Merged to the 9.0 branch in r366554.
On Thu, Jul 18, 2019 at 8:29 PM Alex Bradbury via cfe-commits <cfe-commits@lists.llvm.org> wrote: > > Author: asb > Date: Thu Jul 18 11:29:59 2019 > New Revision: 366480 > > URL: http://llvm.org/viewvc/llvm-project?rev=366480&view=rev > Log: > [RISCV] Hard float ABI support > > The RISC-V hard float calling convention requires the frontend to: > > * Detect cases where, once "flattened", a struct can be passed using > int+fp or fp+fp registers under the hard float ABI and coerce to the > appropriate type(s) > * Track usage of GPRs and FPRs in order to gate the above, and to > determine when signext/zeroext attributes must be added to integer > scalars > > This patch attempts to do this in compliance with the documented ABI, > and uses ABIArgInfo::CoerceAndExpand in order to do this. @rjmccall, as > author of that code I've tagged you as reviewer for initial feedback on > my usage. > > Note that a previous version of the ABI indicated that when passing an > int+fp struct using a GPR+FPR, the int would need to be sign or > zero-extended appropriately. GCC never did this and the ABI was changed, > which makes life easier as ABIArgInfo::CoerceAndExpand can't currently > handle sign/zero-extension attributes. > > Re-landed after backing out 366450 due to missed hunks. > > Differential Revision: https://reviews.llvm.org/D60456 > > Added: > cfe/trunk/test/CodeGen/riscv32-ilp32d-abi.c > cfe/trunk/test/CodeGen/riscv32-ilp32f-abi.c > cfe/trunk/test/CodeGen/riscv32-ilp32f-ilp32d-abi.c > cfe/trunk/test/CodeGen/riscv64-lp64d-abi.c > cfe/trunk/test/CodeGen/riscv64-lp64f-lp64d-abi.c > Modified: > cfe/trunk/lib/Basic/Targets/RISCV.cpp > cfe/trunk/lib/Basic/Targets/RISCV.h > cfe/trunk/lib/CodeGen/TargetInfo.cpp > cfe/trunk/test/CodeGen/riscv32-ilp32-ilp32f-abi.c > cfe/trunk/test/CodeGen/riscv32-ilp32-ilp32f-ilp32d-abi.c > cfe/trunk/test/CodeGen/riscv64-lp64-lp64f-abi.c > cfe/trunk/test/CodeGen/riscv64-lp64-lp64f-lp64d-abi.c > cfe/trunk/test/Driver/riscv-abi.c > cfe/trunk/test/Preprocessor/riscv-target-features.c _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
