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invalid-instructions-spellcheck.s @release_90

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# RUN: not llvm-mc -triple amdgcn < %s 2>&1 | FileCheck %s

# This tests the mnemonic spell checker.

# First check what happens when an instruction is omitted:

v2, v4, v6

# CHECK:      unknown token in expression
# CHECK-NEXT: v2, v4, v6
# CHECK-NEXT:   ^

# CHECK:      error: failed parsing operand
# CHECK-NEXT: v2, v4, v6
# CHECK-NEXT:     ^

# We don't want to see a suggestion here; the edit distance is too large to
# give sensible suggestions:

aaaaaaaaaaaaaaa v1, v2, v3

# CHECK:      error: invalid instruction
# CHECK-NEXT: aaaaaaaaaaaaaaa v1, v2, v3
# CHECK-NEXT: ^

# Check that we get one suggestion: 'dsc_write_src2_b64' is 1 edit away, i.e. an deletion.

dsc_write_src2_b64 v1, v2, v3

# CHECK:      error: invalid instruction, did you mean: ds_write_src2_b64?
# CHECK-NEXT: dsc_write_src2_b64 v1, v2, v3
# CHECK-NEXT: ^

# Check edit distance 1 and 2, just insertions:

s_mov_b v1, v2

# CHECK:      error: invalid instruction, did you mean: s_mov_b32, s_mov_b64?
# CHECK-NEXT: s_mov_b v1, v2
# CHECK-NEXT: ^

# Check an instruction that is 2 edits away, and also has a lot of candidates:

s_load_dwordx v1, v2, v3

# CHECK:      error: invalid instruction, did you mean: s_load_dword, s_load_dwordx16, s_load_dwordx2, s_load_dwordx4, s_load_dwordx8?
# CHECK-NEXT: s_load_dwordx v1, v2, v3
# CHECK-NEXT: ^