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[DirectX] Set function-level flag Int64Ops in DXIL Shader Flags Analysis #129089

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Merged
merged 7 commits into from
Mar 18, 2025
Merged

[DirectX] Set function-level flag Int64Ops in DXIL Shader Flags Analysis #129089

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609a82a
Set function-level flag Int64Ops in DXIL Shader Flags Analysis
Icohedron Feb 27, 2025
7edbef5
Apply clang-format
Icohedron Feb 27, 2025
4f09a48
Use isIntegerTy(64) to check for 64-bit integer type
Icohedron Feb 28, 2025
0dafdf6
Merge remote-tracking branch 'upstream/main' into shader-flag-int64ops
Icohedron Mar 4, 2025
77379d6
Ignore i64 ConstantInt indices from ExtractElement and InsertElement …
Icohedron Mar 4, 2025
5f084f0
Revert "Ignore i64 ConstantInt indices from ExtractElement and Insert…
Icohedron Mar 17, 2025
a338575
Merge remote-tracking branch 'upstream/main' into shader-flag-int64ops
Icohedron Mar 17, 2025
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14 changes: 14 additions & 0 deletions llvm/lib/Target/DirectX/DXILShaderFlags.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -99,6 +99,20 @@ void ModuleShaderFlags::updateFunctionFlags(ComputedShaderFlags &CSF,
}
}

if (!CSF.Int64Ops)
CSF.Int64Ops =
I.getType()->isIntegerTy() && I.getType()->getScalarSizeInBits() == 64;

if (!CSF.Int64Ops) {
for (const Value *Op : I.operands()) {
if (Op->getType()->isIntegerTy() &&
Op->getType()->getScalarSizeInBits() == 64) {
CSF.Int64Ops = true;
break;
}
}
}

if (auto *II = dyn_cast<IntrinsicInst>(&I)) {
switch (II->getIntrinsicID()) {
default:
Expand Down
11 changes: 6 additions & 5 deletions llvm/test/CodeGen/DirectX/ShaderFlags/double-extensions.ll
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Original file line number Diff line number Diff line change
Expand Up @@ -3,16 +3,17 @@
target triple = "dxil-pc-shadermodel6.7-library"

; CHECK: ; Combined Shader Flags for Module
; CHECK-NEXT: ; Shader Flags Value: 0x00000044
; CHECK-NEXT: ; Shader Flags Value: 0x00100044

; CHECK: ; Note: shader requires additional functionality:
; CHECK-NEXT: ; Double-precision floating point
; CHECK-NEXT: ; Double-precision extensions for 11.1
; CHECK-NEXT: ; 64-Bit integer
; CHECK-NEXT: ; Note: extra DXIL module flags:
; CHECK-NEXT: ;
; CHECK-NEXT: ; Shader Flags for Module Functions

;CHECK: ; Function top_level : 0x00000044
;CHECK: ; Function top_level : 0x00100044
define double @top_level() #0 {
%r = call double @test_uitofp_i64(i64 5)
ret double %r
Expand All @@ -25,13 +26,13 @@ define double @test_fdiv_double(double %a, double %b) #0 {
ret double %res
}

; CHECK: ; Function test_uitofp_i64 : 0x00000044
; CHECK: ; Function test_uitofp_i64 : 0x00100044
define double @test_uitofp_i64(i64 %a) #0 {
%r = uitofp i64 %a to double
ret double %r
}

; CHECK: ; Function test_sitofp_i64 : 0x00000044
; CHECK: ; Function test_sitofp_i64 : 0x00100044
define double @test_sitofp_i64(i64 %a) #0 {
%r = sitofp i64 %a to double
ret double %r
Expand All @@ -43,7 +44,7 @@ define i32 @test_fptoui_i32(double %a) #0 {
ret i32 %r
}

; CHECK: ; Function test_fptosi_i64 : 0x00000044
; CHECK: ; Function test_fptosi_i64 : 0x00100044
define i64 @test_fptosi_i64(double %a) #0 {
%r = fptosi double %a to i64
ret i64 %r
Expand Down
30 changes: 30 additions & 0 deletions llvm/test/CodeGen/DirectX/ShaderFlags/int64ops.ll
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Original file line number Diff line number Diff line change
@@ -0,0 +1,30 @@
; RUN: opt -S --passes="print-dx-shader-flags" 2>&1 %s | FileCheck %s
; RUN: llc %s --filetype=obj -o - | obj2yaml | FileCheck %s --check-prefix=DXC

target triple = "dxil-pc-shadermodel6.7-library"

