derek.holloway
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71 lines
2.7 KiB
C
71 lines
2.7 KiB
C
// RUN: %clang_cc1 -O1 -triple x86_64-unknown-linux-gnu -fclangir -DBITCODE -emit-llvm-bc -o %t.bc %s
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// RUN: %clang_cc1 -O1 -triple x86_64-unknown-linux-gnu -fclangir -DBITCODE2 -emit-llvm-bc -o %t-2.bc %s
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// RUN: %clang_cc1 -O1 -triple x86_64-unknown-linux-gnu -fclangir -mlink-bitcode-file %t.bc \
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// RUN: -emit-llvm -o - %s | FileCheck -check-prefix=CHECK-BC %s
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// RUN: %clang_cc1 -O1 -triple x86_64-unknown-linux-gnu -fclangir -mlink-builtin-bitcode %t.bc \
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// RUN: -emit-llvm -o - %s | FileCheck -check-prefix=CHECK-BUILTIN-BC %s
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// RUN: %clang_cc1 -O1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm -o - \
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// RUN: -mlink-bitcode-file %t.bc -mlink-bitcode-file %t-2.bc %s \
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// RUN: | FileCheck -check-prefix=CHECK-BC -check-prefix=CHECK-BC2 %s
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// RUN: not %clang_cc1 -O1 -triple x86_64-unknown-linux-gnu -fclangir \
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// RUN: -mlink-bitcode-file no-such-file.bc -emit-llvm -o - %s 2>&1 \
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// RUN: | FileCheck -check-prefix=CHECK-NO-FILE %s
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//
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// -mlink-builtin-bitcode propagates the host TU's default function-definition
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// attributes onto linked-in functions. Linking at -O0 keeps f from being
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// inlined into g so the propagated attribute group is observable.
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -target-cpu skylake -fclangir \
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// RUN: -mlink-builtin-bitcode %t.bc -emit-llvm -o - %s \
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// RUN: | FileCheck -check-prefix=CHECK-PROPAGATE %s
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//
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// -mlink-bitcode-file does NOT propagate (PropagateAttrs=false).
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// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -target-cpu skylake -fclangir \
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// RUN: -mlink-bitcode-file %t.bc -emit-llvm -o - %s \
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// RUN: | FileCheck -check-prefix=CHECK-NO-PROPAGATE %s
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int f(void);
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#ifdef BITCODE
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extern int f2(void);
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volatile int gvar = 7;
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int f(void) {
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f2();
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return 42;
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}
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#elif defined(BITCODE2)
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int f2(void) { return 43; }
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#else
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extern volatile int gvar;
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// -mlink-bitcode-file leaves linked symbols with external linkage.
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// CHECK-BC: @gvar = global i32 7
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// -mlink-builtin-bitcode internalizes linked symbols not referenced as roots.
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// CHECK-BUILTIN-BC: @gvar = internal global i32 7
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// CHECK-BC-LABEL: define{{.*}} i32 @g
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// CHECK-BC: ret i32 42
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// CHECK-BUILTIN-BC-LABEL: define{{.*}} i32 @g
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// CHECK-BUILTIN-BC: ret i32 42
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int g(void) {
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gvar = 1;
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return f();
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}
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// CHECK-BC-LABEL: define{{.*}} i32 @f
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// CHECK-BC2-LABEL: define{{.*}} i32 @f2
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// CHECK-PROPAGATE: define internal{{.*}} i32 @f(){{[^#]*}}#[[F_ATTRS:[0-9]+]]
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// CHECK-PROPAGATE: attributes #[[F_ATTRS]] = {{.*}}"target-cpu"="skylake"
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// CHECK-NO-PROPAGATE: define{{.*}} i32 @f(){{[^#]*}}#[[F_ATTRS:[0-9]+]]
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// CHECK-NO-PROPAGATE-NOT: attributes #[[F_ATTRS]] = {{.*}}"target-cpu"="skylake"
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#endif
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// CHECK-NO-FILE: fatal error: cannot open file 'no-such-file.bc'
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