08f56926c2
Summary: The patch moves the shortenInstructions and nop remove to separate binary passes. As a result when llvm-bolt optimizations stage will begin the instructions of the binary functions will be absolutely the same as it was in the binary. This is needed for the golang support by llvm-bolt. Some of the tests must be changed, since bb alignment nops might create unreachable BBs in original functions. Vladislav Khmelevsky, Advanced Software Technology Lab, Huawei (cherry picked from FBD32896517)
27 lines
1.9 KiB
Plaintext
27 lines
1.9 KiB
Plaintext
# Checks that llvm-bolt is able to read data generated by perf2bolt, update the
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# CFG edges accordingly with absolute number of branches and mispredictions,
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# infer fallthrough branch info and reorder basic blocks using a greedy
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# heuristic, or find the optimal solution if the function is small enough.
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# Also checks that llvm-bolt disassembler and CFG builder is working properly.
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RUN: yaml2obj %p/Inputs/blarge.yaml &> %t.exe
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RUN: llvm-bolt %t.exe -o /dev/null -data %p/Inputs/blarge.fdata \
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RUN: -reorder-blocks=normal -print-cfg -print-reordered \
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RUN: -funcs=main,SolveCubic,usqrt -sequential-disassembly 2>&1 | FileCheck %s
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# Original order
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CHECK: Binary Function "main"
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CHECK: BB Layout : .LBB00, .Ltmp1, .Ltmp0, .Ltmp3, .Ltmp2, .Ltmp5, .Ltmp4, .Ltmp7, .Ltmp6, .Ltmp9, .Ltmp8, .Ltmp11, .Ltmp10, .Ltmp13, .Ltmp12, .Ltmp15, .Ltmp14, .Ltmp21, .Ltmp20, .Ltmp19, .Ltmp18, .Ltmp17, .Ltmp16, .LFT0, .LFT1, .LFT2, .LFT3, .Ltmp22, .LFT4, .Ltmp23, .LFT5, .Ltmp24, .LFT6, .Ltmp25, .LFT7
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CHECK: Binary Function "SolveCubic"
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CHECK: BB Layout : .LBB01, .LFT8, .LFT9, .Ltmp33, .LFT10, .Ltmp28, .LFT11, .Ltmp26, .LFT12, .Ltmp37, .Ltmp36, .Ltmp35, .Ltmp34, .Ltmp27, .Ltmp32, .Ltmp31, .Ltmp30, .Ltmp29
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CHECK: Binary Function "usqrt"
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CHECK: BB Layout : .LBB02, .Ltmp39, .LFT13, .Ltmp38, .LFT14
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# New order
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CHECK: Binary Function "main"
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CHECK: BB Layout : .LBB00, .Ltmp1, .Ltmp0, .Ltmp3, .Ltmp2, .Ltmp5, .Ltmp4, .Ltmp7, .Ltmp6, .Ltmp9, .Ltmp8, .Ltmp11, .Ltmp10, .Ltmp13, .Ltmp12, .Ltmp15, .Ltmp14, .Ltmp21, .Ltmp16, .Ltmp18, .Ltmp17, .LFT0, .Ltmp19, .LFT1, .Ltmp20, .LFT2, .LFT3, .Ltmp22, .LFT4, .Ltmp23, .LFT5, .Ltmp24, .LFT6, .Ltmp25, .LFT7
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CHECK: Binary Function "SolveCubic"
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CHECK: BB Layout : .LBB01, .Ltmp26, .LFT12, .Ltmp37, .Ltmp36, .Ltmp35, .Ltmp34, .LFT8, .LFT9, .Ltmp33, .Ltmp28, .LFT10, .Ltmp27, .Ltmp32, .Ltmp31, .Ltmp30, .Ltmp29
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CHECK: Binary Function "usqrt"
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CHECK: BB Layout : .LBB02, .Ltmp38, .Ltmp39, .LFT13, .LFT14
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