Index: test/Transforms/NaCl/expand-small-arguments.ll |
diff --git a/test/Transforms/NaCl/expand-small-arguments.ll b/test/Transforms/NaCl/expand-small-arguments.ll |
new file mode 100644 |
index 0000000000000000000000000000000000000000..227d57fffdadaf756acfb6d750bae16f352a63ec |
--- /dev/null |
+++ b/test/Transforms/NaCl/expand-small-arguments.ll |
@@ -0,0 +1,216 @@ |
+; RUN: opt %s -expand-small-arguments -S | FileCheck %s |
+ |
+@var = global i8 0 |
+ |
+ |
+define void @small_arg(i8 %val) { |
+ store i8 %val, i8* @var |
+ ret void |
+} |
+; CHECK: define void @small_arg(i32 %val) { |
+; CHECK-NEXT: %val.arg_trunc = trunc i32 %val to i8 |
+; CHECK-NEXT: store i8 %val.arg_trunc, i8* @var |
+ |
+ |
+define i8 @small_result() { |
+ %val = load i8* @var |
+ ret i8 %val |
+} |
+; CHECK: define i32 @small_result() { |
+; CHECK-NEXT: %val = load i8* @var |
+; CHECK-NEXT: %val.ret_ext = zext i8 %val to i32 |
+; CHECK-NEXT: ret i32 %val.ret_ext |
+ |
+define signext i8 @small_result_signext() { |
+ %val = load i8* @var |
+ ret i8 %val |
+} |
+; CHECK: define signext i32 @small_result_signext() { |
+; CHECK-NEXT: %val = load i8* @var |
+; CHECK-NEXT: %val.ret_ext = sext i8 %val to i32 |
+; CHECK-NEXT: ret i32 %val.ret_ext |
+ |
+ |
+define void @call_small_arg() { |
+ call void @small_arg(i8 100) |
+ ret void |
+} |
+; CHECK: define void @call_small_arg() { |
+; CHECK-NEXT: %arg_ext = zext i8 100 to i32 |
+; CHECK-NEXT: %.arg_cast = bitcast {{.*}} @small_arg |
+; CHECK-NEXT: call void %.arg_cast(i32 %arg_ext) |
+ |
+define void @call_small_arg_signext() { |
+ call void @small_arg(i8 signext 100) |
+ ret void |
+} |
+; CHECK: define void @call_small_arg_signext() { |
+; CHECK-NEXT: %arg_ext = sext i8 100 to i32 |
+; CHECK-NEXT: %.arg_cast = bitcast {{.*}} @small_arg |
+; CHECK-NEXT: call void %.arg_cast(i32 signext %arg_ext) |
+ |
+ |
+define void @call_small_result() { |
+ %r = call i8 @small_result() |
+ store i8 %r, i8* @var |
+ ret void |
+} |
+; CHECK: define void @call_small_result() { |
+; CHECK-NEXT: %r.arg_cast = bitcast {{.*}} @small_result |
+; CHECK-NEXT: %r = call i32 %r.arg_cast() |
+; CHECK-NEXT: %r.ret_trunc = trunc i32 %r to i8 |
+; CHECK-NEXT: store i8 %r.ret_trunc, i8* @var |
+ |
+ |
+; Check that various attributes are preserved. |
+define i1 @attributes(i8 %arg) nounwind { |
+ %r = tail call fastcc i1 @attributes(i8 %arg) nounwind |
+ ret i1 %r |
+} |
+; CHECK: define i32 @attributes(i32 %arg) [[NOUNWIND:#[0-9]+]] { |
+; CHECK: tail call fastcc i32 {{.*}} [[NOUNWIND]] |
+ |
+ |
+; These arguments and results should be left alone. |
+define i64 @larger_arguments(i32 %a, i64 %b, i8* %ptr, double %d) { |
+ %r = call i64 @larger_arguments(i32 %a, i64 %b, i8* %ptr, double %d) |
+ ret i64 %r |
+} |
+; CHECK: define i64 @larger_arguments(i32 %a, i64 %b, i8* %ptr, double %d) { |
+; CHECK-NEXT: %r = call i64 @larger_arguments(i32 %a, i64 %b, i8* %ptr, double %d) |
+; CHECK-NEXT: ret i64 %r |
+ |
+ |
+; Intrinsics must be left alone since the pass cannot change their types. |
+ |
+declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1) |
+; CHECK: declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1) |
+ |
+define void @intrinsic_call(i8* %ptr) { |
+ call void @llvm.memset.p0i8.i32(i8* %ptr, i8 99, i32 256, i32 1, i1 0) |
+ ret void |
+} |
+; CHECK: define void @intrinsic_call |
+; CHECK-NEXT: call void @llvm.memset.p0i8.i32(i8* %ptr, i8 99, |
+ |
+define void @invoking_small_arg(i8) { |
+ invoke void @small_arg(i8 %0) |
+ to label %cont unwind label %lpad |
+cont: |
+ ret void |
+lpad: |
+ %lp = landingpad { i8*, i32 } personality i8* null cleanup |
