110 lines
4.2 KiB
C
110 lines
4.2 KiB
C
// RUN: %clang_cc1 -triple x86_64-gnu-linux -emit-llvm %s -o - | FileCheck %s
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#define __maybe_undef __attribute__((maybe_undef))
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// CHECK: define{{.*}} void @t1(i32 noundef [[TMP1:%.*]], i32 noundef [[TMP2:%.*]], i32 noundef [[TMP3:%.*]])
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[TMP4:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[TMP5:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[TMP6:%.*]] = alloca i32, align 4
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// CHECK-NEXT: store i32 [[TMP1:%.*]], ptr [[TMP4:%.*]], align 4
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// CHECK-NEXT: store i32 [[TMP2:%.*]], ptr [[TMP5:%.*]], align 4
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// CHECK-NEXT: store i32 [[TMP3:%.*]], ptr [[TMP6:%.*]], align 4
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// CHECK-NEXT: ret void
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// CHECK: define{{.*}} void @t2(i32 noundef [[TMP1:%.*]], i32 noundef [[TMP2:%.*]], i32 noundef [[TMP3:%.*]])
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[TMP4:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[TMP5:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[TMP6:%.*]] = alloca i32, align 4
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// CHECK-NEXT: store i32 [[TMP1:%.*]], ptr [[TMP4:%.*]], align 4
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// CHECK-NEXT: store i32 [[TMP2:%.*]], ptr [[TMP5:%.*]], align 4
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// CHECK-NEXT: store i32 [[TMP3:%.*]], ptr [[TMP6:%.*]], align 4
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// CHECK-NEXT: [[TMP7:%.*]] = load i32, ptr [[TMP4:%.*]], align 4
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// CHECK-NEXT: [[TMP8:%.*]] = load i32, ptr [[TMP5:%.*]], align 4
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// CHECK-NEXT: [[TMP9:%.*]] = load i32, ptr [[TMP6:%.*]], align 4
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// CHECK-NEXT: [[TMP10:%.*]] = freeze i32 [[TMP8:%.*]]
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// CHECK-NEXT: call void @t1(i32 noundef [[TMP7:%.*]], i32 noundef [[TMP10:%.*]], i32 noundef [[TMP9:%.*]])
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// CHECK-NEXT: ret void
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void t1(int param1, int __maybe_undef param2, int param3) {}
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void t2(int param1, int param2, int param3) {
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t1(param1, param2, param3);
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}
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// CHECK: define{{.*}} void @TestVariadicFunction(i32 noundef [[TMP0:%.*]], ...)
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[TMP1:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[TMP2:%.*]] = alloca i32, align 4
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// CHECK-NEXT: store i32 [[TMP0:%.*]], ptr [[TMP1:%.*]], align 4
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// CHECK-NEXT: [[TMP3:%.*]] = load i32, ptr [[TMP1:%.*]], align 4
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// CHECK-NEXT: [[TMP4:%.*]] = load i32, ptr [[TMP2:%.*]], align 4
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// CHECK-NEXT: [[TMP5:%.*]] = load i32, ptr [[TMP2:%.*]], align 4
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// CHECK-NEXT: [[TMP5:%.*]] = freeze i32 [[TMP2:%.*]]
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// CHECK-NEXT: call void (i32, ...) @VariadicFunction(i32 noundef [[TMP6:%.*]], i32 noundef [[TMP4:%.*]], i32 noundef [[TMP5:%.*]])
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// CHECK-NEXT: ret void
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// CHECK: declare{{.*}} void @VariadicFunction(i32 noundef, ...)
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void VariadicFunction(int __maybe_undef x, ...);
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void TestVariadicFunction(int x, ...) {
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int Var;
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return VariadicFunction(x, Var, Var);
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}
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// CHECK: define{{.*}} void @other()
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[TMP1:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr [[TMP1:%.*]], align 4
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// CHECK-NEXT: call void @func(i32 noundef [[TMP2:%.*]])
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// CHECK-NEXT: [[TMP3:%.*]] = load i32, ptr [[TMP1:%.*]], align 4
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// CHECK-NEXT: [[TMP4:%.*]] = freeze i32 [[TMP3:%.*]]
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// CHECK-NEXT: call void @func1(i32 noundef [[TMP4:%.*]])
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// CHECK-NEXT: ret void
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// CHECK: define{{.*}} void @func(i32 noundef [[TMP1:%.*]])
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[TMP2:%.*]] = alloca i32, align 4
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// CHECK-NEXT: store i32 [[TMP1:%.*]], ptr [[TMP2:%.*]], align 4
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// CHECK-NEXT: ret void
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// CHECK: define{{.*}} void @func1(i32 noundef [[TMP1:%.*]])
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[TMP2:%.*]] = alloca i32, align 4
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// CHECK-NEXT: store i32 [[TMP1:%.*]], ptr [[TMP2:%.*]], align 4
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// CHECK-NEXT: ret void
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void func(int param);
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void func1(int __maybe_undef param);
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void other() {
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int Var;
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func(Var);
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func1(Var);
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}
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void func(__maybe_undef int param) {}
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void func1(int param) {}
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// CHECK: define{{.*}} void @foo(i32 noundef [[TMP1:%.*]])
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[TMP2:%.*]] = alloca i32, align 4
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// CHECK-NEXT: store i32 [[TMP1:%.*]], ptr [[TMP2:%.*]], align 4
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// CHECK-NEXT: ret void
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// CHECK: define{{.*}} void @bar()
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[TMP1:%.*]] = alloca i32, align 4
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// CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr [[TMP1:%.*]], align 4
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// CHECK-NEXT: call void @foo(i32 noundef [[TMP2:%.*]])
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// CHECK-NEXT: ret void
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void foo(__maybe_undef int param);
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void foo(int param) {}
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void bar() {
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int Var;
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foo(Var);
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}
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