Displaying 4 results from an estimated 4 matches for "rewr".
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2020 Apr 07
2
[ARM] Register pressure with -mthumb forces register reload before each call
If I'm understanding what's going on in this test correctly, what's happening is:
* ARMTargetLowering::LowerCall prefers indirect calls when a function is called at least 3 times in minsize
* In thumb 1 (without -fno-omit-frame-pointer) we have effectively only 3 callee-saved registers (r4-r6)
* The function has three arguments, so those three plus the register we need to hold the
2020 Apr 15
4
[ARM] Register pressure with -mthumb forces register reload before each call
...i=5.738636e-03 w=7.440476e-03 (best) extend
$r6 80r-432r i=5.738636e-03 all
Best local split range: 80r-336r, 1.667770e-03, 4 instrs
enterIntvBefore 80r: not live
leaveIntvAfter 336r: valno 0
useIntv [80B;344r): [80B;344r):1
blit [80r,432r:0): [80r;344r)=1(%5):0 [344r;432r)=0(%4):0
rewr %bb.0 80r:1 %5:tgpr = tLDRpci %const.0, 14, $noreg :: (load 4 from constant-pool)
rewr %bb.0 144B:1 tBLXr 14, $noreg, %5:tgpr, <regmask $lr $d8 $d9 $d10 $d11 $d12 $d13 $d14 $d15 $q4 $q5 $q6 $q7 $r4 $r5 $r6 $r7 $r8 $r9 $r10 $r11 $s16 $s17 $s18 $s19 $s20 $s21 $s22 $s23 $s24 $s25 $s26 $s27 and 35...
2020 Mar 31
2
[ARM] Register pressure with -mthumb forces register reload before each call
...4r-336r i=6.312500e-03 w=6.578947e-03 end
Best local split range: 144r-240r, 1.237968e-03, 2 instrs
enterIntvBefore 144r: valno 0
leaveIntvAfter 240r: valno 0
useIntv [136r;248r): [136r;248r):1
blit [80r,336r:0): [80r;136r)=0(%4):1*%bb.0 [136r;248r)=1(%5):0 [248r;336r)=0(%4):0*%bb.0
rewr %bb.0 80r:0 %4:tgpr = tLDRpci %const.0, 14, $noreg :: (load 4 from constant-pool)
rewr %bb.0 144B:1 tBLXr 14, $noreg, %5:tgpr, <regmask $lr $d8 $d9 $d10 $d11 $d12 $d13 $d14 $d15 $q4 $q5 $q6 $q7 $r4 $r5 $r6 $r7 $r8 $r9 $r10 $r11 $s16 $s17 $s18 $s19 $s20 $s21 $s22 $s23 $s24 $s25 $s26 $s27 and 35...
2018 Jun 08
2
Fail to install llvm/clang on debian
...::RealFileSystem::openFileForRead(const llvm::Twine&)’:
/home/yubo/git/llvm/tools/clang/lib/Basic/VirtualFileSystem.cpp:262:46: error: ‘OF_None’ is not a member of ‘llvm::sys::fs’ sys::fs::openFileForRead(Name, FD, sys::fs::OF_None, &RealName))
[ 75%] Building CXX object tools/clang/lib/Rewrite/CMakeFiles/clangRewrite.dir/HTMLRewrite.cpp.o
tools/clang/lib/Basic/CMakeFiles/clangBasic.dir/build.make:1244: recipe for target 'tools/clang/lib/Basic/CMakeFiles/clangBasic.dir/VirtualFileSystem.cpp.o' failed
make[2]: *** [tools/clang/lib/Basic/CMakeFiles/clangBasic.dir/VirtualFileSys...