search for: rangecheckwid

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RFC: Add guard intrinsics to LLVM
2016 Feb 18
2
RFC: Add guard intrinsics to LLVM
...Check1 = icmp ult i32 7, %len ;; for a[7] > call void @llvm.guard_on(i1 %rangeCheck1) [ "deopt"(/* deopt > state 1 */) ] > access a[6] and a[7] > ... > ``` > > we'd like to optimize it to > > ``` > ... > %rangeCheckWide = icmp ult i32 7, %len > call void @llvm.guard_on(i1 %rangeCheckWide) [ "deopt"(/* deopt > state 0 */) ] > call void @printf("hello world") > ;; %rangeCheck1 = icmp ult i32 7, %len ;; not needed anymore > ;; call void @llvm.guard_on(i...
RFC: Add guard intrinsics to LLVM
2016 Feb 17
7
RFC: Add guard intrinsics to LLVM
...;deopt"(/* deopt state 0 */) ] call void @printf("hello world") %rangeCheck1 = icmp ult i32 7, %len ;; for a[7] call void @llvm.guard_on(i1 %rangeCheck1) [ "deopt"(/* deopt state 1 */) ] access a[6] and a[7] ... ``` we'd like to optimize it to ``` ... %rangeCheckWide = icmp ult i32 7, %len call void @llvm.guard_on(i1 %rangeCheckWide) [ "deopt"(/* deopt state 0 */) ] call void @printf("hello world") ;; %rangeCheck1 = icmp ult i32 7, %len ;; not needed anymore ;; call void @llvm.guard_on(i1 %rangeCheck1) [ "deopt"(/* deopt...