https://github.com/hekota updated
https://github.com/llvm/llvm-project/pull/152253
>From 3594a7af4e21daa461cb928fc1119bd09cc114e9 Mon Sep 17 00:00:00 2001
From: Helena Kotas <heko...@microsoft.com>
Date: Tue, 5 Aug 2025 22:27:42 -0700
Subject: [PATCH 1/3] [DirectX] Fix resource binding analysis incorrectly
removing duplicates
---
llvm/lib/Frontend/HLSL/HLSLBinding.cpp | 2 +-
.../DXILPostOptimizationValidation.cpp | 8 +--
.../CodeGen/DirectX/Metadata/srv_metadata.ll | 45 +++++++++++------
.../CodeGen/DirectX/Metadata/uav_metadata.ll | 49 ++++++++++++-------
4 files changed, 66 insertions(+), 38 deletions(-)
diff --git a/llvm/lib/Frontend/HLSL/HLSLBinding.cpp
b/llvm/lib/Frontend/HLSL/HLSLBinding.cpp
index d581311f22028..45391460354d0 100644
--- a/llvm/lib/Frontend/HLSL/HLSLBinding.cpp
+++ b/llvm/lib/Frontend/HLSL/HLSLBinding.cpp
@@ -76,7 +76,7 @@ BindingInfo BindingInfoBuilder::calculateBindingInfo(
// remove duplicates
Binding *NewEnd = llvm::unique(Bindings);
if (NewEnd != Bindings.end())
- Bindings.erase(NewEnd);
+ Bindings.erase(NewEnd, Bindings.end());
BindingInfo Info;
diff --git a/llvm/lib/Target/DirectX/DXILPostOptimizationValidation.cpp
b/llvm/lib/Target/DirectX/DXILPostOptimizationValidation.cpp
index 398dcbb8d1737..9d995bc70a997 100644
--- a/llvm/lib/Target/DirectX/DXILPostOptimizationValidation.cpp
+++ b/llvm/lib/Target/DirectX/DXILPostOptimizationValidation.cpp
@@ -63,9 +63,7 @@ static void reportOverlappingError(Module &M, ResourceInfo R1,
}
static void reportOverlappingBinding(Module &M, DXILResourceMap &DRM) {
- if (DRM.empty())
- return;
-
+ bool ErrorFound = false;
for (const auto &ResList :
{DRM.srvs(), DRM.uavs(), DRM.cbuffers(), DRM.samplers()}) {
if (ResList.empty())
@@ -77,11 +75,15 @@ static void reportOverlappingBinding(Module &M,
DXILResourceMap &DRM) {
while (RI != ResList.end() &&
PrevRI->getBinding().overlapsWith(RI->getBinding())) {
reportOverlappingError(M, *PrevRI, *RI);
+ ErrorFound = true;
RI++;
}
PrevRI = CurrentRI;
}
}
+ assert(ErrorFound && "this function should be called only when if "
+ "DXILResourceBindingInfo::hasOverlapingBinding() is "
+ "true, yet no overlapping binding was found");
}
static void reportErrors(Module &M, DXILResourceMap &DRM,
diff --git a/llvm/test/CodeGen/DirectX/Metadata/srv_metadata.ll
b/llvm/test/CodeGen/DirectX/Metadata/srv_metadata.ll
index abab5c9fb1166..5c9fb93d7f570 100644
--- a/llvm/test/CodeGen/DirectX/Metadata/srv_metadata.ll
+++ b/llvm/test/CodeGen/DirectX/Metadata/srv_metadata.ll
@@ -1,6 +1,6 @@
; RUN: opt -S -dxil-translate-metadata < %s | FileCheck %s
; RUN: opt -S --passes="dxil-pretty-printer" < %s 2>&1 | FileCheck %s
--check-prefix=PRINT
-; RUN: llc %s --filetype=asm -o - < %s 2>&1 | FileCheck %s
--check-prefixes=CHECK,PRINT
+; RUN: llc %s --filetype=asm -o - 2>&1 | FileCheck %s
--check-prefixes=CHECK,PRINT
