51 lines
1.5 KiB
ArmAsm
51 lines
1.5 KiB
ArmAsm
// This test checks error reporting for mismatched prolog/epilog lengths
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// RUN: not llvm-mc -triple thumbv7-pc-win32 -filetype=obj -o /dev/null %s 2>&1 | FileCheck %s
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// CHECK-NOT: func1
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// CHECK: error: Incorrect size for func2 epilogue: 6 bytes of instructions in range, but .seh directives corresponding to 4 bytes
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// CHECK: error: Incorrect size for func3 prologue: 4 bytes of instructions in range, but .seh directives corresponding to 2 bytes
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.text
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.syntax unified
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.seh_proc func1
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func1:
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// Instruction with indeterminate length
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b other
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.seh_endprologue
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nop
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.seh_startepilogue
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// The p2align causes the length of the epilogue to be unknown, so
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// we can't report errors about the mismatch here.
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.p2align 1
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pop {r4-r7-lr}
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.seh_save_regs {r4-r7,lr}
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bx lr
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.seh_nop
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.seh_endepilogue
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.seh_endproc
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.seh_proc func2
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func2:
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.seh_endprologue
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nop
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.seh_startepilogue
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// As we're popping into lr instead of directly into pc, this pop
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// becomes a wide instruction.
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pop {r4-r7,lr}
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// The directive things we're making a narrow instruction, which
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// is wrong.
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.seh_save_regs {r4-r7,lr}
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bx lr
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.seh_nop
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.seh_endepilogue
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.seh_endproc
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.seh_proc func3
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func3:
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nop.w
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.seh_nop
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.seh_endprologue
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nop
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.seh_endproc
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