Change Details

To address the reported issue https://github.com/llvm/llvm-project/issues/59315, this patch updates `PPCTTIImpl::supportsTailCallFor()` in following aspects: (1) Add check logic for non-64BitELFABI sub-targets. This part of logic is missing from previous fix D131953, and caused the issue. (2) Disable tailcall generation when longcall feature is turned on. (3) Reuse `mayBeEmittedAsTailCall()` from TLI to check for 64BitELFABI sub-targets. (4) Add asserts requirement for the test case.

To address the reported issue https://github.com/llvm/llvm-project/issues/59315, this patch updates `PPCTTIImpl::supportsTailCallFor()` in following aspects: (1) Add check logic for non-64BitELFABI sub-targets. This part of logic is missing from previous fix D131953, and caused the issue. (2) Disable tailcall generation when longcall feature is turned on. (3) Reuse `mayBeEmittedAsTailCall()` from TLI to check for 64BitELFABI sub-targets. (4) Add asserts requirement for the test case. Fixes #59315

To address the reported issue https://github.com/llvm/llvm-project/issues/59315, this patch updates `PPCTTIImpl::supportsTailCallFor()` in following aspects: (1) Add check logic for non-64BitELFABI sub-targets. This part of logic is missing from previous fix D131953, and caused the issue. (2) Disable tailcall generation when longcall feature is turned on. (3) Reuse `mayBeEmittedAsTailCall()` from TLI to check for 64BitELFABI sub-targets. (4) Add asserts requirement for the test case. Fixes #59315