derek.holloway
7502bf64a4
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66 lines
1.8 KiB
ArmAsm
66 lines
1.8 KiB
ArmAsm
/// Test that annotations are properly carried over to fixed calls.
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/// Note that --enable-bat is used to force offsets to be kept.
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// RUN: llvm-mc -triple riscv64 -mattr=+c -filetype obj -o %t.o %s
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// RUN: ld.lld --emit-relocs -o %t %t.o
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// RUN: llvm-bolt --enable-bat --print-cfg --print-fix-riscv-calls \
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// RUN: -o %t.null %t | FileCheck %s
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.text
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.option norvc
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.global f
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.p2align 1
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f:
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ret
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.size f, .-f
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// CHECK-LABEL: Binary Function "_start" after building cfg {
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// CHECK: auipc ra, f
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// CHECK-NEXT: jalr -0x4(ra) # Offset: 4
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// CHECK-NEXT: jal f # Offset: 8
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// CHECK-NEXT: j f # TAILCALL # Offset: 12
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// CHECK-LABEL: Binary Function "long_tail" after building cfg {
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// CHECK: auipc t1, f
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// CHECK-NEXT: jr -0x18(t1) # TAILCALL # Offset: 8
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// CHECK-LABEL: Binary Function "compressed_tail" after building cfg {
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// CHECK: jr a0 # TAILCALL # Offset: 0
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// CHECK-LABEL: Binary Function "_start" after fix-riscv-calls {
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// CHECK: call f # Offset: 4
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// CHECK-NEXT: call f # Offset: 8
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// CHECK-NEXT: tail f # TAILCALL # Offset: 12
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// CHECK-LABEL: Binary Function "long_tail" after fix-riscv-calls {
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// CHECK: tail f # TAILCALL # Offset: 8
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// CHECK-LABEL: Binary Function "compressed_tail" after fix-riscv-calls {
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// CHECK: jr a0 # TAILCALL # Offset: 0
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.globl _start
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.p2align 1
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_start:
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call f
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jal f
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jal zero, f
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.size _start, .-_start
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.globl long_tail
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.p2align 1
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long_tail:
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// NOTE: BOLT assumes indirect calls in single-BB functions are tail calls
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// so artificially introduce a second BB to force RISC-V-specific analysis
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// to get triggered.
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beq a0, a1, 1f
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1:
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tail f
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.size long_tail, .-long_tail
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.globl compressed_tail
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.p2align 1
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.option rvc
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compressed_tail:
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c.jr a0
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.size compressed_tail, .-compressed_tail
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