target datalayout =
"e-m:e-p:32:32-i1:32-i8:8-i16:16-i32:32-i64:64-f16:16-f32:32-f64:64-n8:16:32:64"
target triple = "dxil-pc-shadermodel6.6-compute"
@@ -14,20 +14,22 @@ target triple = "dxil-pc-shadermodel6.6-compute"
@Six.str = private unnamed_addr constant [4 x i8] c"Six\00", align 1
@Seven.str = private unnamed_addr constant [6 x i8] c"Seven\00", align 1
@Array.str = private unnamed_addr constant [6 x i8] c"Array\00", align 1
+@Array2.str = private unnamed_addr constant [7 x i8] c"Array2\00", align 1
; PRINT:; Resource Bindings:
; PRINT-NEXT:;
-; PRINT-NEXT:; Name Type Format Dim
ID HLSL Bind Count
-; PRINT-NEXT:; ------------------------------ ---------- ------- -----------
------- -------------- ------
-; PRINT-NEXT:; Zero texture f16 buf
T0 t0 1
-; PRINT-NEXT:; One texture f32 buf
T1 t1 1
-; PRINT-NEXT:; Two texture f64 buf
T2 t2 1
-; PRINT-NEXT:; Three texture i32 buf
T3 t3 1
-; PRINT-NEXT:; Four texture byte r/o
T4 t5 1
-; PRINT-NEXT:; Five texture struct r/o
T5 t6 1
-; PRINT-NEXT:; Six texture u64 buf
T6 t10,space2 1
-; PRINT-NEXT:; Array texture f32 buf
T7 t4,space3 100
-; PRINT-NEXT:; Seven texture u64 buf
T8 t20,space5 1
+; PRINT-NEXT:; Name Type Format Dim
ID HLSL Bind Count
+; PRINT-NEXT:; ------------------------------ ---------- ------- -----------
------- -------------- --------
+; PRINT-NEXT:; Zero texture f16 buf
T0 t0 1
+; PRINT-NEXT:; One texture f32 buf
T1 t1 1
+; PRINT-NEXT:; Two texture f64 buf
T2 t2 1
+; PRINT-NEXT:; Three texture i32 buf
T3 t3 1
+; PRINT-NEXT:; Four texture byte r/o
T4 t5 1
+; PRINT-NEXT:; Five texture struct r/o
T5 t6 1
+; PRINT-NEXT:; Six texture u64 buf
T6 t10,space2 1
+; PRINT-NEXT:; Array texture f32 buf
T7 t4,space3 100
+; PRINT-NEXT:; Array2 texture f64 buf
T8 t2,space4 unbounded
+; PRINT-NEXT:; Seven texture u64 buf
T9 t20,space5 1
;
define void @test() #0 {
@@ -60,19 +62,28 @@ define void @test() #0 {
@llvm.dx.resource.handlefrombinding(i32 2, i32 10, i32 1, i32 0,
i1 false, ptr @Six.str)
; Same buffer type as Six - should have the same type in metadata
- ; Buffer<double> Seven : register(t10, space2);
+ ; Buffer<double> Seven : register(t20, space5);
%Seven_h = call target("dx.TypedBuffer", i64, 0, 0, 0)
@llvm.dx.resource.handlefrombinding(i32 5, i32 20, i32 1, i32 0,
i1 false, ptr @Seven.str)
; Buffer<float4> Array[100] : register(t4, space3);
; Buffer<float4> B1 = Array[30];
- ; Buffer<float4> B1 = Array[42];
+ ; Buffer<float4> B2 = Array[42];
; resource array accesses should produce one metadata entry
%Array_30_h = call target("dx.TypedBuffer", <4 x float>, 0, 0, 0)
@llvm.dx.resource.handlefrombinding(i32 3, i32 4, i32 100, i32 30,
i1 false, ptr @Array.str)
%Array_42_h = call target("dx.TypedBuffer", <4 x float>, 0, 0, 0)
@llvm.dx.resource.handlefrombinding(i32 3, i32 4, i32 100, i32 42,
i1 false, ptr @Array.str)
