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TheRock/compiler/amd-llvm/clang/test/AST/HLSL/HLSLControlFlowHint.hlsl
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

103 lines
2.0 KiB
HLSL

// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-compute -ast-dump %s | FileCheck %s
// CHECK: FunctionDecl {{.*}} used branch 'int (int)'
// CHECK: AttributedStmt
// CHECK-NEXT: HLSLControlFlowHintAttr {{.*}} branch
export int branch(int X){
int resp;
[branch] if (X > 0) {
resp = -X;
} else {
resp = X * 2;
}
return resp;
}
// CHECK: FunctionDecl {{.*}} used flatten 'int (int)'
// CHECK: AttributedStmt
// CHECK-NEXT: HLSLControlFlowHintAttr {{.*}} flatten
export int flatten(int X){
int resp;
[flatten] if (X > 0) {
resp = -X;
} else {
resp = X * 2;
}
return resp;
}
// CHECK: FunctionDecl {{.*}} used no_attr 'int (int)'
// CHECK-NOT: AttributedStmt
// CHECK-NOT: HLSLControlFlowHintAttr
export int no_attr(int X){
int resp;
if (X > 0) {
resp = -X;
} else {
resp = X * 2;
}
return resp;
}
// CHECK: FunctionDecl {{.*}} used flatten_switch 'int (int)'
// CHECK: AttributedStmt
// CHECK-NEXT: HLSLControlFlowHintAttr {{.*}} flatten
export int flatten_switch(int X){
int resp;
[flatten]
switch (X) {
case 0:
resp = -X;
break;
case 1:
resp = X+X;
break;
case 2:
resp = X * X; break;
}
return resp;
}
// CHECK: FunctionDecl {{.*}} used branch_switch 'int (int)'
// CHECK: AttributedStmt
// CHECK-NEXT: HLSLControlFlowHintAttr {{.*}} branch
export int branch_switch(int X){
int resp;
[branch]
switch (X) {
case 0:
resp = -X;
break;
case 1:
resp = X+X;
break;
case 2:
resp = X * X; break;
}
return resp;
}
// CHECK: FunctionDecl {{.*}} used no_attr_switch 'int (int)'
// CHECK-NOT: AttributedStmt
// CHECK-NOT: HLSLControlFlowHintAttr
export int no_attr_switch(int X){
int resp;
switch (X) {
case 0:
resp = -X;
break;
case 1:
resp = X+X;
break;
case 2:
resp = X * X; break;
}
return resp;
}