derek.holloway
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41 lines
1.2 KiB
ArmAsm
41 lines
1.2 KiB
ArmAsm
// This test checks that when looking for a function corresponding to a
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// symbol, BOLT is not looking through a data area (constant island).
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# RUN: llvm-mc -filetype=obj -triple aarch64-unknown-unknown %s -o %t.o
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# RUN: %clang %cflags %t.o -o %t.exe -Wl,-q
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# RUN: llvm-bolt %t.exe -o %t.bolt 2>&1 | FileCheck %s
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// Before adding a check for constant islands, BOLT would exit with an error
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// of the form: "symbol not found" and throw an LLVM UNREACHABLE error.
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# CHECK-NOT: symbol not found
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# CHECK-NOT: UNREACHABLE
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// Now BOLT throws a warning and does not crash.
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# CHECK: BOLT-WARNING: corrupted control flow detected in function main{{.*}}:
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# CHECK-SAME: an external branch/call targets an invalid instruction in
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# CHECK-SAME: function foo{{.*}} at address {{.*}}; ignoring both functions
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# CHECK: BOLT-WARNING: ignoring entry point at address 0x{{[0-9a-f]+}} in constant island of function foo{{.*}}
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.text
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.global main
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.type main, %function
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main:
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add x0, x1, x1
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bl first_block
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ret
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.type foo, %function
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foo:
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nop
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$d:
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first_block:
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add x0, x1, x1
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bl second_block
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ret
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$x:
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second_block:
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add x0, x1, x1
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ret
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