+ ; test unbounded resource array
+ ; Buffer<double> Array2[] : register(t2, space4);
+ ; Buffer<double> C1 = Array[10];
+ ; Buffer<double> C2 = Array[20];
+ %Array2_10_h = call target("dx.TypedBuffer", double, 0, 0, 0)
+ @llvm.dx.resource.handlefrombinding(i32 4, i32 2, i32 -1, i32 10,
i1 false, ptr @Array2.str)
+ %Array2_20_h = call target("dx.TypedBuffer", double, 0, 0, 0)
+ @llvm.dx.resource.handlefrombinding(i32 4, i32 2, i32 -1, i32 20,
i1 false, ptr @Array2.str)
+
ret void
}
@@ -95,6 +106,7 @@ attributes #0 = { noinline nounwind "hlsl.shader"="compute" }
; CHECK: @Five = external constant %"StructuredBuffer<int16_t>"
; CHECK: @Six = external constant %"Buffer<uint32_t>"
; CHECK: @Array = external constant %"Buffer<float4>"
+; CHECK: @Array2 = external constant %"Buffer<double>"
; CHECK: @Seven = external constant %"Buffer<uint32_t>"
; CHECK: !dx.resources = !{[[ResList:[!][0-9]+]]}
@@ -102,7 +114,7 @@ attributes #0 = { noinline nounwind "hlsl.shader"="compute"
}
; CHECK: [[ResList]] = !{[[SRVList:[!][0-9]+]], null, null, null}
; CHECK: [[SRVList]] = !{![[Zero:[0-9]+]], ![[One:[0-9]+]], ![[Two:[0-9]+]],
; CHECK-SAME: ![[Three:[0-9]+]], ![[Four:[0-9]+]], ![[Five:[0-9]+]],
-; CHECK-SAME: ![[Six:[0-9]+]], ![[Array:[0-9]+]], ![[Seven:[0-9]+]]}
+; CHECK-SAME: ![[Six:[0-9]+]], ![[Array:[0-9]+]], ![[Array2:[0-9]+]],
![[Seven:[0-9]+]]}
; CHECK: ![[Zero]] = !{i32 0, ptr @Zero, !"Zero", i32 0, i32 0, i32 1, i32 10,
i32 0, ![[Half:[0-9]+]]}
; CHECK: ![[Half]] = !{i32 0, i32 8}
@@ -118,4 +130,5 @@ attributes #0 = { noinline nounwind "hlsl.shader"="compute"
}
; CHECK: ![[Six]] = !{i32 6, ptr @Six, !"Six", i32 2, i32 10, i32 1, i32 10,
i32 0, ![[U64:[0-9]+]]}
; CHECK: ![[U64]] = !{i32 0, i32 7}
; CHECK: ![[Array]] = !{i32 7, ptr @Array, !"Array", i32 3, i32 4, i32 100,
i32 10, i32 0, ![[Float]]}
-; CHECK: ![[Seven]] = !{i32 8, ptr @Seven, !"Seven", i32 5, i32 20, i32 1, i32
10, i32 0, ![[U64]]}
+; CHECK: ![[Array2]] = !{i32 8, ptr @Array2, !"Array2", i32 4, i32 2, i32 -1,
i32 10, i32 0, ![[Double]]}
+; CHECK: ![[Seven]] = !{i32 9, ptr @Seven, !"Seven", i32 5, i32 20, i32 1, i32
10, i32 0, ![[U64]]}
diff --git a/llvm/test/CodeGen/DirectX/Metadata/uav_metadata.ll
b/llvm/test/CodeGen/DirectX/Metadata/uav_metadata.ll
index 9893f8b9ea4d7..77f36dd40fd7c 100644
--- a/llvm/test/CodeGen/DirectX/Metadata/uav_metadata.ll
+++ b/llvm/test/CodeGen/DirectX/Metadata/uav_metadata.ll
@@ -1,6 +1,6 @@
; RUN: opt -S -dxil-translate-metadata < %s | FileCheck %s
; RUN: opt -S --passes="dxil-pretty-printer" < %s 2>&1 | FileCheck %s
--check-prefix=PRINT
-; RUN: llc %s --filetype=asm -o - < %s 2>&1 | FileCheck %s
--check-prefixes=CHECK,PRINT
+; RUN: llc %s --filetype=asm -o - 2>&1 | FileCheck %s
--check-prefixes=CHECK,PRINT
target datalayout =
"e-m:e-p:32:32-i1:32-i8:8-i16:16-i32:32-i64:64-f16:16-f32:32-f64:64-n8:16:32:64"
