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...; store1 ; Aliases the load store %T { i32 22, i32 22 }, %T* %b, !alias.scope !{!11} ; store2 ; Aliases the store below and the load. No-alias with above store store %T { i32 44, i32 44 }, %T* %c, !alias.scope !{!12}, !noalias !{!11} ; store3 ; MCO wants to combine this store with the load into a memcpy store %T %val, %T* %d, !alias.scope !{!13}, !noalias !{!10, !11} ret void } !0 = !{!0} !1 = !{!1} !2 = !{!2} !3 = !{!3} !10 = !{ !10, !0 } !11 = !{ !11, !1 } !12 = !{ !12, !2 } !13 = !{ !13, !3 } Have I use...

...e executed with less stalls and cycles. However, in the latest version of LLVM, the Pre-RA-sched builds a scheduling graph(original graph) which is shown following. //original graph ----> data flow ====> control flow load1 ----> store1 ====> load2 ----> store2 ====> load3 ----> store3 //end original graph So, Pre-RA-sched is unable to schedule apart load/store instruction pair. Due to LiveRange in the Register Allocation stage, all load/store instruction pair are allocated the same register. If we change the control flow in the above original graph, the modified graph is shown...

...ls and cycles. > However, in the latest version of LLVM, the Pre-RA-sched builds a scheduling graph(original graph) which is shown following. > //original graph > ----> data flow > ====> control flow > load1 ----> store1 ====> load2 ----> store2 ====> load3 ----> store3 > //end original graph > So, Pre-RA-sched is unable to schedule apart load/store instruction pair. > Due to LiveRange in the Register Allocation stage, all load/store instruction pair are allocated the same register. > > If we change the control flow in the above original graph, the...

> From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] > On Behalf Of Haishan > Subject: [LLVMdev] Question about Pre-RA-schedule in LLVM3.3 > My clang version is 3.3 and debug build. > //test.c > int a[6] = {1, 2, 3, 4, 5, 6} > int main() { >  a[0] = a[5]; >  a[1] = a[4]; >  a[2] = a[5]; > } > //end test.c > Then test.dump is

Hi, I compile a case (test.c) to get object machine file (test.o) using clang as follows: "clang -target arm -integrated-as -c test.c -o test.o" My clang version is 3.3 and debug build. //test.c int a[6] = {1, 2, 3, 4, 5, 6} int main() { a[0] = a[5]; a[1] = a[4]; a[2] = a[5]; } //end test.c Then test.dump is generated by using the objdump tool. //test.dump ldr r1, [r0, #20]

...ync that worked fine against a 2.6.6 windows build now no longer functions. I get an error from the remote side saying --no-r: unknown option. + ./rsync -Wav --force --delete --delete-after --progress --stats --files-from=data/afs_umr.edu_dept_ua/files.clean.dat --from0 /afs/umr.edu/dept/ua/ umr-store3.cc.umr.edu::dept/ua/ building file list ... rsync: link_stat "/afs/umr.edu/dept/ua/SYNC-REPORT/AFS-ACLS.new.txt" failed: No such file or directory (2) rsync: on remote machine: --no-r: unknown option rsync error: requested action not supported (code 4) at /home/lapo/packaging/tmp/rsync-2...