+ ret void |
+} |
+; CHECK-LABEL: define void @invoking_small_arg(i32) |
+; CHECK-NEXT: %.arg_trunc = trunc i32 %0 to i8 |
+; CHECK-NEXT: %arg_ext = zext i8 %.arg_trunc to i32 |
+; CHECK-NEXT: %.arg_cast = bitcast void (i8)* bitcast (void (i32)* @small_arg to void (i8)*) to void (i32)* |
+; CHECK-NEXT: invoke void %.arg_cast(i32 %arg_ext) |
+; CHECK-NEXT: to label %cont unwind label %lpad |
+ |
+; CHECK: cont: |
+; CHECK-NEXT: ret void |
+ |
+; CHECK: lpad: |
+; CHECK-NEXT: %lp = landingpad { i8*, i32 } personality i8* null |
+; CHECK-NEXT: cleanup |
+; CHECK-NEXT: ret void |
+ |
+define fastcc void @invoking_cc() { |
+ invoke fastcc void @invoking_cc() |
+ to label %cont unwind label %lpad |
+cont: |
+ ret void |
+lpad: |
+ %lp = landingpad { i8*, i32 } personality i8* null cleanup |
+ ret void |
+} |
+; CHECK-LABEL: define fastcc void @invoking_cc() |
+; CHECK-NEXT: invoke fastcc void @invoking_cc() |
+ |
+define void @invoking_attrs() noinline { |
+ invoke void @invoking_attrs() noinline |
+ to label %cont unwind label %lpad |
+cont: |
+ ret void |
+lpad: |
+ %lp = landingpad { i8*, i32 } personality i8* null cleanup |
+ ret void |
+} |
+; CHECK: define void @invoking_attrs() [[NOINLINE:#[0-9]+]] |
+; CHECK: invoke void @invoking_attrs() [[NOINLINE]] |
+ |
+define void @invoking_critical_edge() { |
+entry: |
+ %a = invoke i8 @small_result() |
+ to label %loop unwind label %lpad |
+loop: |
+ %b = phi i8 [ %a, %entry ], [ %c, %loop ] |
+ %c = add i8 1, %b |
+ %d = icmp eq i8 %c, 5 |
+ br i1 %d, label %exit, label %loop |
+ |
+exit: |
+ %aa = phi i8 [ 0, %lpad ], [ %c, %loop ] |
+ ret void |
+ |
+lpad: |
+ %lp = landingpad { i8*, i32 } personality i8* null cleanup |
+ br label %exit |
+} |
+; CHECK-LABEL: define void @invoking_critical_edge() |
+; CHECK: entry: |
+; CHECK-NEXT: %a.arg_cast = bitcast i8 ()* bitcast (i32 ()* @small_result to i8 ()*) to i32 ()* |
+; CHECK-NEXT: %a = invoke i32 %a.arg_cast() |
+; CHECK-NEXT: to label %entry.loop_crit_edge unwind label %lpad |
+ |
+; CHECK: entry.loop_crit_edge: |
+; CHECK-NEXT: %a.ret_trunc = trunc i32 %a to i8 |
+; CHECK-NEXT: br label %loop |
+ |
+; CHECK: loop: |
+; CHECK-NEXT: %b = phi i8 [ %a.ret_trunc, %entry.loop_crit_edge ], [ %c, %loop ] |
+; CHECK-NEXT: %c = add i8 1, %b |
+; CHECK-NEXT: %d = icmp eq i8 %c, 5 |
+; CHECK-NEXT: br i1 %d, label %exit, label %loop |
+ |
+; CHECK: exit: |
+; CHECK-NEXT: %aa = phi i8 [ 0, %lpad ], [ %c, %loop ] |
+; CHECK-NEXT: ret void |
+ |
+; CHECK: lpad: |
+; CHECK-NEXT: %lp = landingpad { i8*, i32 } personality i8* null |
+; CHECK-NEXT: cleanup |
+; CHECK-NEXT: br label %exit |
+ |
+define i8 @invoking_small_result() { |
+entry: |
+ %a = invoke i8 @small_result() |
+ to label %cont unwind label %lpad |
+cont: |
+ ret i8 %a |
+lpad: |
+ %lp = landingpad { i8*, i32 } personality i8* null cleanup |
+ ret i8 123 |
+} |
+; CHECK-LABEL: define i32 @invoking_small_result() |
+; CHECK: entry: |
+; CHECK-NEXT: %a.arg_cast = bitcast i8 ()* bitcast (i32 ()* @small_result to i8 ()*) to i32 ()* |
+; CHECK-NEXT: %a = invoke i32 %a.arg_cast() |
+; CHECK-NEXT: to label %cont unwind label %lpad |
+ |
+; CHECK: cont: |
+; CHECK-NEXT: %a.ret_trunc = trunc i32 %a to i8 |
+; CHECK-NEXT: %a.ret_trunc.ret_ext = zext i8 %a.ret_trunc to i32 |
+; CHECK-NEXT: ret i32 %a.ret_trunc.ret_ext |
+ |
+; CHECK: lpad: |
+; CHECK-NEXT: %lp = landingpad { i8*, i32 } personality i8* null |
+; CHECK-NEXT: cleanup |
+; CHECK-NEXT: %.ret_ext = zext i8 123 to i32 |
+; CHECK-NEXT: ret i32 %.ret_ext |
+ |
+ |
+; CHECK: attributes [[NOUNWIND]] = { nounwind } |
+; CHECK: attributes [[NOINLINE]] = { noinline } |