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Fix problems with GCC optimization and cMake #73

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merged 4 commits into from
Jan 9, 2023
Merged

Fix problems with GCC optimization and cMake #73

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cab9819
Fix problems when using cMake
Xeratec Nov 23, 2022
024e120
Fixed compiler optimization problems
Xeratec Dec 10, 2022
57b25d8
Updated infos for PR
Xeratec Dec 10, 2022
a9ada7e
Fix GCC-specific specific flag
Xeratec Dec 30, 2022
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3 changes: 3 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -16,6 +16,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
### Fixed
- Measure the `wfi` stalls and stalls caused by `opc` properly
- Fix the allocator initialization
- After building GCC, copy `riscv.ld` required for cMake to install folder
- Disable GCC tree-loop-distribute-patterns optimizations causing stack overflows
- Disable problematic GCC `memset` and `memcpy` built-in functions

### Changed
- Increase the default AXI width to 512 for MemPool and TeraPool
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1 change: 1 addition & 0 deletions CONTRIBUTORS.md
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Expand Up @@ -11,5 +11,6 @@ Thanks to all.
* Luca Rufer
* Marc Gantenbein
* Marco Bertuletti
* Philip Wiese
* Sergio Mazzola
* Yichao Zhang
3 changes: 2 additions & 1 deletion Makefile
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Expand Up @@ -78,7 +78,8 @@ tc-riscv-gcc:
mkdir -p $(GCC_INSTALL_DIR)
cd $(CURDIR)/toolchain/riscv-gnu-toolchain && rm -rf build && mkdir -p build && cd build && \
../configure --prefix=$(GCC_INSTALL_DIR) --with-arch=rv32im --with-cmodel=medlow --enable-multilib && \
$(MAKE) MAKEINFO=true -j4
$(MAKE) MAKEINFO=true -j4 && \
cp ../riscv.ld $(GCC_INSTALL_DIR)/riscv32-unknown-elf/lib

tc-llvm:
mkdir -p $(LLVM_INSTALL_DIR)
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4 changes: 2 additions & 2 deletions software/runtime/runtime.mk
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Expand Up @@ -85,8 +85,8 @@ RISCV_LLVM_TARGET ?= --target=$(RISCV_TARGET) --sysroot=$(GCC_INSTALL_DIR)/$(RI

RISCV_WARNINGS += -Wunused-variable -Wconversion -Wall -Wextra # -Werror
RISCV_FLAGS_COMMON_TESTS ?= -march=$(RISCV_ARCH) -mabi=$(RISCV_ABI) -I$(ROOT_DIR) -I$(HALIDE_INCLUDE) -static
RISCV_FLAGS_COMMON ?= $(RISCV_FLAGS_COMMON_TESTS) -g -std=gnu99 -O3 -ffast-math -fno-common -fno-builtin-printf $(DEFINES) $(RISCV_WARNINGS)
RISCV_FLAGS_GCC ?= -mcmodel=medany -Wa,-march=$(RISCV_ARCH_AS) -mtune=mempool # -falign-loops=32 -falign-jumps=32
RISCV_FLAGS_COMMON ?= $(RISCV_FLAGS_COMMON_TESTS) -g -std=gnu99 -O3 -fno-builtin-memcpy -fno-builtin-memset -ffast-math -fno-common -fno-builtin-printf $(DEFINES) $(RISCV_WARNINGS)
RISCV_FLAGS_GCC ?= -mcmodel=medany -Wa,-march=$(RISCV_ARCH_AS) -mtune=mempool -fno-tree-loop-distribute-patterns # -falign-loops=32 -falign-jumps=32
RISCV_FLAGS_LLVM ?= -mcmodel=small -mcpu=mempool-rv32 -mllvm -misched-topdown

ifeq ($(COMPILER),gcc)
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