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author | Xavier Leroy <xavier.leroy@inria.fr> | 2017-04-28 15:56:59 +0200 |
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committer | Xavier Leroy <xavier.leroy@inria.fr> | 2017-04-28 16:05:51 +0200 |
commit | f642817f0dc761e51c3bd362f75b0068a8d4b0c8 (patch) | |
tree | b5830bb772611d2271c4b7d26f162d5c200dd788 /runtime/c/i64_dtou.c | |
parent | 2fbdb0c45f0913b9fd8e95606c525fc5bfb3bc6d (diff) | |
download | compcert-f642817f0dc761e51c3bd362f75b0068a8d4b0c8.tar.gz compcert-f642817f0dc761e51c3bd362f75b0068a8d4b0c8.zip |
RISC-V port and assorted changes
This commits adds code generation for the RISC-V architecture, both in 32- and 64-bit modes.
The generated code was lightly tested using the simulator and cross-binutils from https://riscv.org/software-tools/
This port required the following additional changes:
- Integers: More properties about shrx
- SelectOp: now provides smart constructors for mulhs and mulhu
- SelectDiv, 32-bit integer division and modulus: implement constant propagation, use the new smart constructors mulhs and mulhu.
- Runtime library: if no asm implementation is provided, run the reference C implementation through CompCert. Since CompCert rejects the definitions of names of special functions such as __i64_shl, the reference implementation now uses "i64_" names, e.g. "i64_shl", and a renaming "i64_ -> __i64_" is performed over the generated assembly file, before assembling and building the runtime library.
- test/: add SIMU make variable to run tests through a simulator
- test/regression/alignas.c: make sure _Alignas and _Alignof are not #define'd by C headers
commit da14495c01cf4f66a928c2feff5c53f09bde837f
Author: Xavier Leroy <xavier.leroy@inria.fr>
Date: Thu Apr 13 17:36:10 2017 +0200
RISC-V port, continued
Now working on Asmgen.
commit 36f36eb3a5abfbb8805960443d087b6a83e86005
Author: Xavier Leroy <xavier.leroy@inria.fr>
Date: Wed Apr 12 17:26:39 2017 +0200
RISC-V port, first steps
This port is based on Prashanth Mundkur's experimental RV32 port and brings it up to date with CompCert, and adds 64-bit support (RV64). Work in progress.
Diffstat (limited to 'runtime/c/i64_dtou.c')
-rw-r--r-- | runtime/c/i64_dtou.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/runtime/c/i64_dtou.c b/runtime/c/i64_dtou.c index c5f9df4d..5f4901b2 100644 --- a/runtime/c/i64_dtou.c +++ b/runtime/c/i64_dtou.c @@ -38,7 +38,7 @@ /* Conversion float64 -> unsigned int64 */ -unsigned long long __i64_dtou(double d) +unsigned long long i64_dtou(double d) { /* Extract bits of d's representation */ union { double d; unsigned long long i; } buf; @@ -62,8 +62,8 @@ unsigned long long __i64_dtou(double d) (buf.i & ~0xFFF0000000000000LL) | 0x0010000000000000LL; /* Shift it appropriately */ if (e >= 0) - return __i64_shl(m, e); + return i64_shl(m, e); else - return __i64_shr(m, -e); + return i64_shr(m, -e); } |