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d984735422
This change adds a new fixup fixup_t2_so_imm for the t2_so_imm_asmoperand
"T2SOImm". The fixup permits code such as:
.L1:
sub r3, r3, #.L2 - .L1
.L2:
to assemble in Thumb2 as well as in ARM state.
The operand predicate isT2SOImm() explicitly doesn't match expressions
containing :upper16: and :lower16: as expressions with these operators
must match the movt and movw instructions.
The test mov r0, foo2 in thumb2-diagnostics is moved to a new file as the
fixup delays the error message till after the assembler has quit due to
the other errors.
As the mov instruction shares the t2_so_imm_asmoperand mov instructions
with a non constant expression now match t2MOVi rather than t2MOVi16 so the
error message is slightly different.
Fixes PR28647
Differential Revision: https://reviews.llvm.org/D33492
llvm-svn: 304702
56 lines
1.2 KiB
ArmAsm
56 lines
1.2 KiB
ArmAsm
// RUN: llvm-mc -triple=thumbeb-eabi -mattr v7,vfp2 -filetype=obj < %s | llvm-objdump -s - | FileCheck %s
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.syntax unified
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.text
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.align 2
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@ARM::fixup_t2_movw_lo16
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.section s_movw,"ax",%progbits
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// CHECK-LABEL: Contents of section s_movw
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// CHECK: 0000 f2400008
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movw r0, :lower16:(some_label+8)
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@ARM::fixup_t2_movt_hi16
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.section s_movt,"ax",%progbits
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// CHECK-LABEL: Contents of section s_movt
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// CHECK: 0000 f6cf70fc
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movt r0, :upper16:GOT-(movt_label)
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movt_label:
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@ARM::fixup_t2_uncondbranch
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.section s_uncondbranch,"ax",%progbits
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// CHECK-LABEL: Contents of section s_uncondbranch
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// CHECK: 0000 f000b801 bf00
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b.w uncond_label
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nop
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uncond_label:
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@ARM::fixup_t2_condbranch
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.section s_condbranch,"ax",%progbits
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// CHECK-LABEL: Contents of section s_condbranch
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// CHECK: 0000 f0008001 bf00
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beq.w cond_label
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nop
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cond_label:
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@ARM::fixup_t2_ldst_precel_12
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.section s_ldst_precel_12,"ax",%progbits
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ldr.w r0, ldst_precel_12_label
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nop
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nop
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ldst_precel_12_label:
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@ARM::fixup_t2_adr_pcrel_12
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.section s_adr_pcrel_12,"ax",%progbits
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adr.w r0, adr_pcrel_12_label
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nop
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nop
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adr_pcrel_12_label:
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@ARM::fixup_t2_so_imm
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.section s_t2_so_imm,"ax",%progbits
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// CHECK-LABEL: Contents of section s_t2_so_imm
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// CHECK: 0000 f1033337
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add r3, r3,val
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.equ val,0x37373737
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