[llvm][misexpect][NFC] Fix typos in comments (llvm#82124)

Author: ilovepi

llvm/include/llvm/Transforms/Utils/MisExpect.h

@@ -27,7 +27,7 @@ namespace misexpect {
 
 /// checkBackendInstrumentation - compares PGO counters to the thresholds used
 /// for llvm.expect and warns if the PGO counters are outside of the expected
-/// range. It extracts the expected weights from the MD_prof weights attatched
+/// range. It extracts the expected weights from the MD_prof weights attached
 /// to the instruction, which are assumed to come from lowered llvm.expect
 /// intrinsics. The RealWeights parameter and the extracted expected weights are
 /// then passed to verifyMisexpect() for verification
@@ -39,15 +39,15 @@ void checkBackendInstrumentation(Instruction &I,
 
 /// checkFrontendInstrumentation - compares PGO counters to the thresholds used
 /// for llvm.expect and warns if the PGO counters are outside of the expected
-/// range. It extracts the expected weights from the MD_prof weights attatched
+/// range. It extracts the expected weights from the MD_prof weights attached
 /// to the instruction, which are assumed to come from profiling data
 /// attached by the frontend prior to llvm.expect intrinsic lowering. The
 /// ExpectedWeights parameter and the extracted real weights are then passed to
 /// verifyMisexpect() for verification
 ///
 /// \param I The Instruction being checked
 /// \param ExpectedWeights A vector of the expected weights for each target
-/// block, this determines the threshold values used when emiting diagnostics
+/// block, this determines the threshold values used when emitting diagnostics
 void checkFrontendInstrumentation(Instruction &I,
                                   const ArrayRef<uint32_t> ExpectedWeights);
 
@@ -63,7 +63,7 @@ void verifyMisExpect(Instruction &I, ArrayRef<uint32_t> RealWeights,
 
 /// checkExpectAnnotations - compares PGO counters to the thresholds used
 /// for llvm.expect and warns if the PGO counters are outside of the expected
-/// range. It extracts the expected weights from the MD_prof weights attatched
+/// range. It extracts the expected weights from the MD_prof weights attached
 /// to the instruction, which are assumed to come from lowered llvm.expect
 /// intrinsics. The RealWeights parameter and the extracted expected weights are
 /// then passed to verifyMisexpect() for verification. It is a thin wrapper