49 lines
1.6 KiB
LLVM
49 lines
1.6 KiB
LLVM
; RUN: opt < %s -loop-simplify -loop-rotate -instcombine -indvars -S -verify-loop-info -verify-dom-info | FileCheck %s
|
|
|
|
; Loopsimplify should be able to merge the two loop exits
|
|
; into one, so that loop rotate can rotate the loop, so
|
|
; that indvars can promote the induction variable to i64
|
|
; without needing casts.
|
|
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n32:64"
|
|
|
|
; CHECK-LABEL: @test1
|
|
; CHECK: bb:
|
|
; CHECK: phi i64
|
|
; CHECK-NOT: phi i64
|
|
; CHECK-NOT: sext
|
|
|
|
define float @test1(float* %pTmp1, float* %peakWeight, i32 %bandEdgeIndex) nounwind {
|
|
entry:
|
|
%t0 = load float, float* %peakWeight, align 4
|
|
br label %bb1
|
|
|
|
bb: ; preds = %bb2
|
|
%t1 = sext i32 %hiPart.0 to i64
|
|
%t2 = getelementptr float, float* %pTmp1, i64 %t1
|
|
%t3 = load float, float* %t2, align 4
|
|
%t4 = fadd float %t3, %distERBhi.0
|
|
%t5 = add i32 %hiPart.0, 1
|
|
%t6 = sext i32 %t5 to i64
|
|
%t7 = getelementptr float, float* %peakWeight, i64 %t6
|
|
%t8 = load float, float* %t7, align 4
|
|
%t9 = fadd float %t8, %peakCount.0
|
|
br label %bb1
|
|
|
|
bb1: ; preds = %bb, %entry
|
|
%peakCount.0 = phi float [ %t0, %entry ], [ %t9, %bb ]
|
|
%hiPart.0 = phi i32 [ 0, %entry ], [ %t5, %bb ]
|
|
%distERBhi.0 = phi float [ 0.000000e+00, %entry ], [ %t4, %bb ]
|
|
%t10 = fcmp uge float %distERBhi.0, 2.500000e+00
|
|
br i1 %t10, label %bb3, label %bb2
|
|
|
|
bb2: ; preds = %bb1
|
|
%t11 = add i32 %bandEdgeIndex, -1
|
|
%t12 = icmp sgt i32 %t11, %hiPart.0
|
|
br i1 %t12, label %bb, label %bb3
|
|
|
|
bb3: ; preds = %bb2, %bb1
|
|
%t13 = fdiv float %peakCount.0, %distERBhi.0
|
|
ret float %t13
|
|
}
|