diff options
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_misc.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp index 4115f1e9f40..6c64e4d2a6c 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp +++ b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp @@ -644,6 +644,19 @@ lp_build_create_jit_compiler_for_module(LLVMExecutionEngineRef *OutJIT, * when not using MCJIT so no instructions are generated which the old JIT * can't handle. Not entirely sure if we really need to do anything yet. */ +#if defined(PIPE_ARCH_LITTLE_ENDIAN) && defined(PIPE_ARCH_PPC_64) + /* + * Versions of LLVM prior to 4.0 lacked a table entry for "POWER8NVL", + * resulting in (big-endian) "generic" being returned on + * little-endian Power8NVL systems. The result was that code that + * attempted to load the least significant 32 bits of a 64-bit quantity + * from memory loaded the wrong half. This resulted in failures in some + * Piglit tests, e.g. + * .../arb_gpu_shader_fp64/execution/conversion/frag-conversion-explicit-double-uint + */ + if (MCPU == "generic") + MCPU = "pwr8"; +#endif builder.setMCPU(MCPU); if (gallivm_debug & (GALLIVM_DEBUG_IR | GALLIVM_DEBUG_ASM | GALLIVM_DEBUG_DUMP_BC)) { debug_printf("llc -mcpu option: %s\n", MCPU.str().c_str()); |