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-rw-r--r--llvm/lib/CodeGen/RegAllocGreedy.cpp6
-rw-r--r--llvm/lib/Target/AArch64/AArch64Subtarget.h2
-rw-r--r--llvm/test/CodeGen/AArch64/ragreedy-local-interval-cost.ll80
3 files changed, 19 insertions, 69 deletions
diff --git a/llvm/lib/CodeGen/RegAllocGreedy.cpp b/llvm/lib/CodeGen/RegAllocGreedy.cpp
index fc12a499438..27de7fe4588 100644
--- a/llvm/lib/CodeGen/RegAllocGreedy.cpp
+++ b/llvm/lib/CodeGen/RegAllocGreedy.cpp
@@ -3225,8 +3225,10 @@ bool RAGreedy::runOnMachineFunction(MachineFunction &mf) {
MF->getSubtarget().enableRALocalReassignment(
MF->getTarget().getOptLevel());
- EnableAdvancedRASplitCost = ConsiderLocalIntervalCost ||
- MF->getSubtarget().enableAdvancedRASplitCost();
+ EnableAdvancedRASplitCost =
+ ConsiderLocalIntervalCost.getNumOccurrences()
+ ? ConsiderLocalIntervalCost
+ : MF->getSubtarget().enableAdvancedRASplitCost();
if (VerifyEnabled)
MF->verify(this, "Before greedy register allocator");
diff --git a/llvm/lib/Target/AArch64/AArch64Subtarget.h b/llvm/lib/Target/AArch64/AArch64Subtarget.h
index 13d29c2a9d4..a1ed9a34c3e 100644
--- a/llvm/lib/Target/AArch64/AArch64Subtarget.h
+++ b/llvm/lib/Target/AArch64/AArch64Subtarget.h
@@ -475,6 +475,8 @@ public:
bool enableEarlyIfConversion() const override;
+ bool enableAdvancedRASplitCost() const override { return true; }
+
std::unique_ptr<PBQPRAConstraint> getCustomPBQPConstraints() const override;
bool isCallingConvWin64(CallingConv::ID CC) const {
diff --git a/llvm/test/CodeGen/AArch64/ragreedy-local-interval-cost.ll b/llvm/test/CodeGen/AArch64/ragreedy-local-interval-cost.ll
index ad2f4ff4f89..f3bd66ceae8 100644
--- a/llvm/test/CodeGen/AArch64/ragreedy-local-interval-cost.ll
+++ b/llvm/test/CodeGen/AArch64/ragreedy-local-interval-cost.ll
@@ -26,9 +26,10 @@ define dso_local void @run_test() local_unnamed_addr #0 {
; CHECK-NEXT: adrp x11, A
; CHECK-NEXT: mov x8, xzr
; CHECK-NEXT: mov x9, xzr
-; CHECK-NEXT: movi v14.2d, #0000000000000000
+; CHECK-NEXT: movi v0.2d, #0000000000000000
; CHECK-NEXT: add x10, x10, :lo12:B+48
; CHECK-NEXT: add x11, x11, :lo12:A
+; CHECK-NEXT: str q0, [sp] // 16-byte Folded Spill
; CHECK-NEXT: // implicit-def: $q1
; CHECK-NEXT: // implicit-def: $q2
; CHECK-NEXT: // implicit-def: $q3
@@ -47,8 +48,8 @@ define dso_local void @run_test() local_unnamed_addr #0 {
; CHECK-NEXT: // implicit-def: $q24
; CHECK-NEXT: // implicit-def: $q25
; CHECK-NEXT: // implicit-def: $q26
-; CHECK-NEXT: // implicit-def: $q28
; CHECK-NEXT: // implicit-def: $q27
+; CHECK-NEXT: // implicit-def: $q28
