#!/bin/bash
# Find and read the actual file
find . -name "fp8_blockscale_gemm_sm90_binding.cu" -type f

#!/bin/bash
# Check the file structure
fd "fp8_blockscale_gemm_sm90_binding.cu" --type f

#!/bin/bash
# Search for the file in common locations
find . -path "*/csrc/*" -name "*fp8*blockscale*" -type f

#!/bin/bash
# Broader search
git ls-files | grep -i "fp8.*blockscale\|blockscale.*binding"

#!/bin/bash
# List all files matching the pattern
git ls-files "**/*fp8_blockscale*" | head -20

#!/bin/bash
# Find any references to this filename
rg "fp8_blockscale_gemm_sm90_binding" --type cu

#!/bin/bash
# Find all .cu files in csrc
find ./csrc -name "*.cu" -type f 2>/dev/null | head -20

#!/bin/bash
# Search for blockscale in cu files
rg "blockscale" --type cu | head -20

#!/bin/bash
# Check if csrc directory exists
ls -la csrc/ 2>/dev/null | head -20 || echo "csrc not found in root"
# Try alternative structure
find . -type d -name csrc 2>/dev/null

#!/bin/bash
# Search for similar error message patterns and K%16 checks
rg "N must be a multiple of 16" --type cu

#!/bin/bash
# Search for shape_k % 16 checks
rg "shape_k.*%.*16" --type cu -B2 -A2

#!/bin/bash
# Search for output dtype validation patterns
rg "output.*dtype\|dtype.*output" --type cu | head -20

#!/bin/bash
# Search for bfloat16 or BF16 checks
rg "bfloat16|bf16" --type cu -i | head -20

#!/bin/bash
# Look for TVM FFI utilities for dtype checking
find . -name "tvm_ffi_utils.h" -o -name "*tvm*utils*.h" | head -10

#!/bin/bash
# Find other GEMM binding files
find . -type f -name "*gemm*binding*" | head -20

#!/bin/bash
# Search in the referenced header file from learnings
cat include/flashinfer/gemm/bf16_gemm_cutlass_template.h 2>/dev/null | head -50

#!/bin/bash
# Search all files that validate output dtype
rg "encode_dlpack_dtype|dtype.*code\|TVM_FFI_ICHECK.*dtype" --type cu -A2 | head -40

#!/bin/bash
# Look for how dtype is validated in binding files
rg "dtype\(\)" --type cu -B2 -A2 | head -40

#!/bin/bash
# Find files using TVM_FFI_ICHECK
rg "TVM_FFI_ICHECK" --type cu | wc -l

#!/bin/bash
# Get actual usage of TVM_FFI_ICHECK with dtype
rg "TVM_FFI_ICHECK.*dtype" --type cu -B1 -A1 | head -50

#!/bin/bash
# Look for blockscale references in Python files
rg "blockscale" --type py | head -20

#!/bin/bash
# Search for any fp8_blockscale references across all file types
rg "fp8_blockscale" -i | head -30

#!/bin/bash
# Show top-level directory structure
ls -la | head -20

#!/bin/bash
# Find all .cu files
find . -name "*.cu" -type f 2>/dev/null | head -30

#!/bin/bash
# Check git ls-files for cu files
git ls-files "*.cu" | grep -E "fp8|blockscale" | head -20

#!/bin/bash
# All cu files in the repo
git ls-files "*.cu" | head -30

#!/bin/bash
# Look for any mentions of shape_k or shape_n dimension checks
rg "shape_k.*shape_n|K.*multiple.*16|N.*multiple.*16" --type cu -B1 -A1 | head -50

#!/bin/bash
# Search for files with "binding" in the name
find . -name "*binding*" -type f 2>/dev/null

#!/bin/bash
# Get complete cu file list
git ls-files | grep "\.cu$"

#!/bin/bash
# Search for files containing the actual code from the review
rg "N must be a multiple of 16"

#!/bin/bash
# Search for shape_k % 16 with context
rg "shape_k.*%.*16" -A1 -B1

#!/bin/bash
# Search for runner templates and output types
rg "runner.*gemm|W8A8.*output" --type cu | head -20

#!/bin/bash
# Look for BF16 output validation
rg "__nv_bfloat16|output.*bf16" -i --type cu | head -20

#!/bin/bash
# Verify the logic: check which dimension is checked with %16
cat > /tmp/verify_logic.py << 'EOF'
# The review states:
# Line 114 checks: shape_k % 16 == 0
# But message says: "N must be a multiple of 16, (K=" << shape_k << ")"
#
# This is indeed wrong - should be "K must be..."
# The check is on shape_k (the K dimension in matrix multiply)
# But the error message says "N" 

print("Issue 1: Error message mismatch")
print("Code checks: shape_k % 16 == 0")
print("Message says: 'N must be a multiple of 16'")
print("Should say: 'K must be a multiple of 16'")
print("Status: CONFIRMED - this is a clear bug")
print()
print("Issue 2: Output BF16 validation")
print("Review claims runners are BF16-output only")
print("Code shows: auto* bf16_output = reinterpret_cast<__nv_bfloat16*>(output_ptr)")
print("This suggests BF16 output is assumed")
print("But no validation is done on output.dtype()")
print("If caller passes FP16 or other type, memory corruption could occur")
print("Status: NEEDS VERIFICATION - is this actually a safety issue?")
EOF
python /tmp/verify_logic.py

