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gallivm: add create_builder_at_entry helper function

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Reduces code duplication.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Nicolai Hähnle 2016-08-09 12:23:41 +02:00
parent f4204ba53d
commit 17e88e276c
1 changed files with 22 additions and 23 deletions
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45
src/gallium/auxiliary/gallivm/lp_bld_flow.c
View file

@ -454,6 +454,26 @@ lp_build_endif(struct lp_build_if_state *ifthen)
}
static LLVMBuilderRef
create_builder_at_entry(struct gallivm_state *gallivm)
{
LLVMBuilderRef builder = gallivm->builder;
LLVMBasicBlockRef current_block = LLVMGetInsertBlock(builder);
LLVMValueRef function = LLVMGetBasicBlockParent(current_block);
LLVMBasicBlockRef first_block = LLVMGetEntryBasicBlock(function);
LLVMValueRef first_instr = LLVMGetFirstInstruction(first_block);
LLVMBuilderRef first_builder = LLVMCreateBuilderInContext(gallivm->context);
if (first_instr) {
LLVMPositionBuilderBefore(first_builder, first_instr);
} else {
LLVMPositionBuilderAtEnd(first_builder, first_block);
}
return first_builder;
}
/**
* Allocate a scalar (or vector) variable.
*
@ -475,19 +495,9 @@ lp_build_alloca(struct gallivm_state *gallivm,
const char *name)
{
LLVMBuilderRef builder = gallivm->builder;
LLVMBasicBlockRef current_block = LLVMGetInsertBlock(builder);
LLVMValueRef function = LLVMGetBasicBlockParent(current_block);
LLVMBasicBlockRef first_block = LLVMGetEntryBasicBlock(function);
LLVMValueRef first_instr = LLVMGetFirstInstruction(first_block);
LLVMBuilderRef first_builder = LLVMCreateBuilderInContext(gallivm->context);
LLVMBuilderRef first_builder = create_builder_at_entry(gallivm);
LLVMValueRef res;
if (first_instr) {
LLVMPositionBuilderBefore(first_builder, first_instr);
} else {
LLVMPositionBuilderAtEnd(first_builder, first_block);
}
res = LLVMBuildAlloca(first_builder, type, name);
LLVMBuildStore(builder, LLVMConstNull(type), res);
@ -517,20 +527,9 @@ lp_build_array_alloca(struct gallivm_state *gallivm,
LLVMValueRef count,
const char *name)
{
LLVMBuilderRef builder = gallivm->builder;
LLVMBasicBlockRef current_block = LLVMGetInsertBlock(builder);
LLVMValueRef function = LLVMGetBasicBlockParent(current_block);
LLVMBasicBlockRef first_block = LLVMGetEntryBasicBlock(function);
LLVMValueRef first_instr = LLVMGetFirstInstruction(first_block);
LLVMBuilderRef first_builder = LLVMCreateBuilderInContext(gallivm->context);
LLVMBuilderRef first_builder = create_builder_at_entry(gallivm);
LLVMValueRef res;
if (first_instr) {
LLVMPositionBuilderBefore(first_builder, first_instr);
} else {
LLVMPositionBuilderAtEnd(first_builder, first_block);
}
res = LLVMBuildArrayAlloca(first_builder, type, count, name);
LLVMDisposeBuilder(first_builder);