; CHECK-NEXT: // implicit-def: $q29
; CHECK-NEXT: // implicit-def: $q30
; CHECK-NEXT: // implicit-def: $q31
@@ -60,78 +61,20 @@ define dso_local void @run_test() local_unnamed_addr #0 {
; CHECK-NEXT: // implicit-def: $q13
; CHECK-NEXT: .LBB0_1: // %for.cond1.preheader
; CHECK-NEXT: // =>This Inner Loop Header: Depth=1
-; CHECK-NEXT: str q13, [sp] // 16-byte Folded Spill
; CHECK-NEXT: mov x12, xzr
; CHECK-NEXT: ldr q15, [x8]
-; CHECK-NEXT: mov v13.16b, v12.16b
-; CHECK-NEXT: mov v12.16b, v11.16b
-; CHECK-NEXT: mov v11.16b, v10.16b
-; CHECK-NEXT: mov v10.16b, v9.16b
-; CHECK-NEXT: mov v9.16b, v8.16b
-; CHECK-NEXT: mov v8.16b, v31.16b
-; CHECK-NEXT: mov v31.16b, v30.16b
-; CHECK-NEXT: mov v30.16b, v29.16b
-; CHECK-NEXT: mov v29.16b, v27.16b
-; CHECK-NEXT: mov v27.16b, v26.16b
-; CHECK-NEXT: mov v26.16b, v25.16b
-; CHECK-NEXT: mov v25.16b, v24.16b
-; CHECK-NEXT: mov v24.16b, v23.16b
-; CHECK-NEXT: mov v23.16b, v22.16b
-; CHECK-NEXT: mov v22.16b, v21.16b
-; CHECK-NEXT: mov v21.16b, v20.16b
-; CHECK-NEXT: mov v20.16b, v19.16b
-; CHECK-NEXT: mov v19.16b, v18.16b
-; CHECK-NEXT: mov v18.16b, v17.16b
-; CHECK-NEXT: mov v17.16b, v16.16b
-; CHECK-NEXT: mov v16.16b, v7.16b
-; CHECK-NEXT: mov v7.16b, v6.16b
-; CHECK-NEXT: mov v6.16b, v5.16b
-; CHECK-NEXT: mov v5.16b, v4.16b
-; CHECK-NEXT: mov v4.16b, v3.16b
-; CHECK-NEXT: mov v3.16b, v2.16b
-; CHECK-NEXT: mov v2.16b, v1.16b
-; CHECK-NEXT: mov v1.16b, v14.16b
; CHECK-NEXT: ldr q14, [x12]
; CHECK-NEXT: ldr q0, [x10], #64
; CHECK-NEXT: ldr x18, [x12]
; CHECK-NEXT: fmov x15, d15
; CHECK-NEXT: mov x14, v15.d[1]
-; CHECK-NEXT: mov x12, v14.d[1]
-; CHECK-NEXT: mul x1, x15, x18
; CHECK-NEXT: fmov x13, d14
-; CHECK-NEXT: mov v14.16b, v1.16b
-; CHECK-NEXT: mov v1.16b, v2.16b
-; CHECK-NEXT: mov v2.16b, v3.16b
-; CHECK-NEXT: mov v3.16b, v4.16b
-; CHECK-NEXT: mov v4.16b, v5.16b
-; CHECK-NEXT: mov v5.16b, v6.16b
-; CHECK-NEXT: mov v6.16b, v7.16b
-; CHECK-NEXT: mov v7.16b, v16.16b
-; CHECK-NEXT: mov v16.16b, v17.16b
-; CHECK-NEXT: mov v17.16b, v18.16b
-; CHECK-NEXT: mov v18.16b, v19.16b
-; CHECK-NEXT: mov v19.16b, v20.16b
-; CHECK-NEXT: mov v20.16b, v21.16b
-; CHECK-NEXT: mov v21.16b, v22.16b
-; CHECK-NEXT: mov v22.16b, v23.16b
-; CHECK-NEXT: mov v23.16b, v24.16b
-; CHECK-NEXT: mov v24.16b, v25.16b
-; CHECK-NEXT: mov v25.16b, v26.16b
-; CHECK-NEXT: mov v26.16b, v27.16b
-; CHECK-NEXT: mov v27.16b, v29.16b
-; CHECK-NEXT: mov v29.16b, v30.16b
-; CHECK-NEXT: mov v30.16b, v31.16b
-; CHECK-NEXT: mov v31.16b, v8.16b
-; CHECK-NEXT: mov v8.16b, v9.16b
-; CHECK-NEXT: mov v9.16b, v10.16b
