forked from OSchip/llvm-project
119 lines
3.7 KiB
Common Lisp
119 lines
3.7 KiB
Common Lisp
// RUN: %clang_cc1 -triple spir-unknown-unknown -emit-llvm %s -o - | opt -instnamer -S | FileCheck %s
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void convfun(void) __attribute__((convergent));
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void non_convfun(void);
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void nodupfun(void) __attribute__((noduplicate));
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void f(void);
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void g(void);
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// Test two if's are merged and non_convfun duplicated.
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// The LLVM IR is equivalent to:
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// if (a) {
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// f();
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// non_convfun();
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// g();
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// } else {
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// non_convfun();
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// }
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//
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// CHECK: define spir_func void @test_merge_if(i32 %[[a:.+]])
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// CHECK: %[[tobool:.+]] = icmp eq i32 %[[a]], 0
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// CHECK: br i1 %[[tobool]], label %[[if_end3_critedge:.+]], label %[[if_then:.+]]
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// CHECK: [[if_then]]:
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// CHECK: tail call spir_func void @f()
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// CHECK: tail call spir_func void @non_convfun()
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// CHECK: tail call spir_func void @g()
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// CHECK: br label %[[if_end3:.+]]
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// CHECK: [[if_end3_critedge]]:
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// CHECK: tail call spir_func void @non_convfun()
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// CHECK: br label %[[if_end3]]
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// CHECK: [[if_end3]]:
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// CHECK-LABEL: ret void
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void test_merge_if(int a) {
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if (a) {
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f();
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}
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non_convfun();
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if (a) {
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g();
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}
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}
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// CHECK-DAG: declare spir_func void @f()
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// CHECK-DAG: declare spir_func void @non_convfun()
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// CHECK-DAG: declare spir_func void @g()
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// Test two if's are not merged.
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// CHECK: define spir_func void @test_no_merge_if(i32 %[[a:.+]])
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// CHECK: %[[tobool:.+]] = icmp eq i32 %[[a]], 0
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// CHECK: br i1 %[[tobool]], label %[[if_end:.+]], label %[[if_then:.+]]
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// CHECK: [[if_then]]:
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// CHECK: tail call spir_func void @f()
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// CHECK-NOT: call spir_func void @convfun()
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// CHECK-NOT: call spir_func void @g()
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// CHECK: br label %[[if_end]]
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// CHECK: [[if_end]]:
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// CHECK: %[[tobool_pr:.+]] = phi i1 [ true, %[[if_then]] ], [ false, %{{.+}} ]
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// CHECK: tail call spir_func void @convfun() #[[attr5:.+]]
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// CHECK: br i1 %[[tobool_pr]], label %[[if_then2:.+]], label %[[if_end3:.+]]
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// CHECK: [[if_then2]]:
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// CHECK: tail call spir_func void @g()
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// CHECK: br label %[[if_end3:.+]]
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// CHECK: [[if_end3]]:
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// CHECK-LABEL: ret void
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void test_no_merge_if(int a) {
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if (a) {
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f();
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}
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convfun();
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if(a) {
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g();
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}
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}
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// CHECK: declare spir_func void @convfun(){{[^#]*}} #[[attr2:[0-9]+]]
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// Test loop is unrolled for convergent function.
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// CHECK-LABEL: define spir_func void @test_unroll()
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// CHECK: tail call spir_func void @convfun() #[[attr5:[0-9]+]]
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// CHECK: tail call spir_func void @convfun() #[[attr5]]
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// CHECK: tail call spir_func void @convfun() #[[attr5]]
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// CHECK: tail call spir_func void @convfun() #[[attr5]]
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// CHECK: tail call spir_func void @convfun() #[[attr5]]
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// CHECK: tail call spir_func void @convfun() #[[attr5]]
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// CHECK: tail call spir_func void @convfun() #[[attr5]]
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// CHECK: tail call spir_func void @convfun() #[[attr5]]
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// CHECK: tail call spir_func void @convfun() #[[attr5]]
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// CHECK: tail call spir_func void @convfun() #[[attr5]]
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// CHECK-LABEL: ret void
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void test_unroll() {
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for (int i = 0; i < 10; i++)
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convfun();
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}
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// Test loop is not unrolled for noduplicate function.
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// CHECK-LABEL: define spir_func void @test_not_unroll()
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// CHECK: br label %[[for_body:.+]]
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// CHECK: [[for_cond_cleanup:.+]]:
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// CHECK: ret void
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// CHECK: [[for_body]]:
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// CHECK: tail call spir_func void @nodupfun() #[[attr6:[0-9]+]]
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// CHECK-NOT: call spir_func void @nodupfun()
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// CHECK: br i1 %{{.+}}, label %[[for_body]], label %[[for_cond_cleanup]]
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void test_not_unroll() {
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for (int i = 0; i < 10; i++)
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nodupfun();
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}
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// CHECK: declare spir_func void @nodupfun(){{[^#]*}} #[[attr3:[0-9]+]]
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// CHECK-DAG: attributes #[[attr2]] = { {{[^}]*}}convergent{{[^}]*}} }
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// CHECK-DAG: attributes #[[attr3]] = { {{[^}]*}}noduplicate{{[^}]*}} }
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// CHECK-DAG: attributes #[[attr5]] = { {{[^}]*}}convergent{{[^}]*}} }
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// CHECK-DAG: attributes #[[attr6]] = { {{[^}]*}}noduplicate{{[^}]*}} }
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