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jit: Require at least LLVM 10.

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Remove support for older LLVM versions.  The default on common software
distributions will be at least LLVM 10 when PostgreSQL 17 ships.

Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
Discussion: https://postgr.es/m/CA%2BhUKGLhNs5geZaVNj2EJ79Dx9W8fyWUU3HxcpZy55sMGcY%3DiA%40mail.gmail.com
This commit is contained in:
Thomas Munro
2024-01-25 15:23:04 +13:00
parent 729439607a
commit 820b5af73d
11 changed files with 17 additions and 243 deletions
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57
src/backend/jit/llvm/llvmjit.c
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@@ -34,10 +34,8 @@
#include <llvm-c/Transforms/IPO.h>
#include <llvm-c/Transforms/PassManagerBuilder.h>
#include <llvm-c/Transforms/Scalar.h>
#if LLVM_VERSION_MAJOR > 6
#include <llvm-c/Transforms/Utils.h>
#endif
#endif
#include "jit/llvmjit.h"
#include "jit/llvmjit_emit.h"
@@ -381,10 +379,7 @@ llvm_expand_funcname(struct LLVMJitContext *context, const char *basename)
void *
llvm_get_function(LLVMJitContext *context, const char *funcname)
{
#if LLVM_VERSION_MAJOR > 11 || \
defined(HAVE_DECL_LLVMORCGETSYMBOLADDRESSIN) && HAVE_DECL_LLVMORCGETSYMBOLADDRESSIN
ListCell *lc;
#endif
llvm_assert_in_fatal_section();
@@ -432,7 +427,7 @@ llvm_get_function(LLVMJitContext *context, const char *funcname)
if (addr)
return (void *) (uintptr_t) addr;
}
#elif defined(HAVE_DECL_LLVMORCGETSYMBOLADDRESSIN) && HAVE_DECL_LLVMORCGETSYMBOLADDRESSIN
#else
foreach(lc, context->handles)
{
LLVMOrcTargetAddress addr;
@@ -444,28 +439,6 @@ llvm_get_function(LLVMJitContext *context, const char *funcname)
if (addr)
return (void *) (uintptr_t) addr;
}
#elif LLVM_VERSION_MAJOR < 5
{
LLVMOrcTargetAddress addr;
if ((addr = LLVMOrcGetSymbolAddress(llvm_opt0_orc, funcname)))
return (void *) (uintptr_t) addr;
if ((addr = LLVMOrcGetSymbolAddress(llvm_opt3_orc, funcname)))
return (void *) (uintptr_t) addr;
}
#else
{
LLVMOrcTargetAddress addr;
if (LLVMOrcGetSymbolAddress(llvm_opt0_orc, &addr, funcname))
elog(ERROR, "failed to look up symbol \"%s\"", funcname);
if (addr)
return (void *) (uintptr_t) addr;
if (LLVMOrcGetSymbolAddress(llvm_opt3_orc, &addr, funcname))
elog(ERROR, "failed to look up symbol \"%s\"", funcname);
if (addr)
return (void *) (uintptr_t) addr;
}
#endif
elog(ERROR, "failed to JIT: %s", funcname);
@@ -553,12 +526,8 @@ llvm_copy_attributes_at_index(LLVMValueRef v_from, LLVMValueRef v_to, uint32 ind
int num_attributes;
LLVMAttributeRef *attrs;
num_attributes = LLVMGetAttributeCountAtIndexPG(v_from, index);
num_attributes = LLVMGetAttributeCountAtIndex(v_from, index);
/*
* Not just for efficiency: LLVM <= 3.9 crashes when
* LLVMGetAttributesAtIndex() is called for an index with 0 attributes.
*/
if (num_attributes == 0)
return;
@@ -852,7 +821,7 @@ llvm_compile_module(LLVMJitContext *context)
/* LLVMOrcLLJITAddLLVMIRModuleWithRT takes ownership of the module */
}
#elif LLVM_VERSION_MAJOR > 6
#else
{
handle->stack = compile_orc;
if (LLVMOrcAddEagerlyCompiledIR(compile_orc, &handle->orc_handle, context->module,
@@ -861,26 +830,6 @@ llvm_compile_module(LLVMJitContext *context)
/* LLVMOrcAddEagerlyCompiledIR takes ownership of the module */
}
#elif LLVM_VERSION_MAJOR > 4
{
LLVMSharedModuleRef smod;
smod = LLVMOrcMakeSharedModule(context->module);
handle->stack = compile_orc;
if (LLVMOrcAddEagerlyCompiledIR(compile_orc, &handle->orc_handle, smod,
llvm_resolve_symbol, NULL))
elog(ERROR, "failed to JIT module");
LLVMOrcDisposeSharedModuleRef(smod);
}
#else /* LLVM 4.0 and 3.9 */
{
handle->stack = compile_orc;
handle->orc_handle = LLVMOrcAddEagerlyCompiledIR(compile_orc, context->module,
llvm_resolve_symbol, NULL);
LLVMDisposeModule(context->module);
}
#endif
INSTR_TIME_SET_CURRENT(endtime);