Hi, I have some code where we generate some weird code that has stores followed by a load from the same location. For an example we get: add x14, sp, 240 add x15, sp, 232 str x14, [sp, 136] mov w2, w27 ldr w1, [sp, 136] str x15, [sp, 136] ldr w0, [sp, 136]
The RTL originally using an offset of the frame pointer and in DImode and then we use it in SImode because pointers are 32bit in ILP32. Can you explain how LRA decides to create this code and ways of improving it? This is in perlbench in SPEC CPU 2006. I can provide the preprocessed sources (since I am using LTO) if needed. Thanks, Andrew Pinski
