Displaying 1 result from an estimated 1 matches for "struct_member_no_1".
2014 Apr 17
2
[LLVMdev] More Qs about llvm IR to access struct fields
...asing easiness for me to produce, but decreasing, by my guess,
useful information content for llvm. Also, I understand 3) would be
the only way, if c3 didn't start and end on byte boundaries.
; 1) Use a struct field number:
%1 = getelementptr { i16, i8, i8 }* %STvar i32 0, i32 1 ; {i8*}: &struct_member_no_1
%2 = load i8* %1
; 2) Use a byte number:
%3 = getelementptr [ 4 x i8 ]* %STvar i32 0, i32 2 ; {i8*}: &byte_number_2
%4 = load i8* %3
; 3) Use a word number, then shift & mask within:
%5 = getelementptr [ 1 x i32 ]* %STvar i32 0, i32 0 ; {i32*}: &word_number_0
%6 = load i32* %...