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// RUN: %clang_cc1 -std=hlsl2021 -finclude-default-header -x hlsl -triple \
// RUN: spirv-pc-vulkan-library %s -emit-llvm -disable-llvm-passes -o - | FileCheck %s
bool cond();
void foo();
void test1() {
while (cond()) {
}
}
// CHECK-LABEL: define hidden spir_func void @_Z5test1v()
// CHECK-SAME: [[A0:#[0-9]+]] {
// CHECK: entry:
// CHECK: [[T0:%[0-9]+]] = call token @llvm.experimental.convergence.entry()
// CHECK: while.cond:
// CHECK: [[T1:%[0-9]+]] = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token [[T0]]) ]
// CHECK: call spir_func noundef i1 @_Z4condv() [[A3:#[0-9]+]] [ "convergencectrl"(token [[T1]]) ]
void test2() {
while (cond()) {
foo();
}
}
// CHECK-LABEL: define hidden spir_func void @_Z5test2v()
// CHECK-SAME: [[A0]] {
// CHECK: entry:
// CHECK: [[T0:%[0-9]+]] = call token @llvm.experimental.convergence.entry()
// CHECK: while.cond:
// CHECK: [[T1:%[0-9]+]] = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token [[T0]]) ]
// CHECK: call spir_func noundef i1 @_Z4condv() [[A3]] [ "convergencectrl"(token [[T1]]) ]
// CHECK: while.body:
// CHECK: call spir_func void @_Z3foov() [[A3]] [ "convergencectrl"(token [[T1]]) ]
void test3() {
while (cond()) {
if (cond())
break;
foo();
}
}
// CHECK-LABEL: define hidden spir_func void @_Z5test3v()
// CHECK-SAME: [[A0]] {
// CHECK: entry:
// CHECK: [[T0:%[0-9]+]] = call token @llvm.experimental.convergence.entry()
// CHECK: while.cond:
// CHECK: [[T1:%[0-9]+]] = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token [[T0]]) ]
// CHECK: call spir_func noundef i1 @_Z4condv() [[A3]] [ "convergencectrl"(token [[T1]]) ]
// CHECK: if.then:
// CHECK: br label %while.end
// CHECK: if.end:
// CHECK: call spir_func void @_Z3foov() [[A3]] [ "convergencectrl"(token [[T1]]) ]
// CHECK: br label %while.cond
void test4() {
while (cond()) {
if (cond()) {
foo();
break;
}
}
}
// CHECK-LABEL: define hidden spir_func void @_Z5test4v()
// CHECK-SAME: [[A0]] {
// CHECK: entry:
// CHECK: [[T0:%[0-9]+]] = call token @llvm.experimental.convergence.entry()
// CHECK: while.cond:
// CHECK: [[T1:%[0-9]+]] = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token [[T0]]) ]
// CHECK: call spir_func noundef i1 @_Z4condv() [[A3]] [ "convergencectrl"(token [[T1]]) ]
// CHECK: if.then:
// CHECK: call spir_func void @_Z3foov() [[A3]] [ "convergencectrl"(token [[T1]]) ]
// CHECK: br label %while.end
// CHECK: if.end:
// CHECK: br label %while.cond
void test5() {
while (cond()) {
while (cond()) {
if (cond()) {
foo();
break;
}
}
}
}
// CHECK-LABEL: define hidden spir_func void @_Z5test5v()
// CHECK-SAME: [[A0]] {
// CHECK: entry:
// CHECK: [[T0:%[0-9]+]] = call token @llvm.experimental.convergence.entry()
// CHECK: while.cond:
// CHECK: [[T1:%[0-9]+]] = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token [[T0]]) ]
// CHECK: call spir_func noundef i1 @_Z4condv() [[A3]] [ "convergencectrl"(token [[T1]]) ]
// CHECK: while.cond2:
// CHECK: [[T2:%[0-9]+]] = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token [[T1]]) ]
// CHECK: call spir_func noundef i1 @_Z4condv() [[A3]] [ "convergencectrl"(token [[T2]]) ]
// CHECK: if.then:
// CHECK: call spir_func void @_Z3foov() [[A3]] [ "convergencectrl"(token [[T2]]) ]
// CHECK: br label %while.end
void test6() {
while (cond()) {
while (cond()) {
}
if (cond()) {
foo();
break;
}
}
}
// CHECK-LABEL: define hidden spir_func void @_Z5test6v()
// CHECK-SAME: [[A0]] {
// CHECK: entry:
// CHECK: [[T0:%[0-9]+]] = call token @llvm.experimental.convergence.entry()
// CHECK: while.cond:
// CHECK: [[T1:%[0-9]+]] = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token [[T0]]) ]
// CHECK: call spir_func noundef i1 @_Z4condv() [[A3]] [ "convergencectrl"(token [[T1]]) ]
// CHECK: while.cond2:
// CHECK: [[T2:%[0-9]+]] = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token [[T1]]) ]
// CHECK: call spir_func noundef i1 @_Z4condv() [[A3]] [ "convergencectrl"(token [[T2]]) ]
// CHECK: if.then:
// CHECK: call spir_func void @_Z3foov() [[A3]] [ "convergencectrl"(token [[T1]]) ]
// CHECK: br label %while.end
// CHECK-DAG: attributes [[A0]] = { {{.*}}convergent{{.*}} }
// CHECK-DAG: attributes [[A3]] = { {{.*}}convergent{{.*}} }
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