diff options
| author | Ben Crocker <[email protected]> | 2017-01-18 20:44:09 -0500 |
|---|---|---|
| committer | Emil Velikov <[email protected]> | 2017-02-20 18:21:22 +0000 |
| commit | 3f1b6ef2aa9c99bebe539f1de5a5054d90fc5dc3 (patch) | |
| tree | 6bddfe0d14d744a87bed5d6038c90f7f33ce9264 | |
| parent | b934aae36410e09892e772b26f61fed5d037fc69 (diff) | |
gallivm: Reenable PPC VSX (v3)
Reenable the PPC64LE Vector-Scalar Extension for LLVM versions >= 3.8.1,
now that LLVM bug 26775 and its corollary, 25503, are fixed.
Amendment: remove extraneous spaces in macro def & invocations.
We would prefer a runtime check, e.g. via an LLVMQueryString
(analogous to glGetString, eglQueryString) or LLVMGetVersion API,
but no such API exists at this time.
Signed-off-by: Ben Crocker <[email protected]>
[Emil Velikov: remove LLVM_VERSION macro]
Signed-off-by: Emil Velikov <[email protected]>
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_misc.cpp | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp index 6c64e4d2a6c..e005469a565 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp +++ b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp @@ -607,7 +607,8 @@ lp_build_create_jit_compiler_for_module(LLVMExecutionEngineRef *OutJIT, #if defined(PIPE_ARCH_PPC) MAttrs.push_back(util_cpu_caps.has_altivec ? "+altivec" : "-altivec"); -#if HAVE_LLVM >= 0x0304 +#if (HAVE_LLVM >= 0x0304) +#if (HAVE_LLVM <= 0x0307) || (HAVE_LLVM == 0x0308 && MESA_LLVM_VERSION_PATCH == 0) /* * Make sure VSX instructions are disabled * See LLVM bug https://llvm.org/bugs/show_bug.cgi?id=25503#c7 @@ -615,6 +616,17 @@ lp_build_create_jit_compiler_for_module(LLVMExecutionEngineRef *OutJIT, if (util_cpu_caps.has_altivec) { MAttrs.push_back("-vsx"); } +#else + /* + * However, bug 25503 is fixed, by the same fix that fixed + * bug 26775, in versions of LLVM later than 3.8 (starting with 3.8.1): + * Make sure VSX instructions are ENABLED + * See LLVM bug https://llvm.org/bugs/show_bug.cgi?id=26775 + */ + if (util_cpu_caps.has_altivec) { + MAttrs.push_back("+vsx"); + } +#endif #endif #endif |