Index: test/Transforms/NaCl/strip-attributes.ll |
diff --git a/test/Transforms/NaCl/strip-attributes.ll b/test/Transforms/NaCl/strip-attributes.ll |
new file mode 100644 |
index 0000000000000000000000000000000000000000..84eafa7ba82da6c14100f0f21f7f78645af5ddf8 |
--- /dev/null |
+++ b/test/Transforms/NaCl/strip-attributes.ll |
@@ -0,0 +1,137 @@ |
+; RUN: opt -S -nacl-strip-attributes %s 2>&1 | FileCheck %s |
+ |
+ |
+; Check that we emit a warning for some special meaning sections: |
+; CHECK: Warning: func_init_array will have its section (.init_array) stripped. |
+; CHECK-NOT: Warning: __rustc_debug_gdb_scripts_section__ will have its section |
+ |
+@var = unnamed_addr global i32 0 |
+; CHECK: @var = global i32 0 |
+ |
+@__rustc_debug_gdb_scripts_section__ = internal unnamed_addr constant [34 x i8] c"\01gdb_load_rust_pretty_printers.py\00", section ".debug_gdb_scripts", align 1 |
+; CHECK: @__rustc_debug_gdb_scripts_section__ = internal constant [34 x i8] c"\01gdb_load_rust_pretty_printers.py\00", align 1 |
+ |
+define void @func_section() section ".some_section" { |
+ ret void |
+} |
+; CHECK-LABEL: define void @func_section() { |
+ |
+define void @func_init_array() section ".init_array" { |
+ ret void |
+} |
+; CHECK-LABEL: define void @func_init_array() { |
+ |
+ |
+define fastcc void @func_attrs(i32 inreg, i32 zeroext) |
+ unnamed_addr noreturn nounwind readonly align 8 { |
+ ret void |
+} |
+; CHECK: define void @func_attrs(i32, i32) { |
+ |
+define hidden void @hidden_visibility() { |
+ ret void |
+} |
+; CHECK: define void @hidden_visibility() { |
+ |
+define protected void @protected_visibility() { |
+ ret void |
+} |
+; CHECK: define void @protected_visibility() { |
+ |
+ |
+define void @call_attrs() { |
+ call fastcc void @func_attrs(i32 inreg 10, i32 zeroext 20) noreturn nounwind readonly |
+ ret void |
+} |
+; CHECK: define void @call_attrs() |
+; CHECK: call void @func_attrs(i32 10, i32 20){{$}} |
+ |
+ |
+; We currently don't attempt to strip attributes from intrinsic |
+; declarations because the reader automatically inserts attributes |
+; based on built-in knowledge of intrinsics, so it is difficult to get |
+; rid of them here. |
+declare i8* @llvm.nacl.read.tp() |
+; CHECK: declare i8* @llvm.nacl.read.tp() #{{[0-9]+}} |
+ |
+define void @arithmetic_attrs() { |
+ %add = add nsw i32 1, 2 |
+ %shl = shl nuw i32 3, 4 |
+ %lshr = lshr exact i32 2, 1 |
+ ret void |
+} |
+; CHECK: define void @arithmetic_attrs() { |
+; CHECK-NEXT: %add = add i32 1, 2 |
+; CHECK-NEXT: %shl = shl i32 3, 4 |
+; CHECK-NEXT: %lshr = lshr i32 2, 1 |
+ |
+ |
+; Implicit default alignments are changed to explicit alignments. |
+define void @default_alignment_attrs(float %f, double %d) { |
+ load i8* null |
+ load i32* null |
+ load float* null |
+ load double* null |
+ |
+ store i8 100, i8* null |
+ store i32 100, i32* null |
+ store float %f, float* null |
+ store double %d, double* null |
+ ret void |
+} |
+; CHECK: define void @default_alignment_attrs |
+; CHECK-NEXT: load i8* null, align 1 |
+; CHECK-NEXT: load i32* null, align 1 |
+; CHECK-NEXT: load float* null, align 4 |
+; CHECK-NEXT: load double* null, align 8 |
+; CHECK-NEXT: store i8 100, i8* null, align 1 |
+; CHECK-NEXT: store i32 100, i32* null, align 1 |
+; CHECK-NEXT: store float %f, float* null, align 4 |
+; CHECK-NEXT: store double %d, double* null, align 8 |
+ |
+define void @reduce_alignment_assumptions() { |
+ load i32* null, align 4 |
+ load float* null, align 2 |
+ load float* null, align 4 |
+ load float* null, align 8 |
+ load double* null, align 2 |
+ load double* null, align 8 |
+ load double* null, align 16 |
+ |
+ ; Higher alignment assumptions must be retained for atomics. |
+ load atomic i32* null seq_cst, align 4 |
+ load atomic i32* null seq_cst, align 8 |
+ store atomic i32 100, i32* null seq_cst, align 4 |
+ store atomic i32 100, i32* null seq_cst, align 8 |
+ ret void |
+} |
+; CHECK: define void @reduce_alignment_assumptions |
+; CHECK-NEXT: load i32* null, align 1 |
+; CHECK-NEXT: load float* null, align 1 |
+; CHECK-NEXT: load float* null, align 4 |
+; CHECK-NEXT: load float* null, align 4 |
+; CHECK-NEXT: load double* null, align 1 |
+; CHECK-NEXT: load double* null, align 8 |
+; CHECK-NEXT: load double* null, align 8 |
+; CHECK-NEXT: load atomic i32* null seq_cst, align 4 |
+; CHECK-NEXT: load atomic i32* null seq_cst, align 4 |
+; CHECK-NEXT: store atomic i32 100, i32* null seq_cst, align 4 |
+; CHECK-NEXT: store atomic i32 100, i32* null seq_cst, align 4 |
+ |
+declare void @llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1) |
+declare void @llvm.memmove.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1) |
+declare void @llvm.memset.p0i8.i32(i8*, i8, i32, i32, i1) |
+ |
+define void @reduce_memcpy_alignment_assumptions(i8* %ptr) { |
+ call void @llvm.memcpy.p0i8.p0i8.i32(i8* %ptr, i8* %ptr, |
+ i32 20, i32 4, i1 false) |
+ call void @llvm.memmove.p0i8.p0i8.i32(i8* %ptr, i8* %ptr, |
+ i32 20, i32 4, i1 false) |
+ call void @llvm.memset.p0i8.i32(i8* %ptr, i8 99, |
+ i32 20, i32 4, i1 false) |
+ ret void |
+} |
+; CHECK: define void @reduce_memcpy_alignment_assumptions |
+; CHECK-NEXT: call void @llvm.memcpy.{{.*}} i32 20, i32 1, i1 false) |
+; CHECK-NEXT: call void @llvm.memmove.{{.*}} i32 20, i32 1, i1 false) |
+; CHECK-NEXT: call void @llvm.memset.{{.*}} i32 20, i32 1, i1 false) |