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TheRock/compiler/amd-llvm/clang/test/CodeGen/attr-optnone.c
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derek.holloway 7502bf64a4
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2026-09-02 16:34:47 -07:00

43 lines
1.5 KiB
C

// RUN: %clang_cc1 -emit-llvm < %s > %t
// RUN: FileCheck %s --check-prefix=PRESENT < %t
// RUN: FileCheck %s --check-prefix=ABSENT < %t
// RUN: %clang_cc1 -emit-llvm -Os < %s > %t
// RUN: FileCheck %s --check-prefix=PRESENT < %t
// RUN: FileCheck %s --check-prefix=OPTSIZE < %t
// RUN: %clang_cc1 -emit-llvm -Oz < %s > %t
// RUN: FileCheck %s --check-prefix=PRESENT < %t
// RUN: FileCheck %s --check-prefix=MINSIZE < %t
__attribute__((always_inline))
int test2(void) { return 0; }
// OPTSIZE: @test2{{.*}}[[ATTR2:#[0-9]+]]
// MINSIZE: @test2{{.*}}[[ATTR2:#[0-9]+]]
__attribute__((optnone))
int test3(void) { return 0; }
// PRESENT-DAG: @test3{{.*}}[[ATTR3:#[0-9]+]]
__attribute__((optnone)) __attribute__((cold))
int test4(void) { return test2(); }
// PRESENT-DAG: @test4{{.*}}[[ATTR4:#[0-9]+]]
// Also check that test2 is inlined into test4 (always_inline still works).
// PRESENT-NOT: call i32 @test2
// Check for both noinline and optnone on each optnone function.
// PRESENT-DAG: attributes [[ATTR3]] = { {{.*}}noinline{{.*}}optnone{{.*}} }
// PRESENT-DAG: attributes [[ATTR4]] = { {{.*}}noinline{{.*}}optnone{{.*}} }
// Check that no 'optsize' or 'minsize' attributes appear.
// ABSENT-NOT: optsize
// ABSENT-NOT: minsize
// With -Os, check that 'optsize' appears only on test2.
// OPTSIZE-NOT: optsize
// OPTSIZE: attributes [[ATTR2]] = { {{.*}}optsize{{.*}} }
// OPTSIZE-NOT: optsize
// With -Oz, check that 'minsize' appears only on test2.
// MINSIZE-NOT: minsize
// MINSIZE: attributes [[ATTR2]] = { {{.*}}minsize{{.*}} }
// MINSIZE-NOT: minsize