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6648816752
In MCObjectStreamer, when there is no current fragment, initially symbols are created in a "pending" state and assigned to a dummy empty fragment. Previously, they were not being assigned an offset, and thus evaluateAbsolute would fail if trying to evaluate an expression 'a - b', where both 'a' and 'b' were in this pending state. Also slightly refactored the EmitLabel overload which takes an MCFragment for clarity. Fixes: https://llvm.org/PR41825 Differential Revision: https://reviews.llvm.org/D70062
69 lines
1.3 KiB
ArmAsm
69 lines
1.3 KiB
ArmAsm
# RUN: not llvm-mc -triple x86_64-unknown-unknown %s 2>&1 | FileCheck %s --check-prefix=ASM-ERR
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# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %s | llvm-objdump -j .data -s - | FileCheck %s --check-prefix=OBJDATA
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# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %s | llvm-objdump -j .text -s - | FileCheck %s --check-prefix=OBJTEXT
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.data
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# OBJDATA: Contents of section .data
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# OBJDATA-NEXT: 0000 aa0506ff
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foo2:
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# ASM-ERR: [[@LINE+1]]:5: error: expected absolute expression
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.if . - foo2 == 0
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.byte 0xaa
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.else
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.byte 0x00
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.endif
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foo3:
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.byte 5
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# ASM-ERR: [[@LINE+1]]:5: error: expected absolute expression
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.if . - foo3 == 1
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.byte 6
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.else
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.byte 7
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.endif
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.byte 0xff
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# nop is a fixed size instruction so this should pass.
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# OBJTEXT: Contents of section .text
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# OBJTEXT-NEXT: 0000 909090ff 34250000 00009090 90785634
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# OBJTEXT-NEXT: 0010 12785634 1290
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.text
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text1:
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# ASM-ERR: [[@LINE+1]]:5: error: expected absolute expression
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.if . - text1 == 0
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nop
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.endif
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text2:
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nop
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# ASM-ERR: [[@LINE+1]]:5: error: expected absolute expression
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.if . - text2 == 1
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nop
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.else
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ret
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.endif
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push gs
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nop
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nop
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nop
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# No additional errors.
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#
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# ASM-ERR-NOT: {{[0-9]+}}:{{[0-9]+}}: error:
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text3:
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.long 0x12345678
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text4:
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.fill (text4-text3)/4, 4, 0x12345678
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nop
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