target triple = "dxil-pc-shadermodel6.6-compute"
@@ -17,23 +17,25 @@ target triple = "dxil-pc-shadermodel6.6-compute"
@Nine.str = private unnamed_addr constant [5 x i8] c"Nine\00", align 1
@Ten.str = private unnamed_addr constant [4 x i8] c"Ten\00", align 1
@Array.str = private unnamed_addr constant [6 x i8] c"Array\00", align 1
+@Array2.str = private unnamed_addr constant [7 x i8] c"Array2\00", align 1
; PRINT:; Resource Bindings:
; PRINT-NEXT:;
-; PRINT-NEXT:; Name Type Format Dim
ID HLSL Bind Count
-; PRINT-NEXT:; ------------------------------ ---------- ------- -----------
------- -------------- ------
-; PRINT-NEXT:; Zero UAV f16 buf
U0 u0 1
-; PRINT-NEXT:; One UAV f32 buf
U1 u1 1
-; PRINT-NEXT:; Two UAV f64 buf
U2 u2 1
-; PRINT-NEXT:; Three UAV i32 buf
U3 u3 1
-; PRINT-NEXT:; Four UAV byte r/w
U4 u5 1
-; PRINT-NEXT:; Five UAV struct r/w
U5 u6 1
-; PRINT-NEXT:; Six UAV i32 buf
U6 u7 1
-; PRINT-NEXT:; Seven UAV struct r/w
U7 u8 1
-; PRINT-NEXT:; Eight UAV byte r/w
U8 u9 1
-; PRINT-NEXT:; Nine UAV u64 buf
U9 u10,space2 1
-; PRINT-NEXT:; Array UAV f32 buf
U10 u4,space3 100
-; PRINT-NEXT:; Ten UAV u64 buf
U11 u22,space5 1
+; PRINT-NEXT:; Name Type Format Dim
ID HLSL Bind Count
+; PRINT-NEXT:; ------------------------------ ---------- ------- -----------
------- -------------- ---------
+; PRINT-NEXT:; Zero UAV f16 buf
U0 u0 1
+; PRINT-NEXT:; One UAV f32 buf
U1 u1 1
+; PRINT-NEXT:; Two UAV f64 buf
U2 u2 1
+; PRINT-NEXT:; Three UAV i32 buf
U3 u3 1
+; PRINT-NEXT:; Four UAV byte r/w
U4 u5 1
+; PRINT-NEXT:; Five UAV struct r/w
U5 u6 1
+; PRINT-NEXT:; Six UAV i32 buf
U6 u7 1
+; PRINT-NEXT:; Seven UAV struct r/w
U7 u8 1
+; PRINT-NEXT:; Eight UAV byte r/w
U8 u9 1
+; PRINT-NEXT:; Nine UAV u64 buf
U9 u10,space2 1
+; PRINT-NEXT:; Array UAV f32 buf
U10 u4,space3 100
+; PRINT-NEXT:; Array2 UAV f64 buf
U11 u2,space4 unbounded
+; PRINT-NEXT:; Ten UAV u64 buf
U12 u22,space5 1
define void @test() #0 {
; RWBuffer<half4> Zero : register(u0)
@@ -78,13 +80,22 @@ define void @test() #0 {
; RWBuffer<float4> Array[100] : register(u4, space3);
; RWBuffer<float4> B1 = Array[30];
- ; RWBuffer<float4> B1 = Array[42];
+ ; RWBuffer<float4> B2 = Array[42];
; resource array accesses should produce one metadata entry
%Array_30_h = call target("dx.TypedBuffer", <4 x float>, 1, 0, 0)
@llvm.dx.resource.handlefrombinding(i32 3, i32 4, i32 100, i32 30,
i1 false, ptr @Array.str)
%Array_42_h = call target("dx.TypedBuffer", <4 x float>, 1, 0, 0)
@llvm.dx.resource.handlefrombinding(i32 3, i32 4, i32 100, i32 42,
i1 false, ptr @Array.str)
+ ; test unbounded resource array
+ ; RWBuffer<double> Array2[] : register(u2, space4);
+ ; RWBuffer<double> C1 = Array[10];
+ ; RWBuffer<double> C2 = Array[20];
+ %Array2_10_h = call target("dx.TypedBuffer", double, 1, 0, 0)
+ @llvm.dx.resource.handlefrombinding(i32 4, i32 2, i32 -1, i32 10,
