[llvm] 475d228 - [Hexagon] Reduce the spill alignment for double/quad vector classes
Krzysztof Parzyszek via llvm-commits
llvm-commits at lists.llvm.org
Sun Nov 13 12:02:58 PST 2022
Author: Krzysztof Parzyszek
Date: 2022-11-13T14:02:36-06:00
New Revision: 475d22895a94db3fd711bdd1b3da7933b87ccda0
URL: https://github.com/llvm/llvm-project/commit/475d22895a94db3fd711bdd1b3da7933b87ccda0
DIFF: https://github.com/llvm/llvm-project/commit/475d22895a94db3fd711bdd1b3da7933b87ccda0.diff
LOG: [Hexagon] Reduce the spill alignment for double/quad vector classes
The spill alignment for HVX vectors is always the single vector size,
regardless of whether the class describes vector tuples or not.
Added:
Modified:
llvm/lib/Target/Hexagon/HexagonRegisterInfo.td
llvm/test/CodeGen/Hexagon/hvx-reuse-fi-base.ll
Removed:
################################################################################
diff --git a/llvm/lib/Target/Hexagon/HexagonRegisterInfo.td b/llvm/lib/Target/Hexagon/HexagonRegisterInfo.td
index 4c387c8ba638b..cb5b6c6e50f53 100644
--- a/llvm/lib/Target/Hexagon/HexagonRegisterInfo.td
+++ b/llvm/lib/Target/Hexagon/HexagonRegisterInfo.td
@@ -513,7 +513,7 @@ def HvxVR : RegisterClass<"Hexagon", [VecI8, VecI16, VecI32, VecF16, VecF32], 51
def HvxWR : RegisterClass<"Hexagon", [VecPI8, VecPI16, VecPI32, VecPF16, VecPF32], 1024,
(add (sequence "W%u", 0, 15), (sequence "WR%u", 0, 15))> {
let RegInfos = RegInfoByHwMode<[Hvx64, Hvx128, DefaultMode],
- [RegInfo<1024,1024,1024>, RegInfo<2048,2048,2048>, RegInfo<1024,1024,1024>]>;
+ [RegInfo<1024,1024,512>, RegInfo<2048,2048,1024>, RegInfo<1024,1024,512>]>;
}
def HvxQR : RegisterClass<"Hexagon", [VecI1, VecQ8, VecQ16, VecQ32], 128,
@@ -525,7 +525,7 @@ def HvxQR : RegisterClass<"Hexagon", [VecI1, VecQ8, VecQ16, VecQ32], 128,
def HvxVQR : RegisterClass<"Hexagon", [untyped], 2048,
(add (sequence "VQ%u", 0, 7))> {
let RegInfos = RegInfoByHwMode<[Hvx64, Hvx128, DefaultMode],
- [RegInfo<2048,2048,2048>, RegInfo<4096,4096,4096>, RegInfo<2048,2048,2048>]>;
+ [RegInfo<2048,2048,512>, RegInfo<4096,4096,1024>, RegInfo<2048,2048,512>]>;
}
// Core register classes
diff --git a/llvm/test/CodeGen/Hexagon/hvx-reuse-fi-base.ll b/llvm/test/CodeGen/Hexagon/hvx-reuse-fi-base.ll
index 73da83b921e20..51a279ee4ab50 100644
--- a/llvm/test/CodeGen/Hexagon/hvx-reuse-fi-base.ll
+++ b/llvm/test/CodeGen/Hexagon/hvx-reuse-fi-base.ll
@@ -32,44 +32,43 @@ define dso_local void @f2() #0 {
; CHECK: // %bb.0: // %b0
; CHECK-NEXT: {
; CHECK-NEXT: r1:0 = combine(#2,##16843009)
-; CHECK-NEXT: allocframe(r29,#1536):raw
+; CHECK-NEXT: allocframe(r29,#1152):raw
; CHECK-NEXT: }
; CHECK-NEXT: {
; CHECK-NEXT: v1 = vsplat(r1)
; CHECK-NEXT: r17:16 = combine(#-1,#1)
-; CHECK-NEXT: r29 = and(r29,#-256)
+; CHECK-NEXT: r29 = and(r29,#-128)
; CHECK-NEXT: memd(r30+#-8) = r17:16
; CHECK-NEXT: } // 8-byte Folded Spill
; CHECK-NEXT: {
; CHECK-NEXT: v0 = vsplat(r16)
-; CHECK-NEXT: r2 = add(r29,#2048)
-; CHECK-NEXT: memd(r30+#-16) = r19:18
-; CHECK-NEXT: } // 8-byte Folded Spill
+; CHECK-NEXT: vmem(r29+#6) = v0.new
+; CHECK-NEXT: } // 128-byte Folded Spill
; CHECK-NEXT: {
; CHECK-NEXT: q0 = vand(v0,r0)
; CHECK-NEXT: r18 = ##-2147483648
-; CHECK-NEXT: vmem(r2+#-7) = v0
-; CHECK-NEXT: } // 128-byte Folded Spill
+; CHECK-NEXT: memd(r30+#-16) = r19:18
+; CHECK-NEXT: } // 8-byte Folded Spill
