From b1eff018c7a07502c673032ef6426f49364146be Mon Sep 17 00:00:00 2001 From: José Fonseca Date: Mon, 7 Sep 2009 14:25:02 +0100 Subject: llvmpipe: Utility function to get the pointer to a structure member. --- src/gallium/drivers/llvmpipe/lp_bld_struct.c | 21 +++++++++++++++++---- src/gallium/drivers/llvmpipe/lp_bld_struct.h | 12 ++++++++++++ 2 files changed, 29 insertions(+), 4 deletions(-) (limited to 'src/gallium/drivers/llvmpipe') diff --git a/src/gallium/drivers/llvmpipe/lp_bld_struct.c b/src/gallium/drivers/llvmpipe/lp_bld_struct.c index 14d2b10df9c..3998ac374fe 100644 --- a/src/gallium/drivers/llvmpipe/lp_bld_struct.c +++ b/src/gallium/drivers/llvmpipe/lp_bld_struct.c @@ -41,18 +41,31 @@ #include "lp_bld_struct.h" +LLVMValueRef +lp_build_struct_get_ptr(LLVMBuilderRef builder, + LLVMValueRef ptr, + unsigned member, + const char *name) +{ + LLVMValueRef indices[2]; + LLVMValueRef member_ptr; + indices[0] = LLVMConstInt(LLVMInt32Type(), 0, 0); + indices[1] = LLVMConstInt(LLVMInt32Type(), member, 0); + member_ptr = LLVMBuildGEP(builder, ptr, indices, Elements(indices), ""); + lp_build_name(member_ptr, "%s.%s_ptr", LLVMGetValueName(ptr), name); + return member_ptr; +} + + LLVMValueRef lp_build_struct_get(LLVMBuilderRef builder, LLVMValueRef ptr, unsigned member, const char *name) { - LLVMValueRef indices[2]; LLVMValueRef member_ptr; LLVMValueRef res; - indices[0] = LLVMConstInt(LLVMInt32Type(), 0, 0); - indices[1] = LLVMConstInt(LLVMInt32Type(), member, 0); - member_ptr = LLVMBuildGEP(builder, ptr, indices, Elements(indices), ""); + member_ptr = lp_build_struct_get_ptr(builder, ptr, member, name); res = LLVMBuildLoad(builder, member_ptr, ""); lp_build_name(res, "%s.%s", LLVMGetValueName(ptr), name); return res; diff --git a/src/gallium/drivers/llvmpipe/lp_bld_struct.h b/src/gallium/drivers/llvmpipe/lp_bld_struct.h index cbefdc9f815..740392f5611 100644 --- a/src/gallium/drivers/llvmpipe/lp_bld_struct.h +++ b/src/gallium/drivers/llvmpipe/lp_bld_struct.h @@ -53,6 +53,18 @@ offsetof(_ctype, _cmember)) +/** + * Get value pointer to a structure member. + */ +LLVMValueRef +lp_build_struct_get_ptr(LLVMBuilderRef builder, + LLVMValueRef ptr, + unsigned member, + const char *name); + +/** + * Get the value of a structure member. + */ LLVMValueRef lp_build_struct_get(LLVMBuilderRef builder, LLVMValueRef ptr, -- cgit v1.2.3