;CHECK: ; Combined Shader Flags for Module
;CHECK-NEXT: ; Shader Flags Value: 0x00100000
;CHECK-NEXT: ;
;CHECK-NEXT: ; Note: shader requires additional functionality:
;CHECK-NEXT: ; 64-Bit integer
;CHECK-NEXT: ; Note: extra DXIL module flags:
;CHECK-NEXT: ;
;CHECK-NEXT: ; Shader Flags for Module Functions
;CHECK-NEXT: ; Function add : 0x00100000

define i64 @add(i64 %a, i64 %b) #0 {
%sum = add i64 %a, %b
ret i64 %sum
}

attributes #0 = { convergent norecurse nounwind "hlsl.export"}

; DXC: - Name: SFI0
; DXC-NEXT: Size: 8
; DXC-NEXT: Flags:
; DXC-NOT: {{[A-Za-z]+: +true}}
; DXC: Int64Ops: true
; DXC-NOT: {{[A-Za-z]+: +true}}
; DXC: NextUnusedBit: false
; DXC: ...
11 changes: 6 additions & 5 deletions llvm/test/CodeGen/DirectX/ShaderFlags/propagate-function-flags-test.ll
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Original file line number Diff line number Diff line change
Expand Up @@ -3,11 +3,12 @@
target triple = "dxil-pc-shadermodel6.7-library"

; CHECK: ; Combined Shader Flags for Module
; CHECK-NEXT: ; Shader Flags Value: 0x00000044
; CHECK-NEXT: ; Shader Flags Value: 0x00100044
; CHECK-NEXT: ;
; CHECK-NEXT: ; Note: shader requires additional functionality:
; CHECK-NEXT: ; Double-precision floating point
; CHECK-NEXT: ; Double-precision extensions for 11.1
; CHECK-NEXT: ; 64-Bit integer
; CHECK-NEXT: ; Note: extra DXIL module flags:
; CHECK-NEXT: ;
; CHECK-NEXT: ; Shader Flags for Module Functions
Expand Down Expand Up @@ -55,13 +56,13 @@ define double @call_get_uitofp_flag(i32 noundef %0) local_unnamed_addr #0 {
ret double %2
}

; CHECK: ; Function call_get_fptoui_flag : 0x00000044
; CHECK: ; Function call_get_fptoui_flag : 0x00100044
define double @call_get_fptoui_flag(double noundef %0) local_unnamed_addr #0 {
%2 = tail call double @get_fptoui_flag(double noundef %0)
ret double %2
}

; CHECK: ; Function get_fptoui_flag : 0x00000044
; CHECK: ; Function get_fptoui_flag : 0x00100044
define double @get_fptoui_flag(double noundef %0) local_unnamed_addr #0 {
%2 = fcmp ugt double %0, 5.000000e+00
br i1 %2, label %6, label %3
Expand All @@ -81,7 +82,7 @@ define double @get_fptoui_flag(double noundef %0) local_unnamed_addr #0 {
ret double %10
}

; CHECK: ; Function get_sitofp_uitofp_flag : 0x00000044
; CHECK: ; Function get_sitofp_uitofp_flag : 0x00100044
define double @get_sitofp_uitofp_flag(i64 noundef %0) local_unnamed_addr #0 {
%2 = icmp ult i64 %0, 6
br i1 %2, label %3, label %7
Expand Down Expand Up @@ -154,7 +155,7 @@ define double @get_all_doubles_flags(i32 noundef %0) local_unnamed_addr #0 {
ret double %4
}

; CHECK: ; Function main : 0x00000044
; CHECK: ; Function main : 0x00100044
define i32 @main() local_unnamed_addr #0 {
%1 = tail call double @get_fptoui_flag(double noundef 1.000000e+00)
%2 = tail call double @get_sitofp_fdiv_flag(i32 noundef 4)
Expand Down
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