llvm-project/clang/test/CodeGenHLSL/HLSLControlFlowHint.hlsl
joaosaffran 380bb51b70
[HLSL] Adding Flatten and Branch if attributes with test fixes (#122157)
- Adding the changes from PRs: 
  - #116331 
  - #121852 
- Fixes test `tools/dxil-dis/debug-info.ll`
- Address some missed comments in the previous PR

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Co-authored-by: joaosaffran <joao.saffran@microsoft.com>
2025-01-13 10:31:25 -08:00

49 lines
1.5 KiB
HLSL

// RUN: %clang_cc1 -finclude-default-header -x hlsl -triple dxil-pc-shadermodel6.3-library %s -fnative-half-type -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 -finclude-default-header -x hlsl -triple spirv-vulkan-library %s -fnative-half-type -emit-llvm -o - | FileCheck %s
// CHECK: define {{.*}} i32 {{.*}}test_branch{{.*}}(i32 {{.*}} [[VALD:%.*]])
// CHECK: [[PARAM:%.*]] = load i32, ptr [[VALD]].addr, align 4
// CHECK: [[CMP:%.*]] = icmp sgt i32 [[PARAM]], 0
// CHECK: br i1 [[CMP]], label %if.then, label %if.else, !hlsl.controlflow.hint [[HINT_BRANCH:![0-9]+]]
export int test_branch(int X){
int resp;
[branch] if (X > 0) {
resp = -X;
} else {
resp = X * 2;
}
return resp;
}
// CHECK: define {{.*}} i32 {{.*}}test_flatten{{.*}}(i32 {{.*}} [[VALD:%.*]])
// CHECK: [[PARAM:%.*]] = load i32, ptr [[VALD]].addr, align 4
// CHECK: [[CMP:%.*]] = icmp sgt i32 [[PARAM]], 0
// CHECK: br i1 [[CMP]], label %if.then, label %if.else, !hlsl.controlflow.hint [[HINT_FLATTEN:![0-9]+]]
export int test_flatten(int X){
int resp;
[flatten] if (X > 0) {
resp = -X;
} else {
resp = X * 2;
}
return resp;
}
// CHECK: define {{.*}} i32 {{.*}}test_no_attr{{.*}}(i32 {{.*}} [[VALD:%.*]])
// CHECK-NOT: !hlsl.controlflow.hint
export int test_no_attr(int X){
int resp;
if (X > 0) {
resp = -X;
} else {
resp = X * 2;
}
return resp;
}
//CHECK: [[HINT_BRANCH]] = !{!"hlsl.controlflow.hint", i32 1}
//CHECK: [[HINT_FLATTEN]] = !{!"hlsl.controlflow.hint", i32 2}