; RUN: llc -march=hexagon -mcpu=hexagonv5 -enable-pipeliner < %s | FileCheck %s
-; RUN: llc -march=hexagon -mcpu=hexagonv5 -O3 < %s | FileCheck %s
; Multiply and accumulate
; CHECK: mpyi([[REG0:r([0-9]+)]],[[REG1:r([0-9]+)]])
-; CHECK-NEXT: add(r{{[0-9]+}},#4)
-; CHECK-DAG: [[REG1]] = memw(r{{[0-9]+}}+r{{[0-9]+}}<<#0)
-; CHECK-DAG: [[REG0]] = memw(r{{[0-9]+}}+r{{[0-9]+}}<<#0)
+; CHECK-NEXT: [[REG1]] = memw(r{{[0-9]+}}++#4)
+; CHECK-NEXT: [[REG0]] = memw(r{{[0-9]+}}++#4)
; CHECK-NEXT: endloop0
-define i32 @foo(i32* %a, i32* %b, i32 %n) {
-entry:
- br label %for.body
+define i32 @f0(i32* %a0, i32* %a1, i32 %a2) {
+b0:
+ br label %b1
-for.body:
- %sum.03 = phi i32 [ 0, %entry ], [ %add, %for.body ]
- %arrayidx.phi = phi i32* [ %a, %entry ], [ %arrayidx.inc, %for.body ]
- %arrayidx1.phi = phi i32* [ %b, %entry ], [ %arrayidx1.inc, %for.body ]
- %i.02 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
- %0 = load i32, i32* %arrayidx.phi, align 4
- %1 = load i32, i32* %arrayidx1.phi, align 4
- %mul = mul nsw i32 %1, %0
- %add = add nsw i32 %mul, %sum.03
- %inc = add nsw i32 %i.02, 1
- %exitcond = icmp eq i32 %inc, 10000
- %arrayidx.inc = getelementptr i32, i32* %arrayidx.phi, i32 1
- %arrayidx1.inc = getelementptr i32, i32* %arrayidx1.phi, i32 1
- br i1 %exitcond, label %for.end, label %for.body
+b1: ; preds = %b1, %b0
+ %v0 = phi i32 [ 0, %b0 ], [ %v7, %b1 ]
+ %v1 = phi i32* [ %a0, %b0 ], [ %v10, %b1 ]
+ %v2 = phi i32* [ %a1, %b0 ], [ %v11, %b1 ]
+ %v3 = phi i32 [ 0, %b0 ], [ %v8, %b1 ]
+ %v4 = load i32, i32* %v1, align 4
+ %v5 = load i32, i32* %v2, align 4
+ %v6 = mul nsw i32 %v5, %v4
+ %v7 = add nsw i32 %v6, %v0
+ %v8 = add nsw i32 %v3, 1
+ %v9 = icmp eq i32 %v8, 10000
+ %v10 = getelementptr i32, i32* %v1, i32 1
+ %v11 = getelementptr i32, i32* %v2, i32 1
+ br i1 %v9, label %b2, label %b1
-for.end:
- ret i32 %add
+b2: ; preds = %b1
+ ret i32 %v7
}
-
; RUN: llc -march=hexagon -mcpu=hexagonv5 -enable-pipeliner < %s | FileCheck %s
-; RUN: llc -march=hexagon -mcpu=hexagonv5 -O3 < %s | FileCheck %s
+; RUN: llc -march=hexagon -mcpu=hexagonv60 -enable-pipeliner < %s | FileCheck %s --check-prefix=CHECKV60
; Simple vector total.
; CHECK: loop0(.LBB0_[[LOOP:.]],
; CHECK: .LBB0_[[LOOP]]:
-; CHECK: add([[REG:r([0-9]+)]],r{{[0-9]+}})
-; CHECK-NEXT: add(r{{[0-9]+}},#4)
-; CHECK-NEXT: [[REG]] = memw(r{{[0-9]+}}+r{{[0-9]+}}<<#0)
+; CHECK: add(r{{[0-9]+}},r{{[0-9]+}})
+; CHECK-NEXT: memw(r{{[0-9]+}}++#4)
; CHECK-NEXT: endloop0
-define i32 @foo(i32* %a, i32 %n) {
-entry:
- br label %for.body
+; V60 does not pipeline due to latencies.
+; CHECKV60: memw(r{{[0-9]+}}++#4)
+; CHECKV60: add(r{{[0-9]+}},r{{[0-9]+}})
-for.body:
- %sum.02 = phi i32 [ 0, %entry ], [ %add, %for.body ]
- %arrayidx.phi = phi i32* [ %a, %entry ], [ %arrayidx.inc, %for.body ]
- %i.01 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
- %0 = load i32, i32* %arrayidx.phi, align 4
- %add = add nsw i32 %0, %sum.02
- %inc = add nsw i32 %i.01, 1
- %exitcond = icmp eq i32 %inc, 10000
- %arrayidx.inc = getelementptr i32, i32* %arrayidx.phi, i32 1
- br i1 %exitcond, label %for.end, label %for.body
+define i32 @f0(i32* %a0, i32 %a1) {
+b0:
+ br label %b1
-for.end:
- ret i32 %add
+b1: ; preds = %b1, %b0
+ %v0 = phi i32 [ 0, %b0 ], [ %v4, %b1 ]
+ %v1 = phi i32* [ %a0, %b0 ], [ %v7, %b1 ]
+ %v2 = phi i32 [ 0, %b0 ], [ %v5, %b1 ]
+ %v3 = load i32, i32* %v1, align 4
+ %v4 = add nsw i32 %v3, %v0
+ %v5 = add nsw i32 %v2, 1
+ %v6 = icmp eq i32 %v5, 10000
+ %v7 = getelementptr i32, i32* %v1, i32 1
+ br i1 %v6, label %b2, label %b1
+
+b2: ; preds = %b1
+ ret i32 %v4
}