forked from M-Labs/nac3
62 lines
2.5 KiB
Diff
62 lines
2.5 KiB
Diff
commit 6e2dea56207b4e52ade9d1eee6a4f198336dd0a6
|
|
Author: Sebastien Bourdeauducq <sb@m-labs.hk>
|
|
Date: Thu Nov 11 23:32:13 2021 +0800
|
|
|
|
llvm: switch RISC-V ABI when FPU is present
|
|
|
|
diff --git a/pkgs/development/compilers/llvm/12/llvm/default.nix b/pkgs/development/compilers/llvm/12/llvm/default.nix
|
|
index 30a1a7a16df..41b7211b2a5 100644
|
|
--- a/pkgs/development/compilers/llvm/12/llvm/default.nix
|
|
+++ b/pkgs/development/compilers/llvm/12/llvm/default.nix
|
|
@@ -66,6 +66,7 @@ in stdenv.mkDerivation (rec {
|
|
sha256 = "sha256:12s8vr6ibri8b48h2z38f3afhwam10arfiqfy4yg37bmc054p5hi";
|
|
stripLen = 1;
|
|
})
|
|
+ ./llvm-future-riscv-abi.diff
|
|
] ++ lib.optional enablePolly ./gnu-install-dirs-polly.patch;
|
|
|
|
postPatch = optionalString stdenv.isDarwin ''
|
|
@@ -183,7 +184,7 @@ in stdenv.mkDerivation (rec {
|
|
cp NATIVE/bin/llvm-config $dev/bin/llvm-config-native
|
|
'';
|
|
|
|
- doCheck = stdenv.isLinux && (!stdenv.isx86_32) && (!stdenv.hostPlatform.isMusl);
|
|
+ doCheck = false; # the ABI change breaks RISC-V FP tests
|
|
|
|
checkTarget = "check-all";
|
|
|
|
diff --git a/pkgs/development/compilers/llvm/12/llvm/llvm-future-riscv-abi.diff b/pkgs/development/compilers/llvm/12/llvm/llvm-future-riscv-abi.diff
|
|
new file mode 100644
|
|
index 00000000000..2427ed0e02c
|
|
--- /dev/null
|
|
+++ b/pkgs/development/compilers/llvm/12/llvm/llvm-future-riscv-abi.diff
|
|
@@ -0,0 +1,28 @@
|
|
+diff --git a/lib/Target/RISCV/MCTargetDesc/RISCVBaseInfo.cpp b/lib/Target/RISCV/MCTargetDesc/RISCVBaseInfo.cpp
|
|
+index 0aba18b20..9bb75e7f4 100644
|
|
+--- a/lib/Target/RISCV/MCTargetDesc/RISCVBaseInfo.cpp
|
|
++++ b/lib/Target/RISCV/MCTargetDesc/RISCVBaseInfo.cpp
|
|
+@@ -33,6 +33,8 @@ ABI computeTargetABI(const Triple &TT, FeatureBitset FeatureBits,
|
|
+ auto TargetABI = getTargetABI(ABIName);
|
|
+ bool IsRV64 = TT.isArch64Bit();
|
|
+ bool IsRV32E = FeatureBits[RISCV::FeatureRV32E];
|
|
++ bool IsRV32D = FeatureBits[RISCV::FeatureStdExtD];
|
|
++ bool IsRV32F = FeatureBits[RISCV::FeatureStdExtF];
|
|
+
|
|
+ if (!ABIName.empty() && TargetABI == ABI_Unknown) {
|
|
+ errs()
|
|
+@@ -56,10 +58,10 @@ ABI computeTargetABI(const Triple &TT, FeatureBitset FeatureBits,
|
|
+ if (TargetABI != ABI_Unknown)
|
|
+ return TargetABI;
|
|
+
|
|
+- // For now, default to the ilp32/ilp32e/lp64 ABI if no explicit ABI is given
|
|
+- // or an invalid/unrecognised string is given. In the future, it might be
|
|
+- // worth changing this to default to ilp32f/lp64f and ilp32d/lp64d when
|
|
+- // hardware support for floating point is present.
|
|
++ if (IsRV32D)
|
|
++ return ABI_ILP32D;
|
|
++ if (IsRV32F)
|
|
++ return ABI_ILP32F;
|
|
+ if (IsRV32E)
|
|
+ return ABI_ILP32E;
|
|
+ if (IsRV64)
|