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| author | James Cowgill <jcowgill@debian.org> | 2018-03-08 11:53:19 +0000 |
|---|---|---|
| committer | James Cowgill <jcowgill@debian.org> | 2018-03-08 13:16:02 +0000 |
| commit | fccaf252df7d5426ae5b0d8b8359357fe526fc58 (patch) | |
| tree | 058f494ac612d81842f70bde873a8cf0627a7f24 | |
| parent | f53f2fa2e894c4709d7b09995331f30c596d0724 (diff) | |
| download | rust-fccaf252df7d5426ae5b0d8b8359357fe526fc58.tar.gz rust-fccaf252df7d5426ae5b0d8b8359357fe526fc58.zip | |
librustc_back: enable fpxx on 32-bit hardfloat mips targets
See this page for details about FPXX: https://dmz-portal.mips.com/wiki/MIPS_O32_ABI_-_FR0_and_FR1_Interlinking Using FPXX is the most compatible floating point mode available and allows the generated code to work in both FR0 and FR1 modes of the processor. Using MSA (MIPS SIMD) requires FR1, so to use any MSA code we need a compatible floating point mode. This commit also sets nooddspreg (disabling the use of odd numbered single precision float registers) as recommended when enabling FPXX.
| -rw-r--r-- | src/librustc_back/target/mips_unknown_linux_gnu.rs | 2 | ||||
| -rw-r--r-- | src/librustc_back/target/mipsel_unknown_linux_gnu.rs | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/src/librustc_back/target/mips_unknown_linux_gnu.rs b/src/librustc_back/target/mips_unknown_linux_gnu.rs index 5a43e1c4c7a..cffd1daed99 100644 --- a/src/librustc_back/target/mips_unknown_linux_gnu.rs +++ b/src/librustc_back/target/mips_unknown_linux_gnu.rs @@ -25,7 +25,7 @@ pub fn target() -> TargetResult { linker_flavor: LinkerFlavor::Gcc, options: TargetOptions { cpu: "mips32r2".to_string(), - features: "+mips32r2".to_string(), + features: "+mips32r2,+fpxx,+nooddspreg".to_string(), max_atomic_width: Some(32), // see #36994 diff --git a/src/librustc_back/target/mipsel_unknown_linux_gnu.rs b/src/librustc_back/target/mipsel_unknown_linux_gnu.rs index 94f82adfacd..555855b8f81 100644 --- a/src/librustc_back/target/mipsel_unknown_linux_gnu.rs +++ b/src/librustc_back/target/mipsel_unknown_linux_gnu.rs @@ -26,7 +26,7 @@ pub fn target() -> TargetResult { options: TargetOptions { cpu: "mips32r2".to_string(), - features: "+mips32r2".to_string(), + features: "+mips32r2,+fpxx,+nooddspreg".to_string(), max_atomic_width: Some(32), // see #36994 |