fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-06 05:08:08 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

gallivm: make sure that the alloca's are the very first thing in the function

Browse source 
otherwise mem2reg can't put them in registers
This commit is contained in:
Zack Rusin 2010-03-29 16:17:17 -04:00
parent 625e024b18
commit 012fabca72
1 changed files with 19 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
View file

@ -651,6 +651,19 @@ emit_declaration(
unsigned first = decl->Range.First;
unsigned last = decl->Range.Last;
unsigned idx, i;
LLVMBasicBlockRef current_block =
LLVMGetInsertBlock(bld->base.builder);
LLVMBasicBlockRef first_block =
LLVMGetEntryBasicBlock(
LLVMGetBasicBlockParent(current_block));
LLVMValueRef first_inst =
LLVMGetFirstInstruction(first_block);
/* we want alloca's to be the first instruction
* in the function so we need to rewind the builder
* to the very beginning */
LLVMPositionBuilderBefore(bld->base.builder,
first_inst);
for (idx = first; idx <= last; ++idx) {
boolean ok;
@ -673,10 +686,15 @@ emit_declaration(
ok = TRUE;
}
if (!ok)
if (!ok) {
LLVMPositionBuilderAtEnd(bld->base.builder,
current_block);
return FALSE;
}
}
LLVMPositionBuilderAtEnd(bld->base.builder,
current_block);
return TRUE;
}