <_start.cold.0+0x4> 
# |            22:  
# |            23: Disassembly of section .text.cold: 
# |            24:  
# |            25: 00400040 <$xrv32i2p1_c2p0_zca1p0.cold.0>: 
# | label:23'2                                   ?             possible intended match
# |            26: 00400040 <_start.cold.0>: 
# |            27:  400040: 4505 li a0, 0x1 
# |            28:  400042: 8082 ret 
# |            29:  400044: 4509 li a0, 0x2 
# |            30:  400046: 8082 ret 
# | label:23'3                       } search range end (exclusive)
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1

--

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