; CHECK-NEXT: {
-; CHECK-NEXT: v0 = vand(q0,r17)
; CHECK-NEXT: r0 = ##g1
; CHECK-NEXT: memd(r30+#-24) = r21:20
; CHECK-NEXT: } // 8-byte Folded Spill
; CHECK-NEXT: {
+; CHECK-NEXT: v0 = vand(q0,r17)
; CHECK-NEXT: r19 = ##g0+128
-; CHECK-NEXT: vmem(r2+#-6) = v0
+; CHECK-NEXT: vmem(r29+#7) = v0.new
; CHECK-NEXT: }
; CHECK-NEXT: {
-; CHECK-NEXT: v3:2.h = vadd(v0.ub,v1.ub)
; CHECK-NEXT: r20 = ##g0
-; CHECK-NEXT: vmem(r29+#5) = v1
+; CHECK-NEXT: vmem(r29+#3) = v1
; CHECK-NEXT: } // 128-byte Folded Spill
; CHECK-NEXT: {
-; CHECK-NEXT: vmem(r29+#6) = v2
+; CHECK-NEXT: v3:2.h = vadd(v0.ub,v1.ub)
+; CHECK-NEXT: vmem(r29+#4) = v2.new
; CHECK-NEXT: } // 256-byte Folded Spill
; CHECK-NEXT: {
; CHECK-NEXT: v31:30.uw = vrmpy(v3:2.ub,r18.ub,#0)
-; CHECK-NEXT: vmem(r29+#7) = v3
+; CHECK-NEXT: vmem(r29+#5) = v3
; CHECK-NEXT: } // 256-byte Folded Spill
; CHECK-NEXT: {
; CHECK-NEXT: vmem(r19+#0) = v31
@@ -79,18 +78,15 @@ define dso_local void @f2() #0 {
; CHECK-NEXT: vmem(r20+#0) = v30
; CHECK-NEXT: }
; CHECK-NEXT: {
-; CHECK-NEXT: r0 = add(r29,#2048)
-; CHECK-NEXT: }
-; CHECK-NEXT: {
-; CHECK-NEXT: v0 = vmem(r0+#-7)
+; CHECK-NEXT: v0 = vmem(r29+#6)
; CHECK-NEXT: } // 128-byte Folded Reload
; CHECK-NEXT: {
; CHECK-NEXT: v1:0.h = vadd(v0.ub,v0.ub)
; CHECK-NEXT: r0 = ##g2
-; CHECK-NEXT: vmem(r29+#2) = v0.new
+; CHECK-NEXT: vmem(r29+#1) = v0.new
; CHECK-NEXT: } // 256-byte Folded Spill
; CHECK-NEXT: {
-; CHECK-NEXT: vmem(r29+#3) = v1
+; CHECK-NEXT: vmem(r29+#2) = v1
; CHECK-NEXT: } // 256-byte Folded Spill
; CHECK-NEXT: {
; CHECK-NEXT: v1:0.uw = vrmpy(v1:0.ub,r17.ub,#0)
@@ -102,10 +98,10 @@ define dso_local void @f2() #0 {
; CHECK-NEXT: }
; CHECK-NEXT: {
; CHECK-NEXT: r0 = ##2147483647
-; CHECK-NEXT: v0 = vmem(r29+#2)
+; CHECK-NEXT: v0 = vmem(r29+#1)
; CHECK-NEXT: } // 256-byte Folded Reload
; CHECK-NEXT: {
-; CHECK-NEXT: v1 = vmem(r29+#3)
+; CHECK-NEXT: v1 = vmem(r29+#2)
; CHECK-NEXT: } // 256-byte Folded Reload
; CHECK-NEXT: {
; CHECK-NEXT: v1:0.uw = vrmpy(v1:0.ub,r0.ub,#1)
@@ -117,10 +113,10 @@ define dso_local void @f2() #0 {
; CHECK-NEXT: vmem(r20+#0) = v0
; CHECK-NEXT: }
; CHECK-NEXT: {
-; CHECK-NEXT: v0 = vmem(r29+#6)
+; CHECK-NEXT: v0 = vmem(r29+#4)
; CHECK-NEXT: } // 256-byte Folded Reload
; CHECK-NEXT: {
-; CHECK-NEXT: v1 = vmem(r29+#7)
+; CHECK-NEXT: v1 = vmem(r29+#5)
; CHECK-NEXT: } // 256-byte Folded Reload
; CHECK-NEXT: {
; CHECK-NEXT: v1:0.uw = vrmpy(v1:0.ub,r18.ub,#1)
@@ -132,10 +128,10 @@ define dso_local void @f2() #0 {
; CHECK-NEXT: }
; CHECK-NEXT: {
; CHECK-NEXT: r0 = #0
-; CHECK-NEXT: v0 = vmem(r29+#6)
+; CHECK-NEXT: v0 = vmem(r29+#4)
; CHECK-NEXT: } // 256-byte Folded Reload
; CHECK-NEXT: {
-; CHECK-NEXT: v1 = vmem(r29+#7)
+; CHECK-NEXT: v1 = vmem(r29+#5)
; CHECK-NEXT: } // 256-byte Folded Reload
; CHECK-NEXT: {
; CHECK-NEXT: v1:0.uw = vrmpy(v1:0.ub,r0.ub,#1)
@@ -146,11 +142,10 @@ define dso_local void @f2() #0 {
; CHECK-NEXT: vmem(r20+#0) = v0
; CHECK-NEXT: }
; CHECK-NEXT: {
-; CHECK-NEXT: r0 = add(r29,#2048)
-; CHECK-NEXT: v1 = vmem(r29+#5)
+; CHECK-NEXT: v0 = vmem(r29+#6)
; CHECK-NEXT: } // 128-byte Folded Reload
; CHECK-NEXT: {
-; CHECK-NEXT: v0 = vmem(r0+#-7)
+; CHECK-NEXT: v1 = vmem(r29+#3)
; CHECK-NEXT: } // 128-byte Folded Reload
; CHECK-NEXT: {
; CHECK-NEXT: v1:0.h = vadd(v0.ub,v1.ub)
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