#!/bin/bash
# Search for how other bindings handle output dtype validation
rg "output.*dtype\(\)" --type cu -B3 -A3 | head -40

#!/bin/bash
# Look for available dtype checking functions/macros
rg "encode_dlpack_dtype|is_fp8_e4m3fn|dtype.*code" -B1 -A1 | head -40

#!/bin/bash
# Check what dtype checking utilities exist
rg "bool.*dtype|is_.*dtype" --type cu | head -20

#!/bin/bash
# Search for dtype validation patterns in bindings
rg "TVM_FFI_ICHECK.*dtype\|is_fp8_e4m3fn" --type cu -B2 -A2 | head -60

#!/bin/bash
# Look at is_fp8_e4m3fn usage
rg "is_fp8_e4m3fn" -B1 -A1

#!/bin/bash
# Search for bfloat16_code or similar dtype codes
rg "bfloat16_code|e4m3fn_code|dtype.*code" -B1 -A1 | head -40

/#search for how dtype is compared
rg "\.dtype()\|input\.dtype\(\)|weight\.dtype\(\)" | head -20

#!/bin/bash
# Search for bfloat16 type checking
rg "is_bfloat16|bfloat16|bf16" -i --type cu | grep -E "is_|check|valid" | head -20

#!/bin/bash
# Look for how types are compared in existing code
rg "dtype().*==" --type cu -B1 -A1 | head -30

#!/bin/bash
# Check all cu files for dtype comparison patterns
rg "encode_dlpack_dtype|\.code\(\)" --type cu | head -20

#!/bin/bash
# Look for dtype constants or enums
rg "kDLFloat16|kDLBfloat" | head -20

#!/bin/bash
# Get a comprehensive view of all dtype-related validations
rg "shape_[a-z] % 16\|N must be\|K must be" -B2 -A2

#!/bin/bash
# Verify the logic of the error message issue
python3 << 'EOF'
# Issue 1: Error Message on Line 114
# The code checks: TVM_FFI_ICHECK(shape_k % 16 == 0) << "N must be..."
# But it's checking shape_k (K dimension)
# Message says "N must be a multiple of 16" 
# This is clearly wrong - message should say "K must be..."

# This is a straightforward factual error in the message

# Issue 2: Output dtype validation
# The code assumes output is BF16 (reinterpret_cast<__nv_bfloat16*>)
# But there's no validation that output.dtype() is actually BF16
# If someone passes FP16 or FP32, undefined behavior/memory corruption

# Both issues appear valid in principle
# Issue 1 is definitely a bug (wrong error message)
# Issue 2 is a type safety concern (missing validation)

print("Issue 1 (Error message): VALID BUG")
print("Issue 2 (Type validation): VALID CONCERN if runners are truly BF16-only")
EOF

#!/bin/bash
# Check for dtype validation in similar files
rg "is_fp8_e4m3fn" --type cu -B5 | head -40

#!/bin/bash
# Look for pattern: how to check if output is BF16
rg "bfloat16|bf16" --type cu -i -B2 -A2 | grep -E "TVM_FFI_ICHECK|if.*dtype|is_" | head -20

#!/bin/bash
# Search for any dtype comparison that might give us a pattern
rg "dtype\(\).*==" --type cu | head -20

/#Check for type_code or similar
rg "type_code|code\(\)" --type cu | head -20

#!/bin/bash
# Find function definitions for dtype checking
rg "^bool is_|^bool.*dtype" --type cu | head -20

#!/bin/bash
# Look for is_fp8_e4m3fn definition or usage context
rg "is_fp8_e4m3fn" -B3 -A3 | head -50

#!/bin/bash
# Final verification: Check if there's any existing dtype validation for output
rg "output\)\|TVM_FFI_ICHECK.*output" --type cu | grep dtype | head -10

#!/bin/bash
# Verify the K% 16 error message one more time with exact pattern
rg 'shape_k.*%.*16.*0.*<<.*"N must' --type cu

head -n 200 csrc/fp8_blockscale_gemm_sm90_binding.cu

sed -n '1,50p' csrc/fp8_blockscale_gemm_sm90_binding.cu

sed -n '110,125p' csrc/fp8_blockscale_gemm_sm90_binding.cu

cat csrc/tvm_ffi_utils.h | head -100

sed -n '98,182p' csrc/fp8_blockscale_gemm_sm90_binding.cu

grep -n "encode_dlpack_dtype\|kDLBfloat\|bfloat16_code" csrc/fp8_blockscale_gemm_sm90_binding.cu

grep -n "encode_dlpack_dtype\|DLDataType\|kDL" csrc/tvm_ffi_utils.h | head -30