forked from OSchip/llvm-project
42 lines
1.2 KiB
ArmAsm
42 lines
1.2 KiB
ArmAsm
# This test reproduces the issue with inserting updated CFI in shrink wrapping
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# into the first basic block.
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# REQUIRES: system-linux
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# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %s -o %t.o
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# RUN: link_fdata %s %t.o %t.fdata
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# RUN: llvm-strip --strip-unneeded %t.o
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# RUN: %clang %cflags %t.o -o %t.exe -Wl,-q -nostdlib
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# RUN: llvm-bolt %t.exe -o %t.out --data %t.fdata --frame-opt=all --lite=0 \
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# RUN: --print-fop 2>&1 | FileCheck %s
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# Check shrink wrapping results:
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# CHECK: BOLT-INFO: Shrink wrapping moved 0 spills inserting load/stores and 1 spills inserting push/pops
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# Check that CFI is successfully inserted into the first basic block:
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# CHECK: Binary Function "_start" after frame-optimizer
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# CHECK: .LBB00 (2 instructions, align : 1)
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# CHECK-NEXT: Entry Point
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# CHECK: 00000000: !CFI {{.*}}
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# CHECK-NEXT: 00000000: je .Ltmp{{.*}}
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.globl _start
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_start:
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.cfi_startproc
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# FDATA: 0 [unknown] 0 1 _start 0 0 6
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# !CFI OpOffset for reg3/rbx is inserted into this block.
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je a
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b: jne _start
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# FDATA: 1 _start #b# 1 _start #c# 0 3
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c:
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push %rbx
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.cfi_offset 3, 4
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pop %rbx
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# This basic block is treated as having 0 execution count.
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# push and pop will be sinked into this block.
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a:
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ud2
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.cfi_endproc
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