forked from OSchip/llvm-project
151 lines
6.2 KiB
ArmAsm
151 lines
6.2 KiB
ArmAsm
// REQUIRES: arm
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// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t
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// RUN: ld.lld %t -o %t2
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// The output file is large, most of it zeroes. We dissassemble only the
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// parts we need to speed up the test and avoid a large output file
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// RUN: llvm-objdump -d %t2 --start-address=0x100000 --stop-address=0x10000c | FileCheck --check-prefix=CHECK1 %s
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// RUN: llvm-objdump -d %t2 --start-address=0x200000 --stop-address=0x200002 | FileCheck --check-prefix=CHECK2 %s
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// RUN: llvm-objdump -d %t2 --start-address=0x300000 --stop-address=0x300002 | FileCheck --check-prefix=CHECK3 %s
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// RUN: llvm-objdump -d %t2 --start-address=0x400000 --stop-address=0x400006 | FileCheck --check-prefix=CHECK4 %s
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// RUN: llvm-objdump -d %t2 --start-address=0x1000000 --stop-address=0x1000036 | FileCheck --check-prefix=CHECK5 %s
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// RUN: llvm-objdump -d %t2 --start-address=0x1100000 --stop-address=0x1100010 | FileCheck --check-prefix=CHECK6 %s
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// RUN: llvm-objdump -d %t2 --start-address=0x1400004 --stop-address=0x140000c | FileCheck --check-prefix=CHECK7 %s
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// RUN: llvm-objdump -d %t2 --start-address=0x1e00000 --stop-address=0x1e00006 | FileCheck --check-prefix=CHECK8 %s
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// RUN: llvm-objdump -d %t2 --start-address=0x2200000 --stop-address=0x220000a | FileCheck --check-prefix=CHECK9 %s
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// RUN: llvm-objdump -d %t2 --start-address=0x2300000 --stop-address=0x230000a | FileCheck --check-prefix=CHECK10 %s
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// Test the Range extension Thunks for Thumb when all the code is in a single
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// OutputSection. The Thumb unconditional branch b.w and branch and link bl
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// instructions have a range of 16Mb. We create a series of Functions a
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// megabyte apart. We expect range extension thunks to be created when a
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// branch is out of range. Thunks will be reused whenever they are in range
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.syntax unified
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// Define a function aligned on a megabyte boundary
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.macro FUNCTION suff
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.section .text.\suff\(), "ax", %progbits
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.thumb
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.balign 0x100000
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.globl tfunc\suff\()
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.type tfunc\suff\(), %function
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tfunc\suff\():
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bx lr
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.endm
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.section .text, "ax", %progbits
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.thumb
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.globl _start
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_start:
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// tfunc00 and tfunc15 are within 16Mb no Range Thunks expected
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bl tfunc00
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bl tfunc15
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// tfunc16 is > 16Mb away, expect a Range Thunk to be generated, to go into
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// the first of the pre-created ThunkSections.
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bl tfunc16
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// CHECK1: Disassembly of section .text:
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// CHECK1-EMPTY:
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// CHECK1-NEXT: <_start>:
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// CHECK1-NEXT: 100000: ff f0 fe ff bl 0x200000 <tfunc00>
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// CHECK1-NEXT: 100004: ff f3 fc d7 bl 0x1100000 <tfunc15>
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// CHECK1-NEXT: 100008: ff f2 fc d7 bl 0x1000004 <__Thumbv7ABSLongThunk_tfunc16>
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FUNCTION 00
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// CHECK2: <tfunc00>:
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// CHECK2-NEXT: 200000: 70 47 bx lr
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FUNCTION 01
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// CHECK3: <tfunc01>:
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// CHECK3-NEXT: 300000: 70 47 bx lr
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FUNCTION 02
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// tfunc28 is > 16Mb away, expect a Range Thunk to be generated, to go into
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// the first of the pre-created ThunkSections.
