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TheRock/compiler/amd-llvm/llvm/test/MC/ARM/Windows/branch-reloc-offset.s
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

96 lines
2.7 KiB
ArmAsm

// RUN: llvm-mc -triple thumbv7-windows-gnu -filetype obj %s -o - | llvm-objdump -D -r - | FileCheck %s
// RUN: not llvm-mc -triple thumbv7-windows-gnu -filetype obj --defsym ERR=1 %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=ERR
.text
main:
nop
b .Ltarget
b .Lother_target
// A private label target in the same section
.def .Ltarget
.scl 3
.type 32
.endef
.p2align 2
.Ltarget:
bx lr
// A private label target in another section
.section "other", "xr"
nop
nop
nop
nop
nop
nop
nop
nop
.def .Lother_target
.scl 3
.type 32
.endef
.p2align 2
.Lother_target:
bx lr
// Check that both branches have a relocation with a zero offset.
//
// CHECK: 00000000 <main>:
// CHECK: 0: bf00 nop
// CHECK: 2: f000 b800 b.w 0x6 <main+0x6> @ imm = #0x0
// CHECK: 00000002: IMAGE_REL_ARM_BRANCH24T .Ltarget
// CHECK: 6: f000 b800 b.w 0xa <main+0xa> @ imm = #0x0
// CHECK: 00000006: IMAGE_REL_ARM_BRANCH24T .Lother_target
// CHECK: a: bf00 nop
// CHECK: 0000000c <.Ltarget>:
// CHECK: c: 4770 bx lr
// CHECK: 00000000 <other>:
// CHECK: 0: bf00 nop
// CHECK: 2: bf00 nop
// CHECK: 4: bf00 nop
// CHECK: 6: bf00 nop
// CHECK: 8: bf00 nop
// CHECK: a: bf00 nop
// CHECK: c: bf00 nop
// CHECK: e: bf00 nop
// CHECK: 00000010 <.Lother_target>:
// CHECK: 10: 4770 bx lr
.ifdef ERR
.section "other2", "xr"
err:
nop
// Test errors, if referencing a symbol with an offset
b .Lerr_target+4
// ERR: [[#@LINE-1]]:19: error: cannot perform a PC-relative fixup with a non-zero symbol offset
bl .Lerr_target+4
// ERR: [[#@LINE-1]]:20: error: cannot perform a PC-relative fixup with a non-zero symbol offset
blx .Lerr_target+4
// ERR: [[#@LINE-1]]:21: error: cannot perform a PC-relative fixup with a non-zero symbol offset
// Test errors, if referencing a private label which lacks .def/.scl/.type/.endef, in another
// section, without an offset. Such symbols are omitted from the output symbol table, so the
// relocation can't reference them. Such relocations usually are made towards the base of the
// section plus an offset, but such an offset is not supported with this relocation.
b .Lerr_target2
// ERR: [[#@LINE-1]]:7: error: cannot perform a PC-relative fixup with a non-zero symbol offset
.def .Lerr_target
.scl 3
.type 32
.endef
.Lerr_target:
nop
nop
bx lr
.section "other3", "xr"
nop
.Lerr_target2:
bx lr
.endif