-; CHECK-NEXT: mov v10.16b, v11.16b
-; CHECK-NEXT: mov v11.16b, v12.16b
-; CHECK-NEXT: mov v12.16b, v13.16b
-; CHECK-NEXT: ldr q13, [sp] // 16-byte Folded Reload
+; CHECK-NEXT: mul x1, x15, x18
; CHECK-NEXT: mov x16, v0.d[1]
; CHECK-NEXT: fmov x17, d0
; CHECK-NEXT: fmov d0, x1
; CHECK-NEXT: mul x1, x14, x18
+; CHECK-NEXT: mov x12, v14.d[1]
; CHECK-NEXT: ldr x0, [x8]
; CHECK-NEXT: mov v0.d[1], x1
; CHECK-NEXT: mul x1, x13, x18
@@ -144,6 +87,7 @@ define dso_local void @run_test() local_unnamed_addr #0 {
; CHECK-NEXT: add v11.2d, v11.2d, v0.2d
; CHECK-NEXT: fmov d0, x1
; CHECK-NEXT: mul x18, x16, x18
+; CHECK-NEXT: ldr q14, [sp] // 16-byte Folded Reload
; CHECK-NEXT: mov v0.d[1], x18
; CHECK-NEXT: mul x18, x15, x0
; CHECK-NEXT: add x1, x11, x8
@@ -194,28 +138,29 @@ define dso_local void @run_test() local_unnamed_addr #0 {
; CHECK-NEXT: mul x17, x17, x1
; CHECK-NEXT: mov v0.d[1], x12
; CHECK-NEXT: mul x16, x16, x1
-; CHECK-NEXT: add v27.2d, v27.2d, v0.2d
+; CHECK-NEXT: add v28.2d, v28.2d, v0.2d
; CHECK-NEXT: fmov d0, x17
; CHECK-NEXT: mov v0.d[1], x16
; CHECK-NEXT: add x8, x8, #8 // =8
-; CHECK-NEXT: add v28.2d, v28.2d, v0.2d
+; CHECK-NEXT: add v27.2d, v27.2d, v0.2d
; CHECK-NEXT: cmp x8, #64 // =64
; CHECK-NEXT: add x9, x9, #1 // =1
+; CHECK-NEXT: str q14, [sp] // 16-byte Folded Spill
; CHECK-NEXT: b.ne .LBB0_1
; CHECK-NEXT: // %bb.2: // %for.cond.cleanup
; CHECK-NEXT: adrp x8, C
; CHECK-NEXT: add x8, x8, :lo12:C
+; CHECK-NEXT: ldr q0, [sp] // 16-byte Folded Reload
; CHECK-NEXT: stp q13, q12, [x8]
; CHECK-NEXT: stp q11, q10, [x8, #32]
; CHECK-NEXT: stp q9, q8, [x8, #64]
-; CHECK-NEXT: stp q14, q2, [x8, #464]
; CHECK-NEXT: ldp d9, d8, [sp, #64] // 16-byte Folded Reload
; CHECK-NEXT: ldp d11, d10, [sp, #48] // 16-byte Folded Reload
; CHECK-NEXT: ldp d13, d12, [sp, #32] // 16-byte Folded Reload
; CHECK-NEXT: ldp d15, d14, [sp, #16] // 16-byte Folded Reload
; CHECK-NEXT: stp q31, q30, [x8, #96]
-; CHECK-NEXT: stp q29, q27, [x8, #144]
-; CHECK-NEXT: stp q28, q26, [x8, #176]
+; CHECK-NEXT: stp q29, q28, [x8, #144]
+; CHECK-NEXT: stp q27, q26, [x8, #176]
; CHECK-NEXT: str q25, [x8, #208]
; CHECK-NEXT: stp q24, q23, [x8, #240]
; CHECK-NEXT: stp q22, q21, [x8, #272]
@@ -224,6 +169,7 @@ define dso_local void @run_test() local_unnamed_addr #0 {
; CHECK-NEXT: stp q16, q7, [x8, #368]
; CHECK-NEXT: stp q6, q5, [x8, #400]
; CHECK-NEXT: stp q4, q3, [x8, #432]
+; CHECK-NEXT: stp q0, q2, [x8, #464]
; CHECK-NEXT: str q1, [x8, #496]
; CHECK-NEXT: add sp, sp, #80 // =80
; CHECK-NEXT: ret
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