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b.w tfunc28
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// CHECK4: <tfunc02>:
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// CHECK4-NEXT: 400000: 70 47 bx lr
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// CHECK4-NEXT: 400002: 00 f0 01 90 b.w 0x1000008 <__Thumbv7ABSLongThunk_tfunc28>
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FUNCTION 03
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FUNCTION 04
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FUNCTION 05
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FUNCTION 06
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FUNCTION 07
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FUNCTION 08
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FUNCTION 09
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FUNCTION 10
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FUNCTION 11
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FUNCTION 12
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FUNCTION 13
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FUNCTION 14
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// Expect precreated ThunkSection here
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// CHECK5: <__Thumbv7ABSLongThunk_tfunc16>:
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// CHECK5-NEXT: 1000004: ff f1 fc bf b.w 0x1200000 <tfunc16>
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// CHECK5: <__Thumbv7ABSLongThunk_tfunc28>:
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// CHECK5-NEXT: 1000008: ff f1 fa 97 b.w 0x1e00000 <tfunc28>
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// CHECK5: <__Thumbv7ABSLongThunk_tfunc32>:
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// CHECK5-NEXT: 100000c: 40 f2 01 0c movw r12, #1
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// CHECK5-NEXT: 1000010: c0 f2 20 2c movt r12, #544
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// CHECK5-NEXT: 1000014: 60 47 bx r12
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// CHECK5: <__Thumbv7ABSLongThunk_tfunc33>:
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// CHECK5-NEXT: 1000016: 40 f2 01 0c movw r12, #1
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// CHECK5-NEXT: 100001a: c0 f2 30 2c movt r12, #560
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// CHECK5-NEXT: 100001e: 60 47 bx r12
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// CHECK5: <__Thumbv7ABSLongThunk_tfunc02>:
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// CHECK5-NEXT: 1000020: ff f7 ee 97 b.w 0x400000 <tfunc02>
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FUNCTION 15
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// tfunc00 and tfunc01 are < 16Mb away, expect no range extension thunks
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bl tfunc00
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bl tfunc01
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// tfunc32 and tfunc33 are > 16Mb away, expect range extension thunks in the
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// precreated thunk section
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bl tfunc32
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bl tfunc33
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// CHECK6: <tfunc15>:
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// CHECK6-NEXT: 1100000: 70 47 bx lr
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// CHECK6-NEXT: 1100002: ff f4 fd d7 bl 0x200000 <tfunc00>
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// CHECK6-NEXT: 1100006: ff f5 fb d7 bl 0x300000 <tfunc01>
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// CHECK6-NEXT: 110000a: ff f6 ff ff bl 0x100000c <__Thumbv7ABSLongThunk_tfunc32>
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// CHECK6-NEXT: 110000e: 00 f7 02 f8 bl 0x1000016 <__Thumbv7ABSLongThunk_tfunc33>
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FUNCTION 16
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FUNCTION 17
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FUNCTION 18
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// Expect another precreated thunk section here
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// CHECK7: <__Thumbv7ABSLongThunk_tfunc15>:
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// CHECK7-NEXT: 1400004: ff f4 fc bf b.w 0x1100000 <tfunc15>
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// CHECK7: <__Thumbv7ABSLongThunk_tfunc16>:
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// CHECK7-NEXT: 1400008: ff f5 fa bf b.w 0x1200000 <tfunc16>
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FUNCTION 19
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FUNCTION 20
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FUNCTION 21
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FUNCTION 22
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FUNCTION 23
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FUNCTION 24
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FUNCTION 25
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FUNCTION 26
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FUNCTION 27
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FUNCTION 28
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// tfunc02 is > 16Mb away, expect range extension thunks in precreated thunk
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// section
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// CHECK8: <tfunc28>:
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// CHECK8-NEXT: 1e00000: 70 47 bx lr
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// CHECK8-NEXT: 1e00002: 00 f6 0d 90 b.w 0x1000020 <__Thumbv7ABSLongThunk_tfunc02>
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b.w tfunc02
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FUNCTION 29
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FUNCTION 30
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FUNCTION 31
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FUNCTION 32
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// tfunc15 and tfunc16 are > 16 Mb away expect Thunks in the nearest
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// precreated thunk section.
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bl tfunc15
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bl tfunc16
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// CHECK9: <tfunc32>:
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// CHECK9: 2200000: 70 47 bx lr
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// CHECK9-NEXT: 2200002: ff f5 ff d7 bl 0x1400004 <__Thumbv7ABSLongThunk_tfunc15>
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// CHECK9-NEXT: 2200006: ff f5 ff d7 bl 0x1400008 <__Thumbv7ABSLongThunk_tfunc16>
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FUNCTION 33
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bl tfunc15
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bl tfunc16
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// CHECK10: <tfunc33>:
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// CHECK10: 2300000: 70 47 bx lr
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// CHECK10-NEXT: 2300002: ff f4 ff d7 bl 0x1400004 <__Thumbv7ABSLongThunk_tfunc15>
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// CHECK10-NEXT: 2300006: ff f4 ff d7 bl 0x1400008 <__Thumbv7ABSLongThunk_tfunc16>
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