Question abt getting the number of available registers

Hello, I'm working on estimating register pressure in SMS and using ira_available_class_regs for getting the number of available registers. However I encounter a case where ira_available_class_regs showed 64 available regs for a certain class while ira_class_hard_regs_num showed 61 so I am not sur

A question abt finding all register uses in instruction

Hello, I am trying to extract the regsiter uses in instructions using note_uses function. When encountering the following instruction I do not get r479 as a use; seemingly because of the following in note_use function: if (GET_CODE (dest) == ZERO_EXTRACT) { (*fun) (&X

Re: A question about sched_analyze_insn in sched-deps.c

Hello, >> I appriciate explanation regarding the following piece of code in >> sched_analyze_insn function (sched-deps.c): When handling jump instruction >> dependence edges are created between the jump instruction and memory >> writes and volatile reads and I'm not quite sure the reason why. > >

A question about sched_analyze_insn in sched-deps.c

Hello, I appriciate explanation regarding the following piece of code in sched_analyze_insn function (sched-deps.c): When handling jump instruction dependence edges are created between the jump instruction and memory writes and volatile reads and I'm not quite sure the reason why. Thanks, Revital

Bootstrap failure with doloop optimization on ARM

Hello, Trunk currently fails to bootstrap with SMS flags on ARM machine. (I'm using -r175900. btw, -r175091 bootstrap OK) Investigating the problem; it seems that the cause is not related to SMS but rather to the doloop optimization which is enabled only when SMS flags are set. (but that also does

Re: Bootstrap failure on PowerPC

Hello, > > Can you provide a backtrace and open a bugreport? Sure, will do that. (I deleted the bootstrap dir so I can not provide that info immediately though) Thanks, Revital

Bootstrap failure on PowerPC

Hello, I get the following bootstrap failure on ppc64-redhat-linux with trunk -r174840 compiling with -O2 flag.. Thanks, Revital /bin/sh ../../libtool --tag=CC --mode=compile /home/eres/mainline/build/./gcc/xgcc -B/home/eres/mainline/build/./gcc/ -B/home/eres/mainline/build/powerpc64-unknown-

Trunk bootstrup failure with SMS flags

Hello, Recent trunk (-r174631) is broken when bootstrap it with SMS flags on ARM (configured with --with-arch=armv7-a). The last version of trunk that I'm aware of that passes bootsrap with SMS flags is 173786. Unfortunately I still can not put my finger on the cause for this fail and I begin to

A question about handling debug_insn in schedulers

Hello, I wonder how the instruction scheduler deals with debug_insn? Looking at how SMS handles notes I wonder if this mechanism is adopted to handle debug_insn in other schedulers: notes are ignored during the scheduling procedure and are carefully placed before the instruction that follow them

Error in ira-color.c while bootstrap trunk

Hello, I get the following error while bootstrap trunk -r171713 on arm-linux-gnueabi configured with: ../gcc/configure --prefix=/home/eres/mainline/ build_armv7 --enable-checking --enable-languages=c --enable-bootstrap --with-arch=armv7-a --with-mode=thumb Thanks, Revital /home/eres/mainline/b