i1 false, ptr @Array2.str)
+ %Array2_20_h = call target("dx.TypedBuffer", double, 1, 0, 0)
+ @llvm.dx.resource.handlefrombinding(i32 4, i32 2, i32 -1, i32 20,
i1 false, ptr @Array2.str)
+
; Same buffer type as Nine - should have the same type in metadata
; RWBuffer<double> Ten : register(u2);
%Ten_h = call target("dx.TypedBuffer", i64, 1, 0, 0)
@@ -118,6 +129,7 @@ attributes #0 = { noinline nounwind "hlsl.shader"="compute"
}
; CHECK: @Eight = external constant %RasterizerOrderedByteAddressBuffer
; CHECK: @Nine = external constant %"RWBuffer<uint32_t>"
; CHECK: @Array = external constant %"RWBuffer<float4>"
+; CHECK: @Array2 = external constant %"RWBuffer<double>"
; CHECK: @Ten = external constant %"RWBuffer<uint32_t>"
; CHECK: !dx.resources = !{[[ResList:[!][0-9]+]]}
@@ -126,7 +138,7 @@ attributes #0 = { noinline nounwind "hlsl.shader"="compute"
}
; CHECK: [[UAVList]] = !{![[Zero:[0-9]+]], ![[One:[0-9]+]], ![[Two:[0-9]+]],
; CHECK-SAME: ![[Three:[0-9]+]], ![[Four:[0-9]+]], ![[Five:[0-9]+]],
; CHECK-SAME: ![[Six:[0-9]+]], ![[Seven:[0-9]+]], ![[Eight:[0-9]+]],
-; CHECK-SAME: ![[Nine:[0-9]+]], ![[Array:[0-9]+]], ![[Ten:[0-9]+]]}
+; CHECK-SAME: ![[Nine:[0-9]+]], ![[Array:[0-9]+]], ![[Array2:[0-9]+]],
![[Ten:[0-9]+]]}
; CHECK: ![[Zero]] = !{i32 0, ptr @Zero, !"Zero", i32 0, i32 0, i32 1, i32 10,
i1 false, i1 false, i1 false, ![[Half:[0-9]+]]}
; CHECK: ![[Half]] = !{i32 0, i32 8}
@@ -146,4 +158,5 @@ attributes #0 = { noinline nounwind "hlsl.shader"="compute"
}
; CHECK: ![[Nine]] = !{i32 9, ptr @Nine, !"Nine", i32 2, i32 10, i32 1, i32
10, i1 false, i1 false, i1 false, ![[U64:[0-9]+]]}
; CHECK: ![[U64]] = !{i32 0, i32 7}
; CHECK: ![[Array]] = !{i32 10, ptr @Array, !"Array", i32 3, i32 4, i32 100,
i32 10, i1 false, i1 false, i1 false, ![[Float]]}
-; CHECK: ![[Ten]] = !{i32 11, ptr @Ten, !"Ten", i32 5, i32 22, i32 1, i32 10,
i1 false, i1 false, i1 false, ![[U64:[0-9]+]]}
+; CHECK: ![[Array2]] = !{i32 11, ptr @Array2, !"Array2", i32 4, i32 2, i32 -1,
i32 10, i1 false, i1 false, i1 false, ![[Double]]}
+; CHECK: ![[Ten]] = !{i32 12, ptr @Ten, !"Ten", i32 5, i32 22, i32 1, i32 10,
i1 false, i1 false, i1 false, ![[U64:[0-9]+]]}
>From 4da01296c830dba300c408b99f93850d4ebdeb7f Mon Sep 17 00:00:00 2001
From: Helena Kotas <heko...@microsoft.com>
Date: Tue, 5 Aug 2025 23:05:42 -0700
Subject: [PATCH 2/3] adjust padding
---
.../CodeGen/DirectX/Metadata/srv_metadata.ll | 22 +++++++++----------
1 file changed, 11 insertions(+), 11 deletions(-)
diff --git a/llvm/test/CodeGen/DirectX/Metadata/srv_metadata.ll
b/llvm/test/CodeGen/DirectX/Metadata/srv_metadata.ll
index 5c9fb93d7f570..b27020633e3a2 100644
--- a/llvm/test/CodeGen/DirectX/Metadata/srv_metadata.ll
+++ b/llvm/test/CodeGen/DirectX/Metadata/srv_metadata.ll
@@ -18,18 +18,18 @@ target triple = "dxil-pc-shadermodel6.6-compute"
