llvm/test/CodeGen/Thumb2/cross-rc-coalescing-2.ll
Evan Cheng 30fdb5c2ac - Clean up some crappy code which deals with coalescing of copies which look at
extract_subreg / insert_subreg, etc.
- Add support for more aggressive insert_subreg coalescing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101971 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21 00:44:22 +00:00

68 lines
3.7 KiB
LLVM

; RUN: llc < %s -mtriple=thumbv7-apple-darwin9 -mcpu=cortex-a8 | grep vmov.f32 | count 1
define arm_apcscc void @fht(float* nocapture %fz, i16 signext %n) nounwind {
entry:
br label %bb5
bb5: ; preds = %bb5, %entry
br i1 undef, label %bb5, label %bb.nph
bb.nph: ; preds = %bb5
br label %bb7
bb7: ; preds = %bb9, %bb.nph
%s1.02 = phi float [ undef, %bb.nph ], [ %35, %bb9 ] ; <float> [#uses=3]
%tmp79 = add i32 undef, undef ; <i32> [#uses=1]
%tmp53 = sub i32 undef, undef ; <i32> [#uses=1]
%0 = fadd float 0.000000e+00, 1.000000e+00 ; <float> [#uses=2]
%1 = fmul float 0.000000e+00, 0.000000e+00 ; <float> [#uses=2]
br label %bb8
bb8: ; preds = %bb8, %bb7
%tmp54 = add i32 0, %tmp53 ; <i32> [#uses=0]
%fi.1 = getelementptr float* %fz, i32 undef ; <float*> [#uses=2]
%tmp80 = add i32 0, %tmp79 ; <i32> [#uses=1]
%scevgep81 = getelementptr float* %fz, i32 %tmp80 ; <float*> [#uses=1]
%2 = load float* undef, align 4 ; <float> [#uses=1]
%3 = fmul float %2, %1 ; <float> [#uses=1]
%4 = load float* null, align 4 ; <float> [#uses=2]
%5 = fmul float %4, %0 ; <float> [#uses=1]
%6 = fsub float %3, %5 ; <float> [#uses=1]
%7 = fmul float %4, %1 ; <float> [#uses=1]
%8 = fadd float undef, %7 ; <float> [#uses=2]
%9 = load float* %fi.1, align 4 ; <float> [#uses=2]
%10 = fsub float %9, %8 ; <float> [#uses=1]
%11 = fadd float %9, %8 ; <float> [#uses=1]
%12 = fsub float 0.000000e+00, %6 ; <float> [#uses=1]
%13 = fsub float 0.000000e+00, undef ; <float> [#uses=2]
%14 = fmul float undef, %0 ; <float> [#uses=1]
%15 = fadd float %14, undef ; <float> [#uses=2]
%16 = load float* %scevgep81, align 4 ; <float> [#uses=2]
%17 = fsub float %16, %15 ; <float> [#uses=1]
%18 = fadd float %16, %15 ; <float> [#uses=2]
%19 = load float* undef, align 4 ; <float> [#uses=2]
%20 = fsub float %19, %13 ; <float> [#uses=2]
%21 = fadd float %19, %13 ; <float> [#uses=1]
%22 = fmul float %s1.02, %18 ; <float> [#uses=1]
%23 = fmul float 0.000000e+00, %20 ; <float> [#uses=1]
%24 = fsub float %22, %23 ; <float> [#uses=1]
%25 = fmul float 0.000000e+00, %18 ; <float> [#uses=1]
%26 = fmul float %s1.02, %20 ; <float> [#uses=1]
%27 = fadd float %25, %26 ; <float> [#uses=1]
%28 = fadd float %11, %27 ; <float> [#uses=1]
store float %28, float* %fi.1, align 4
%29 = fadd float %12, %24 ; <float> [#uses=1]
store float %29, float* null, align 4
%30 = fmul float 0.000000e+00, %21 ; <float> [#uses=1]
%31 = fmul float %s1.02, %17 ; <float> [#uses=1]
%32 = fsub float %30, %31 ; <float> [#uses=1]
%33 = fsub float %10, %32 ; <float> [#uses=1]
store float %33, float* undef, align 4
%34 = icmp slt i32 undef, undef ; <i1> [#uses=1]
br i1 %34, label %bb8, label %bb9
bb9: ; preds = %bb8
%35 = fadd float 0.000000e+00, undef ; <float> [#uses=1]
br label %bb7
}