br label %for.cond
for.cond: ; preds = %for.inc, %entry
- %2 = load i32* %i, align 4
+ %2 = load i32, i32* %i, align 4
%cmp = icmp slt i32 %2, 8
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
- %3 = load i32* %i, align 4
+ %3 = load i32, i32* %i, align 4
%idxprom = sext i32 %3 to i64
- %arrayidx = getelementptr inbounds [8 x i32]* %x, i32 0, i64 %idxprom
- %4 = load i32* %arrayidx, align 4
+ %arrayidx = getelementptr inbounds [8 x i32], [8 x i32]* %x, i32 0, i64 %idxprom
+ %4 = load i32, i32* %arrayidx, align 4
%add = add nsw i32 %4, 1
store i32 %add, i32* %xx, align 4
- %5 = load i32* %xx, align 4
+ %5 = load i32, i32* %xx, align 4
%add1 = add nsw i32 %5, 12
store i32 %add1, i32* %xx, align 4
- %6 = load i32* %xx, align 4
+ %6 = load i32, i32* %xx, align 4
%add2 = add nsw i32 %6, 23
store i32 %add2, i32* %xx, align 4
- %7 = load i32* %xx, align 4
+ %7 = load i32, i32* %xx, align 4
%add3 = add nsw i32 %7, 34
store i32 %add3, i32* %xx, align 4
- %8 = load i32* %i, align 4
+ %8 = load i32, i32* %i, align 4
%idxprom4 = sext i32 %8 to i64
- %arrayidx5 = getelementptr inbounds [8 x i32]* %y, i32 0, i64 %idxprom4
- %9 = load i32* %arrayidx5, align 4
- %10 = load i32* %yy, align 4
+ %arrayidx5 = getelementptr inbounds [8 x i32], [8 x i32]* %y, i32 0, i64 %idxprom4
+ %9 = load i32, i32* %arrayidx5, align 4
+ %10 = load i32, i32* %yy, align 4
%mul = mul nsw i32 %10, %9
store i32 %mul, i32* %yy, align 4
br label %for.inc
for.inc: ; preds = %for.body
- %11 = load i32* %i, align 4
+ %11 = load i32, i32* %i, align 4
%inc = add nsw i32 %11, 1
store i32 %inc, i32* %i, align 4
br label %for.cond
for.end: ; preds = %for.cond
- %12 = load i32* %xx, align 4
- %13 = load i32* %yy, align 4
+ %12 = load i32, i32* %xx, align 4
+ %13 = load i32, i32* %yy, align 4
%add6 = add nsw i32 %12, %13
ret i32 %add6
}
; Nothing explicit to check other than llc not crashing.
define { <16 x i8>, <16 x i8> } @test_v16i8_post_imm_ld2(i8* %A, i8** %ptr) {
%ld2 = tail call { <16 x i8>, <16 x i8> } @llvm.aarch64.neon.ld2.v16i8.p0i8(i8* %A)
- %tmp = getelementptr i8* %A, i32 32
+ %tmp = getelementptr i8, i8* %A, i32 32
store i8* %tmp, i8** %ptr
ret { <16 x i8>, <16 x i8> } %ld2
}
}
declare void @llvm.trap()
+
+; Regression test for PR20057: "permanent hazard"'
+; Resource contention on LDST.
+; CHECK: ********** MI Scheduling **********
+; CHECK: testLdStConflict
+; CHECK: *** Final schedule for BB#1 ***
+; CHECK: LD4Fourv2d
+; CHECK: STRQui
+; CHECK: ********** INTERVALS **********
+define void @testLdStConflict() {
+entry:
+ br label %loop
+
+loop:
+ %0 = call { <2 x i64>, <2 x i64>, <2 x i64>, <2 x i64> } @llvm.aarch64.neon.ld4.v2i64.p0i8(i8* null)
+ %ptr = bitcast i8* undef to <2 x i64>*
+ store <2 x i64> zeroinitializer, <2 x i64>* %ptr, align 4
+ %ptr1 = bitcast i8* undef to <2 x i64>*
+ store <2 x i64> zeroinitializer, <2 x i64>* %ptr1, align 4
+ %ptr2 = bitcast i8* undef to <2 x i64>*
+ store <2 x i64> zeroinitializer, <2 x i64>* %ptr2, align 4
+ %ptr3 = bitcast i8* undef to <2 x i64>*
+ store <2 x i64> zeroinitializer, <2 x i64>* %ptr3, align 4
+ %ptr4 = bitcast i8* undef to <2 x i64>*
+ store <2 x i64> zeroinitializer, <2 x i64>* %ptr4, align 4
+ br label %loop
+}
+
+declare { <2 x i64>, <2 x i64>, <2 x i64>, <2 x i64> } @llvm.aarch64.neon.ld4.v2i64.p0i8(i8*)