; PRINT:; Resource Bindings:
; PRINT-NEXT:;
-; PRINT-NEXT:; Name Type Format Dim
ID HLSL Bind Count
-; PRINT-NEXT:; ------------------------------ ---------- ------- -----------
------- -------------- --------
-; PRINT-NEXT:; Zero texture f16 buf
T0 t0 1
-; PRINT-NEXT:; One texture f32 buf
T1 t1 1
-; PRINT-NEXT:; Two texture f64 buf
T2 t2 1
-; PRINT-NEXT:; Three texture i32 buf
T3 t3 1
-; PRINT-NEXT:; Four texture byte r/o
T4 t5 1
-; PRINT-NEXT:; Five texture struct r/o
T5 t6 1
-; PRINT-NEXT:; Six texture u64 buf
T6 t10,space2 1
-; PRINT-NEXT:; Array texture f32 buf
T7 t4,space3 100
+; PRINT-NEXT:; Name Type Format Dim
ID HLSL Bind Count
+; PRINT-NEXT:; ------------------------------ ---------- ------- -----------
------- -------------- ---------
+; PRINT-NEXT:; Zero texture f16 buf
T0 t0 1
+; PRINT-NEXT:; One texture f32 buf
T1 t1 1
+; PRINT-NEXT:; Two texture f64 buf
T2 t2 1
+; PRINT-NEXT:; Three texture i32 buf
T3 t3 1
+; PRINT-NEXT:; Four texture byte r/o
T4 t5 1
+; PRINT-NEXT:; Five texture struct r/o
T5 t6 1
+; PRINT-NEXT:; Six texture u64 buf
T6 t10,space2 1
+; PRINT-NEXT:; Array texture f32 buf
T7 t4,space3 100
; PRINT-NEXT:; Array2 texture f64 buf
T8 t2,space4 unbounded
-; PRINT-NEXT:; Seven texture u64 buf
T9 t20,space5 1
+; PRINT-NEXT:; Seven texture u64 buf
T9 t20,space5 1
;
define void @test() #0 {
>From 99957a777f71f9aafb8d9fa1d7e2b73c20425a83 Mon Sep 17 00:00:00 2001
From: Helena Kotas <heko...@microsoft.com>
Date: Wed, 6 Aug 2025 22:52:29 -0700
Subject: [PATCH 3/3] add test
---
llvm/unittests/Frontend/HLSLBindingTest.cpp | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/llvm/unittests/Frontend/HLSLBindingTest.cpp
b/llvm/unittests/Frontend/HLSLBindingTest.cpp
index ca2f7b55dd613..87106c29fbf12 100644
--- a/llvm/unittests/Frontend/HLSLBindingTest.cpp
+++ b/llvm/unittests/Frontend/HLSLBindingTest.cpp
@@ -273,3 +273,21 @@ TEST(HLSLBindingTest, TestFindAvailable) {
// In an empty space we find the slot at the beginning.
EXPECT_THAT(V, HasSpecificValue(0u));
}
+
+// Test that add duplicate bindings are correctly de-duplicated
+TEST(HLSLBindingTest, TestNoOverlapWithDuplicates) {
+ hlsl::BindingInfoBuilder Builder;
+
+ // We add the same binding three times, and just use `nullptr` for the cookie
+ // so that they should all be uniqued away.
+ Builder.trackBinding(ResourceClass::SRV, /*Space=*/0, /*LowerBound=*/5,
+ /*UpperBound=*/5, /*Cookie=*/nullptr);
+ Builder.trackBinding(ResourceClass::SRV, /*Space=*/0, /*LowerBound=*/5,
+ /*UpperBound=*/5, /*Cookie=*/nullptr);
+ Builder.trackBinding(ResourceClass::SRV, /*Space=*/0, /*LowerBound=*/5,
+ /*UpperBound=*/5, /*Cookie=*/nullptr);
+ bool HasOverlap;
+ hlsl::BindingInfo Info = Builder.calculateBindingInfo(HasOverlap);
+
+ EXPECT_FALSE(HasOverlap);
+}
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