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[PowerPC][NFC] add test case for lwa - loop ds form prep

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czhengsz 2019-12-11 05:58:18 -05:00
parent 78412f523a
commit 826d45cbe6
1 changed files with 73 additions and 0 deletions
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73
test/CodeGen/PowerPC/loop-instr-form-prepare.ll
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@ -754,3 +754,76 @@ define float @test_ds_combine_float_int(i8* %0, i32 signext %1) {
%30 = phi float [ 0.000000e+00, %2 ], [ %26, %6 ] %30 = phi float [ 0.000000e+00, %2 ], [ %26, %6 ]
ret float %30 ret float %30
} }
; test_ds_lwa_prep:
; long long test_ds_lwa_prep(char *p, int count) {
; long long i=0, res=0;
; int DISP1 = 4001;
; int DISP2 = 4002;
; int DISP3 = 4006;
; int DISP4 = 4010;
; for (; i < count ; i++) {
; long long x1 = *(int *)(p + i + DISP1);
; long long x2 = *(int *)(p + i + DISP2);
; long long x3 = *(int *)(p + i + DISP3);
; long long x4 = *(int *)(p + i + DISP4);
; res += x1*x2*x3*x4;
; }
; return res + count;
; }
define i64 @test_ds_lwa_prep(i8* %0, i32 signext %1) {
; CHECK-LABEL: test_ds_lwa_prep:
; CHECK: li r6, 1
; CHECK-NEXT: li r7, 2
; CHECK-NEXT: li r8, 6
; CHECK-NEXT: li r9, 10
; CHECK: .LBB9_2: #
; CHECK-NEXT: lwax r11, r3, r6
; CHECK-NEXT: lwax r12, r3, r7
; CHECK-NEXT: lwax r0, r3, r8
; CHECK-NEXT: addi r10, r3, 1
; CHECK-NEXT: mulld r11, r12, r11
; CHECK-NEXT: lwax r3, r3, r9
; CHECK-NEXT: mulld r11, r11, r0
; CHECK-NEXT: maddld r5, r11, r3, r5
; CHECK-NEXT: mr r3, r10
; CHECK-NEXT: bdnz .LBB9_2
%3 = sext i32 %1 to i64
%4 = icmp sgt i32 %1, 0
br i1 %4, label %5, label %31
5: ; preds = %2, %5
%6 = phi i64 [ %29, %5 ], [ 0, %2 ]
%7 = phi i64 [ %28, %5 ], [ 0, %2 ]
%8 = getelementptr inbounds i8, i8* %0, i64 %6
%9 = getelementptr inbounds i8, i8* %8, i64 1
%10 = bitcast i8* %9 to i32*
%11 = load i32, i32* %10, align 4
%12 = sext i32 %11 to i64
%13 = getelementptr inbounds i8, i8* %8, i64 2
%14 = bitcast i8* %13 to i32*
%15 = load i32, i32* %14, align 4
%16 = sext i32 %15 to i64
%17 = getelementptr inbounds i8, i8* %8, i64 6
%18 = bitcast i8* %17 to i32*
%19 = load i32, i32* %18, align 4
%20 = sext i32 %19 to i64
%21 = getelementptr inbounds i8, i8* %8, i64 10
%22 = bitcast i8* %21 to i32*
%23 = load i32, i32* %22, align 4
%24 = sext i32 %23 to i64
%25 = mul nsw i64 %16, %12
%26 = mul nsw i64 %25, %20
%27 = mul nsw i64 %26, %24
%28 = add nsw i64 %27, %7
%29 = add nuw nsw i64 %6, 1
%30 = icmp eq i64 %29, %3
br i1 %30, label %31, label %5
31: ; preds = %5, %2
%32 = phi i64 [ 0, %2 ], [ %28, %5 ]
%33 = add nsw i64 %32, %3
ret i64 %33
}