mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-17 21:29:20 +00:00
3eee6542f5
command-line option, and disable it by default. It introduced performance regressions because CodeGen is currently not able to remat such loads. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53997 91177308-0d34-0410-b5e6-96231b3b80d8
24 lines
636 B
LLVM
24 lines
636 B
LLVM
; RUN: llvm-as < %s | opt -licm -enable-licm-constant-variables | llvm-dis | grep -A 1 entry | grep load.*@a
|
|
@a = external constant float*
|
|
|
|
define void @test(i32 %count) {
|
|
entry:
|
|
br label %forcond
|
|
|
|
forcond:
|
|
%i.0 = phi i32 [ 0, %entry ], [ %inc, %forbody ]
|
|
%cmp = icmp ult i32 %i.0, %count
|
|
br i1 %cmp, label %forbody, label %afterfor
|
|
|
|
forbody:
|
|
%tmp3 = load float** @a
|
|
%arrayidx = getelementptr float* %tmp3, i32 %i.0
|
|
%tmp7 = uitofp i32 %i.0 to float
|
|
store float %tmp7, float* %arrayidx
|
|
%inc = add i32 %i.0, 1
|
|
br label %forcond
|
|
|
|
afterfor:
|
|
ret void
|
|
}
|