From 36e28d42b3e6212bf0cbcbb363ddf822c8d8f5cc Mon Sep 17 00:00:00 2001 From: José Fonseca Date: Sat, 8 May 2010 13:02:46 +0100 Subject: gallivm: Fix segfaul when inserting allocas in an empty function. --- src/gallium/auxiliary/gallivm/lp_bld_flow.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'src') diff --git a/src/gallium/auxiliary/gallivm/lp_bld_flow.c b/src/gallium/auxiliary/gallivm/lp_bld_flow.c index 8f15b1d287..560ce1de73 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_flow.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_flow.c @@ -821,8 +821,11 @@ lp_build_alloca(LLVMBuilderRef builder, LLVMBuilderRef first_builder = LLVMCreateBuilder(); LLVMValueRef res; - LLVMPositionBuilderAtEnd(first_builder, first_block); - LLVMPositionBuilderBefore(first_builder, first_instr); + if (first_instr) { + LLVMPositionBuilderBefore(first_builder, first_instr); + } else { + LLVMPositionBuilderAtEnd(first_builder, first_block); + } res = LLVMBuildAlloca(first_builder, type, name); @@ -859,7 +862,11 @@ lp_build_array_alloca(LLVMBuilderRef builder, LLVMBuilderRef first_builder = LLVMCreateBuilder(); LLVMValueRef res; - LLVMPositionBuilderBefore(first_builder, first_instr); + if (first_instr) { + LLVMPositionBuilderBefore(first_builder, first_instr); + } else { + LLVMPositionBuilderAtEnd(first_builder, first_block); + } res = LLVMBuildArrayAlloca(first_builder, type, count, name); -- cgit v1.2.3