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aa4f835b48
Allow instructions such as 'cmp w0, #(end - start)' by folding the expression into a constant. For ELF, we fold only if the symbols are in the same section. For MachO, we fold if the expression contains only symbols that are not linker visible. Fixes https://llvm.org/bugs/show_bug.cgi?id=18920 Differential Revision: https://reviews.llvm.org/D23834 llvm-svn: 283862
69 lines
2.1 KiB
ArmAsm
69 lines
2.1 KiB
ArmAsm
// RUN: not llvm-mc -triple aarch64-darwin -filetype=obj %s -o /dev/null 2>&1 | FileCheck %s
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// RUN: not llvm-mc -triple aarch64-ios -filetype=obj %s -o /dev/null 2>&1 | FileCheck %s
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Lstart:
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.space 8
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Lend:
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add w0, w1, #(Lend - external)
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cmp w0, #(Lend - external)
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// CHECK: error: unknown AArch64 fixup kind!
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// CHECK-NEXT: add w0, w1, #(Lend - external)
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// CHECK-NEXT: ^
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// CHECK: error: unknown AArch64 fixup kind!
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// CHECK-NEXT: cmp w0, #(Lend - external)
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// CHECK-NEXT: ^
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add w0, w1, #(Lend - var@TLVPPAGEOFF)
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cmp w0, #(Lend - var@TLVPPAGEOFF)
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// CHECK: error: unknown AArch64 fixup kind!
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// CHECK-NEXT: add w0, w1, #(Lend - var@TLVPPAGEOFF)
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// CHECK-NEXT: ^
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// CHECK: error: unknown AArch64 fixup kind!
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// CHECK-NEXT: cmp w0, #(Lend - var@TLVPPAGEOFF)
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// CHECK-NEXT: ^
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add w0, w1, #(Lstart - Lend)
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cmp w0, #(Lstart - Lend)
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// CHECK: error: fixup value out of range
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// CHECK-NEXT: add w0, w1, #(Lstart - Lend)
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// CHECK-NEXT: ^
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// CHECK: error: fixup value out of range
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// CHECK-NEXT: cmp w0, #(Lstart - Lend)
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// CHECK-NEXT: ^
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.space 5000
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Lfar:
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add w0, w1, #(Lfar - Lend)
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cmp w0, #(Lfar - Lend)
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// CHECK: error: fixup value out of range
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// CHECK-NEXT: add w0, w1, #(Lfar - Lend)
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// CHECK-NEXT: ^
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// CHECK: error: fixup value out of range
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// CHECK-NEXT: cmp w0, #(Lfar - Lend)
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// CHECK-NEXT: ^
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Lprivate1:
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.space 8
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notprivate:
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.space 8
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Lprivate2:
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add w0, w1, #(Lprivate2 - Lprivate1)
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cmp w0, #(Lprivate2 - Lprivate1)
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// CHECK: error: unknown AArch64 fixup kind!
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// CHECK-NEXT: add w0, w1, #(Lprivate2 - Lprivate1)
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// CHECK-NEXT: ^
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// CHECK: error: unknown AArch64 fixup kind!
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// CHECK-NEXT: cmp w0, #(Lprivate2 - Lprivate1)
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// CHECK-NEXT: ^
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.section __TEXT, sec_y, regular, pure_instructions
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Lend_across_sec:
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add w0, w1, #(Lend_across_sec - Lprivate2)
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cmp w0, #(Lend_across_sec - Lprivate2)
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// CHECK: error: unknown AArch64 fixup kind!
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// CHECK-NEXT: add w0, w1, #(Lend_across_sec - Lprivate2)
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// CHECK-NEXT: ^
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// CHECK: error: unknown AArch64 fixup kind!
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// CHECK-NEXT: cmp w0, #(Lend_across_sec - Lprivate2)
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// CHECK-NEXT: ^
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